Main Device Research Articles

An original hybrid-architecture finger mechanism for wearable hand exoskeletons

Robotic devices for rehabilitation and assistance are becoming crucial tools for improving the life quality of people with disabilities. The hand is one of the most affected upper-limb parts, but also fundamental for the subject’s interaction with the external environment. Wearability and portability, safety and comfort, lightness and small sizes, independent finger movement, efficacy in daily activities, sense-of-touch preservation, and affordability are the main features such devices should have. This paper will present an in-depth study of a thumb module for wearable hand exoskeletons, designed as a base concept to be adapted to the other fingers. Specifically, it exploits a new hybrid architecture (meaning that rigid and soft elements are included in the finger mechanism) to reduce the overall dimensions while remaining effective in force transmission. An embodiment of the mechanism is also presented and tested. As well as turning out to be small, light, and cheap, the new concept design demonstrates a minimum coverage of the finger range of motion of about 84% and an exerted force up to 16.78 N.

MODERNIZATION OF BOTTOM SEDIMENT SCOURING PROCESS IN RVSP 20000 TANKS

According to the existing norms a tank should be necessarily taken out of operation once in 8-10 years for diagnostic works. The most labor-intensive part is removal of paraffin deposits from its bottom. In this regard, the main purpose of the study is to study the technology of the process of scouring bottom sediments in steel vertical cylindrical tanks with a pontoon volume of 20000 m3 (RVSP 20000) and modeling the operation of various cleaning devices to determine the most effective of them.
 The RVSP 20000 tank includes a device for bottom sediment scouring «DIOGEN-700». In the process of its operation under the action of the rotating blade of the propeller a jet of liquid is created, which mixes oil in the tank due to circular movement of streams. The greatest ac- cumulation of paraffin trace is observed in the-near-wall zone of the tank, therefore there is a need to find a new method of hydromechanical prevention of sludge accumulation on the bottoms of oil tanks.
 As the main device for bottom cleaning it is proposed to use a stirring jet device («UPS-EVNAT»). It divides one main stream into several equal parts. As a result, the area of sediment scouring is higher than when using standard equipment.
 In this work, the turbulent string flow with the use of screw agitator «DIOGEN-700» and with the use of «UPS-EVNAT» was modeled. The revealed results allow to assert that the application of agitating jet device allows to realize better quality erosion of paraffin deposits and cover a larger area in comparison with «DIOGEN-700».

Application of Petrographic and Stereological Analyses to Describe the Pore Space of Rocks as a Standard for the Characterization of Pores in Slags and Ashes Generated after the Combustion of Municipal Waste.

Slags and ashes generated in thermal waste treatment facilities require proper management. In line with the principles of the circular economy, new, more economical, and ecological possibilities for utilizing these substances are sought. These waste materials exhibit characteristics similar to rocks in many aspects. This study focuses on analyzing the similarities and differences between nine selected rocks and three samples of slags and ashes obtained from municipal waste incineration. The main research device used was a polarizing microscope, using reflected, transmitted, and fluorescent light. Additionally, low-pressure gas adsorption equipment, as well as helium and quasi-liquid pycnometers, were used for complementary analysis. The parameters analyzed mainly covered broadly defined petrographic properties of rocks and slags, with a particular emphasis on porosity, porous structure, and the spatial distribution of pores and fractures. The conducted analyses confirmed a significant similarity between slags and ashes and clastic sedimentary rocks such as sandstones and mudstones. The research results underscore the importance of petrographic microscopic studies for analyzing materials other than rocks. They also allow for exploring applications for slags and ashes in areas traditionally reserved for natural rock resources. The findings also indicate the necessity of using methods other than microscopic ones to describe the pore space of rocks. The lower measurement range of the optical microscope is limited to approximately 1 μm, covering only macropores. Other methods extend this characteristic to micro- and mesopores. Therefore, a combination of different methods is often employed to obtain a more comprehensive characterization of rock porosity.

“Somewhere along your pedigree, a bitch got over the wall!” A proposal of implicitly offensive language typology

Abstract The automatic detection of implicitly offensive language is a challenge for NLP, as such language is subtle, contextual, and plausibly deniable, but it is becoming increasingly important with the wider use of large language models to generate human-quality texts. This study argues that current difficulties in detecting implicit offence are exacerbated by multiple factors: (a) inadequate definitions of implicit and explicit offense; (b) an insufficient typology of implicit offence; and (c) a dearth of detailed analysis of implicitly offensive linguistic data. In this study, based on a qualitative analysis of an implicitly offensive dataset, a new typology of implicitly offensive language is proposed along with a detailed, example-led account of the new typology, an operational definition of implicitly offensive language, and a thorough analysis of the role of figurative language and humour in each type. Our analyses identify three main issues with previous datasets and typologies used in NLP approaches: (a) conflating content and form in the annotation; (b) treating figurativeness, particularly metaphor, as the main device of implicitness, while ignoring its equally important role in the explicit offence; and (c) an over-focus on form-specific datasets (e.g. focusing only on offensive comparisons), which fails to reflect the full complexity of offensive language use.

Semiotic Organization of Russian Environmental Internet Memes

In this article, the authors examine Russian environmental internet memes, presented on social networks such as VKontakte, Odnoklassniki, and on websites like Memepedia, Pikabu, and A. Chistopashin’s site. They have developed a set of criteria relevant for the analysis of environmental internet memes as complex linguistic and semiotic formations. The aim of the study was to identify the specific features of the semiotic organization of environmental internet memes and establish the dominant semiotic code that determines the conceptual content of the meme. It is shown that the Russian-speaking segment of environmental communication through memes has its own thematic and genre specificity. Environmental internet memes usually rely on the use of media semiotic codes, where the meme includes both text and illustration. Less frequently, memes are created based on narrative semiotic codes, where the visual component illustrates the beginning, climax, or end of a story. The verbal component is dominant when borrowing viral visual templates. The main stylistic device in environmental internet memes, alongside irony and the effect of false expectation, is linguistic play. Semiotic analysis of internet memes has shown that the combination of verbal and visual signs is typical for the media segment of environmental internet communication.

One-lung ventilation with a bronchial blocker in thoracic patients

BackgroundLung isolation is a technique used in a multitude of surgeries to ensure single-lung ventilation with collapse of the contralateral lung, as to achieve improved access and visualization of relevant anatomical structures. Despite being accepted and having favorable outcomes, bronchial blockers (BBs) are not to this day the main device of choice among anaesthesiologists.MethodsIn this retrospective and descriptive study, we analyzed the safety and efficacy of a BB in all types of thoracic surgeries in our centre between 2015 and 2022, excluding patients with massive hemoptysis or empyema, or who had undergone a prior pneumonectomy.ResultsOne hundred and thirty-four patients were intervened due to lung cancer (67.9%), respiratory disease (23.9%), and non-respiratory disease (8.2%) undergoing lung surgeries (65.7%), pleural and mediastinal surgeries (29.9%), chest wall surgeries (3.0%) and other surgeries (1.5%). In most cases, lung collapse was considered excellent (63.9%) or good (33.1%) with only 4 cases (3.0%) of poor lung collapse. More than 90% of patients did not present intraoperative or immediate postoperative complications. No statistically significant differences were found between lung collapse and the demographic, clinical or BB-related variables (p > 0.05). However, we found a significatively higher proportion of excellent lung collapses in VATS surgeries and lateral decubitus positioning, as well as a significatively less proportion of poor lung collapses (p < 0.05). Moreover, there was a significantly higher proportion of excellent lung collapses when the BB was placed in the left bronchus (p < 0.05).ConclusionsWith these results, in our experience BBs constitute an effective alternative, capable of achieving pulmonary collapse in all kinds of thoracic procedures with satisfactory safety rates due to their minimal complications.

Aspiration-irrigation in laparoscopic and robot-assisted surgery. Historical aspects and modern devices

Visualization is one of the key factors for successful operation in endovideosurgery. Aspiration and irrigation play a critical role in ensuring adequate visualization at all stages of operations in general surgery, urology, gynecology and other areas of surgery. It is almost impossible to imagine any minimally invasive surgery without the use of an aspirator-irrigator. It is necessary to protect the intra-abdominal space from contamination and/or removal of blood, clots or other fluid during surgery, which in turn is essential to ensure adequate visualization of the surgical area. This article identifies the main historical stages in the introduction of aspiration and irrigation in minimally invasive surgery, as well as the main devices for removing biological fluids during laparoscopic and robotic operations, used in modern surgery.

Flexible Energy Storage Devices to Power the Future.

The field of flexible electronics is a crucial driver of technological advancement, with a strong connection to human life and a unique role in various areas such as wearable devices and healthcare. Consequently, there is an urgent demand for flexible energy storage devices (FESDs) to cater to the energy storage needs of various forms of flexible products. FESDs can be classified into three categories based on spatial dimension, all of which share the features of excellent electrochemical performance, reliable safety, and superb flexibility. In this review, the application scenarios of FESDs are introduced and the main representative devices applied in disparate fields are summarized first. More specifically, it focuses on three types of FESDs in matched application scenarios from both structural and material aspects. Finally, the challenges that hinder the practical application of FESDs and the views on current barriers are presented.

Модель информационно-измерительной системы контроля центробежного грузового насоса на танкере-химовозе типа «Иван Поддубный»

On chemical tankers, the main cargo devices are pumps, so it is necessary to constantly monitor their operating conditions and performance indicators during operation. The article discusses modeling using MATLAB/Simulink software of a single-stage horizontal centrifugal pump, which can be used to create an information-measuring system for monitoring the performance of cargo pumps using the example of a chemical tanker of the Ivan Poddubny type. An analysis of the modeling results is carried out, including an assessment of pump efficiency, pressure loss and other indicators in various operating modes. The results allow us to draw conclusions about the operation of the pump under various loads and variable conditions. The simulated pump worked with seven different liquids pumped in chemical tankers: ethyl alcohol, N-propyl alcohol, phenol, chloroform, castor oil, 55% nitric acid and water. After this, a neural network was created using the MATLAB/Neural Network Fitting Tool application. The input data of the network were volumetric flow, pressure, shaft power, torque and suction pressure. The output value was the pump efficiency, the value of which was estimated for each fluid. The root mean square error of approximation was very close to zero. According to these results, the artificial neural network showed satisfactory results for predicting the efficiency of the centrifugal cargo pump of the Ivan Poddubny type chemical tanker; therefore, it can be used in ship information and measurement systems. Overall, this paper represents a valuable research contribution to the field of modeling horizontal centrifugal pumps using Simulink that can be useful to engineers and researchers involved in the design and optimization of these pumps.

РОЗРОБКА ТА ДОСЛІДЖЕННЯ МОДЕЛІ ПІД-РЕГУЛЯТОРА НАПРУГИ ДУГИ ПІД ЧАС НАПЛАВЛЕННЯ

The development and testing of a PID-controller model capable of automatically adjusting and maintaining the specified arc voltage during electric arc welding are presented. Some features of arc surfacing processes are analyzed. In particular, the choice of surfacing modes, as well as the main devices - potentiometers, which are used in the electrical circuits of surfacing installations to regulate the main parameters of surfacing modes - voltage and current. Evidence is presented for the need to control the voltage directly on the arc, rather than the voltage on the power source, to regulate the welding process. Based on this analysis, a model of the PID- controller of the arc voltage during arc welding was created using the Simulink MATLAB program. The test results of the PID-controller show that the device provides more accurate and stable setting of the deposition mode than traditional control methods. The PID-controller will make it possible to significantly reduce possible errors in the development and use of technologies of automatic arc welding of various parts and products. References 10, figures 6, table 1.

Real-world outcome and long-term survival analysis after trans-catheter aortic valve implantation (TAVI) - does age matter?

Abstract Background Transcatheter aortic valve implantation (TAVI) is the treatment of choice in elderly patients irrespective of surgical risk. Since a clear cut-off in age is still a matter of debate during heart team decision making between TAVI and surgical aortic valve replacement (SAVR), outcome data of younger patients undergoing TAVI due to high surgical risk are of great clinical interest. Thus, the current study aimed to compare outcome and long-term survival data in typical elderly versus younger TAVI patients. Methods and Results This single-center outcome and up to 2-year survival analysis reports data of 619 patients (mean age: 79 ± 7 years; 50% female; mean STS score 4.7 ± 3.9%) that underwent transfemoral TAVI between August 2016 and September 2020. The cohort was classified into typical elderly (&amp;gt; 70 years, n=542) and younger (≤ 70 years, n=77) patients. Mortality rates were available for all patients at 30 days, 1 year and 2 years after TAVI. The STS score was 5.0 ± 4.0% in elderly compared to 2.8 ± 2.2% in younger subjects (p &amp;lt; 0.001). The main devices implanted were the balloon-expandable Edwards Sapien 3 (61% in) and the self-expanding Medtronic EvolutR (36%) device without differences between the groups (p=n.s.). The procedural success rate in the total cohort was &amp;gt; 99% and we identified the following prevalence rates of peri- and postprocedural complications (each in comparison between elderly vs. younger patients): acute vascular complications - 6.1% vs. 5.4% (p=n.s.); bleedings requirement of transfusion - 9.2% vs. 2.7% (p=0.059); disabling strokes - 2.3% vs. 1.4% (p=n.s.); requirement of new pacemakers - 11.1% vs. 3.9% (p=0,052) and acute kidney injuries - 2.7% vs. 1.4% (p=n.s.). At the 6 weeks follow-up, both, elderly and younger patients reported improvement of symptoms (NYHA class), which was underlined by a significant decrease in brain natriuretic peptide (BNP) and improved 6-minutes’ walk distances (SMWD) (p&amp;lt;0.001 for each parameter). While there were no differences between the groups for NYHA class and BNP (p=n.s.), SMWD was higher in younger patients (p&amp;lt;0.001). Interestingly, Kaplan Meier analysis revealed the following short- and long-term mortality rates (each in comparison between elderly vs. younger patients): 3.4% vs. 1.3% after 30 days (p=n.s.); 17.2% vs. 10.5% after 1 year (p=n.s.) and 25.2% vs. 17.1% after 2 years (p=n.s.; figure 1). Conclusion The results of this real-world analysis demonstrate that TAVI in younger patients not eligible for surgery after heart team evaluation is safe and not inferior compared to a typical elderly cohort, especially regarding complication rates, clinical outcomes and mortality until 2 years after implantation. Thus, younger age alone should not discard TAVI as therapeutic option for AS in cases with either high surgical risk or other individual factors speaking against surgery at the time when treatment is indicated.

Simulation-based analysis of total ionizing dose effects on low noise amplifier for wireless communications

The development of radiation-tolerant radio-frequency (RF) systems can be a solution for applications in extreme radiation environments, such as nuclear power plant monitoring and space exploration. Among the crucial components within an RF system, the low noise amplifier (LNA) stands out due to its vulnerability to TID effects, mainly relying on transistors as its main devices. In this study, the TID effects in the LNA using standard 0.18 μm complementary metal oxide semiconductors (CMOS) technology are estimated and analyzed. The results show that the LNA can withstand absorbed radiation up to 100 kGy. The S21, S11, noise figure (NF), stability (K), and linearity of the third input intercept point (IIP3) slightly shifted from the initial values of 0.8312 dB, 0.793 dB, 0.00381 dB, 1.34406, and 2.36066 dBm, respectively which are still comparable to the typical performances. Moreover, the standard 0.18 μ m technology has demonstrated its radiation tolerance, as it exhibits negligible performance degradation in the conventional LNA even when exposed to radiation levels up to 100 kGy. In this context, simulation approach offers a means to predict the TID effects and estimate the radiation exposure limit for electronic devices, particularly when transistors are used as the primary RF components.

CFD simulation and optimization of an industrial cement gas–solid air classifier

An air classifier is one of the main and effective devices in cement industry. In this study, a three-dimensional, steady and two-phase (solid-gas) computational fluid dynamics (CFD) simulation was performed to optimize the performance of this device in the Kerman Momtazan cement plant, Iran. After the validation of CFD results, the air flow field and air path lines between fixed blades were checked carefully and the non-uniformity in velocity distribution and the formation of vortex flows between the blades close to particle inlets were observed. The study tried to improve the device efficiency by changing the method of entering particles into the device, resulting in a reduction in air classifier electrical energy consumption (from 41 to 35 (kW h)/t) and an increase in production rate (from 203 to 214 t/h). Additionally, the study investigated the effects of other modifiable operating conditions like rotary cage rotation speed, pressure difference, and inlet air temperature on the particle size distribution and classifier efficiency. The results showed that increasing the cage rotation speed decreased the product rate and the product particles mean diameter while increasing pressure difference or increasing temperature increased the product rate and the product particles mean diameter. It was concluded that these modifiable operating conditions can significantly affect the performance of the air classifier in the cement industry.

Research on Online Gas Volume Monitoring Technology of Intelligent Gas Relay

The gas relay is the main non-electrical protection device of the transformer, which plays an important role. Traditional detection methods can not reflect the gas relay level, and there will be gas relay false alarms in operation and maintenance. Firstly, the working principle of the gas relay was analyzed, and a non-conductive capacitance sensor was proposed to realize the real-time monitoring of gas volume in the gas relay. Then, a new online monitoring scheme for intelligent gas relays was constructed through the selection analysis and optimization design of the gas protection module and liquid-level measurement module. Based on the changing state of gas volume in the gas relay, a more accurate and timely fault diagnosis of the power transformer was realized, and the prototype processing was completed. Finally, the feasibility of the volumetric testing method was verified by comparing the two conditions of different liquid-level heights and different ambient temperatures. The proposed method is of great significance for discovering the latent faults of transformers and realizing the condition monitoring of oil-immersed power transformers, which ensures the safety of power grid equipment and personnel.

Analysis of the difference of test methods for laboratory compaction characteristics of soil

For earthworks (house foundation, road, ....), the degree of compaction is the basic quality factor to ensure long-term stability and economic efficiency of the project. The higher the degree of compaction, the greater the building load capacity. However, the degree of compaction of the structure depends not only on the material, but also on equipment and compaction energy. For each type of material, the degree of compaction is expressed as the ratio of the actual applied dry volumetric mass achieved to the maximum dry volumetric mass of the same soil determined by the standard compaction test. standard in the laboratory. Therefore, laboratory tests to determine the standard compaction value must be studied to suit the compaction construction technology. Standard soil compaction in the laboratory is determined based on two main compaction devices: the standard Proctor device and the improved Proctor device.

A Comprehensive Review of Fault Diagnosis and Prognosis Techniques in High Voltage and Medium Voltage Electrical Power Lines

This paper presents an extensive review of the most effective and modern monitoring methods for electrical power lines, with particular attention to high-voltage (HV) and medium-voltage (MV) systems. From a general point of view, the main objective of these techniques is to prevent catastrophic failures by detecting the partial damage or deterioration of components and allowing maintenance operations to be organized. In fact, the protection devices commonly used in transmission and distribution networks guarantee the location of faults, such as short-circuits, putting the non-functioning branch of the network out of service. Nowadays, alongside these devices, it is possible to introduce new intelligent algorithms capable of avoiding the total loss of functionality, thus improving the reliability of the entire network. This is one of the main challenges in modern smart grids, which are characterized by the massive integration of renewable energy sources and a high level of complexity. Therefore, in the first part of this paper, a general overview of the most common protection devices is proposed, followed by an analysis of the most modern prevention algorithms. In the first case, the coordination of the relays plays a fundamental role in obtaining the fault location with a high level of selectivity, while in the field of preventive analysis, it is necessary to address the implementation of artificial intelligence methods. The techniques presented in this paper provide a comprehensive description of the different monitoring approaches currently used in distribution and transmission lines, highlighting the coordination of protection relays, the computational algorithms capable of preventing failures, and the influence of the distributed generation in their management. Therefore, this paper offers an overview of the main diagnostic techniques and protection devices, highlights the critical issues that can be overcome through the introduction of artificial intelligence, and describes the main prognostic methods, focusing on their invasive level and the possibility of operating directly online. This work also highlights the main guidelines for the classification and choice between the different approaches.

Technical aspects of the development of solar energy refrigeration technology on solid sorbents

Objective. The purpose of the study is a scientific review of the stages of development of refrigeration technology with sorption action on solid sorbents and an assessment of the current state of development of such household equipment in relation to the use of solar energy.Method. The dynamics of the development of solar energy refrigeration equipment based on sorption thermotransformers, the working vapors of which are solid sorbents and ozone-safe refrigerants, are analyzed. The beginning of development comes from the creation of periodic installations operating from the thermal energy of traditional energy carriers: hot water, burning of hydrocarbon or organic fuels, electric energy, and cooling with water and air and ends with modern refrigeration units operating from the energy of solar radiation and the daily temperature difference of the environment.Result. The peculiarities of making technical decisions underlying the design of the main devices of solar energy refrigeration units are noted. Circuit designs and operating principles of installations and their devices used to improve operating efficiency are described. The main trends in research conducted by scientists to improve the operation of solar energy thermal transformers of cyclic action are considered.Conclusion. This article may be useful to young scientists, engineers and designers for the design and development of innovative autonomous thermal transmitters and refrigeration units for cooling and short-term storage of products and medicines, obtaining food ice, air conditioning, operating independently from solar energy. Such installations are easy to manufacture and operate.

Research progress of automatic grasping methods for garment fabrics

Purpose The purpose of this paper is to gain an in-depth understanding into the research progress, hot spots and future trends in smart gripping technology in the field of apparel smart manufacturing.Design/methodology/approach This work scrutinised the current research status of the five automatic grasping methods for garment fabrics including the pneumatic suction grasping, the electrostatic grasping, the intrusive grasping and the dexterous grasping. Specifically, the principles, characteristics, main devices and the impact on garment production were discussed.Findings In particular, soft finger of the dexterous grasping method has good flexibility and adaptability in the process of fabric grasping, which provides a new solution for garment production automation. Up to now, the reviewed method in general exhibit good grasping speed, high grasping stability and flat grasping process. However, in the face of complex fabric materials which are thin and flexible and do not return their original shapes when deformed in practical applications, the gripper for automatic fabric grasping need new technological breakthroughs in the positioning accuracy, grab efficiency and flexible grasping.Originality/value The outcomes offered an overview of the research status and future trends of the automatic grasping methods for garment fabrics in the field of apparel intelligent manufacturing. It could not only provide scholars with convenience in identifying research hot spots and building potential cooperation in the follow-up research but also assist beginners in searching core scholars and literature of great significance.

High cost-effective photonic assisted in-band interference cancellation scheme for centralized radio access network towards future 5G communication

A photonic-assisted scheme capable of self-interference cancellation (SIC) and image rejection mixing (IRM) is demonstrated to solve the intractable problem of in-band interference for in-band full duplex (IBFD) systems with high frequency and large bandwidth. In the proposed scheme, a single optical path configuration is constructed based on an integrated modulator applied as the main device. The SIC operation is implemented in the optical domain making it immune to the influence caused by fiber dispersion. Owing to the intermediate frequency (IF) signal amplitude regulation mechanism under the combined action of fiber dispersion induced phase and double sideband (DSB) modulation, the scheme can realize IRM without increasing the system complexity. Experimental results show that the 50 MHz 16-quadrature amplitude modulation (16-QAM) signal of interest (SOI) centered at different frequencies are down-converted to 2.5 GHz. The depth of SIC and image-rejection (IR) is over 35 dB and 25 dB after transmitted through a span of 10.1 km optical fiber. The received 16-QAM down-converted signal can be recovered with an error vector magnitude (EVM) which satisfies the requirement of 3GPP-specified EVM limit. The signal recovery performance, SIC depth and image rejection ratio (IRR) under different signal to interference ratio (SIR) is also investigated. In addition, a comparison of relevant literature with this scheme from the perspective of technical discussion is also presented. The proposed scheme can realize effective functional integration with compact structure, simple parameter tuning mechanism, improved stability and high cost-effectiveness to solve the in-band interference problem which is of great value to be applied in IBFD centralized radio access networks (CRAN) towards future 5G communication.

An Extended Topology Named Active Switched Capacitor/Switched Inductor Quasi-Z-Source with Multilevel Inverter (ASC/SL-QZSI) for Three-Phase Grid-Tie PV Power System: A SPBO–RBFNN Control Scheme

In this paper, the controller modelling and design for the Active Switched Capacitor/Switched Inductor Quasi-Z-Source with Multilevel Inverter (ASC/SL-QZSI) related three-phase grid-tied photovoltaic (PV) power system is proposed. The ASC/SL-QZSI control method consists of two phases: these are assessed with the use of the proposed effective controller. The proposed control system is the hybridization of the Student Psychology-Based Optimization (SPBO) and the Radial Basis Function Neural Network (RBFNN), hence it is named SPBO–RBFNN control scheme. The ASC/SL-QZS offers greater boost capability, uses fewer passive components, like inductors and capacitors, and reduces the voltage stress across main inverter switching devices. The expandability of this topology is another advantage. Extra cells can simply be cascaded at the network’s impedance if a higher boost rate is required by adding an inductor and three diodes. In the proposed control scheme, SPBO is developed for determining the total PV voltages. The input PV reference voltages and gain parameters of the SPBO are created as output for optimal tuning of the Proportional Integral (PI) controller. RBFNN is trained with offline process and it is used to extract the reference currents of the grid, and the output of RBFNN is provided with SPBO. It delivers the corresponding tuning parameters to accomplish the grid current. With this proper control, the input power is reduced and the current, voltage and frequency conditions of DC-link are regulated. Finally, the performance of the QZS-CMI is executed in MATLAB and the performance is compared with existing methods.