Converter Fed Brushless DC Motor Research Articles

Hybrid Boost-SEPIC Converter with BLDC motor for Wearable Artificial Kidney

This work aims to implement a hybrid Boost-SEPIC converter fed brushless DC motor (BLDC) for continuous operation of blood pump in wearable artificial kidney. Wearable artificial kidney will help patients with end stage kidney disease to receive dialysis while undergoing everyday activity. In this paper, a hybrid Boost-SEPIC converter has been proposed and designed for BLDC motor drive. A comparative analysis of the proposed converter with its other counterparts has been presented. The proposed hybrid Boost-SEPIC converter fed BLDC drive has been simulated in MATLAB

Design and Controlling of PV Based Zeta Converter Fed Brushless DC Motor Drive

This project present BLDC motor driven solar water pumping system which cost effective & economical for propose drive, A zeta convertor is employed in order to extract the maximum power from the SPV array. The proposed MPPT algorithm reduces the starting current of BLDC motor in order to achieve soft starting of BLDC motor. The switching of invertor is achieve by commutation of BLDC motor, thereby eliminating switching losses in invertor .The proposed system is design and modeled such that the performance isn’t affect under dynamic condition. The performance under various operating condition is analyzed & suitability of proposed system is demonstrated using MATLAB/Simulink software.

A positiveoutput‐superlift Luo converter fed brushless DC motor drive using alternative energy sources

A positive<scp>output‐super</scp>lift Luo converter fed brushless DC motor drive using alternative energy sources

An Improved SEPIC- Based Single Switch Buck-Boost PFC Converter Fed Brushless DC Motor Drive

In this paper an improved SEPIC-based single switch Buck-Boost PFC converter fed brushless DC motor drive is proposed. This converter works by one switch and voltage stress across the switch is also low. In this converter, a non-inverting output voltage is obtained. It operates at wide output voltage range by changing the duty cycle of the power switch. As only one power switch is used, the presented converter can be easily controlled. It has very low source current total harmonic distortion and achieves unity power factor which results in high efficiency operation of BLDC motor. The voltage source inverter feeding the BLDC motor operates at line frequency so that the switching loess are very low.

Performance analysis of Buck-Boost and Cuk converter-fed brushless DC motor drives

This paper presents a detailed analysis on the performances of Buck-boost and Cuk power factor converter-fed sensor-less Brushless DC (BLDC) motor drives. BLDC motors are widely preferred for low-power applications due to their high efficiency, faster dynamic response, high ruggedness, high power density, long operating life, noiseless operation, high torque-to-weight ratio and higher speed ranges. Speed of the drive is controlled by varying the DC-link voltage of the Voltage Source Inverter (VSI) feeding the motor. Switching losses in the Voltage Source Inverter are reduced by electronic commutation of the BLDC motor, thereby switching the solid state switches of the VSI at line frequency. The converters are operated in Discontinuous Conduction Mode (DCM) to achieve inherent power factor correction (PFC) at AC mains. Voltage mode control is used adjust the duty ratio of the PFC converter switch. Direct Back-EMF Zero Crossing Detection method is used for the sensor-less control of the BLDC motor. The performance of the drive is evaluated using the selected converters over a wide range of speeds. A unity power factor is achieved with power quality indices acceptable within the recommended limits of IEEE 519 standard.

A Hybrid Moth-Flame Fuzzy Logic Controller Based Integrated Cuk Converter Fed Brushless DC Motor for Power Factor Correction

This research work deals with a hybrid control system based integrated Cuk converter fed brushless DC motor (BLDCM) for power factor correction. In this work, moth-flame optimization (MFO) and a fuzzy logic controller (FLC) have been combined and a moth-flame fuzzy logic controller (MFOFLC) has been proposed. Firstly, the BLDC motor modeling is composed with the power factor correction (PFC) based integrated Cuk converter and BLDC speed is regulated using variable DC-Link inverter voltage which results in a low switching operation with fewer switched losses. Here, with the use of a switched inductor, the task and execution of the proposed converter is redesigned. The DBR (diode bridge rectifier) trailed by a proposed PFC based integrated Cuk converter operates in discontinuous inductor conduction mode (DICM) for achievement of better power factor. MFO is exhibited for gathering of a dataset from the input voltage signal. At that point, separated datasets are sent to the FLC to improve the updating function and minimization of torque ripple. However, our main objective is to assess adequacy of the proposed method, but the power factor broke down. The execution of the proposed control methodology is executed in the MATLAB/Simulink working platform and the display is assessed with the existing techniques.

A Novel M-SEPIC DC-DC Converter for BLDC Pumping System with Active PFC using ANFIS Controller

An exigent consumer related concerns confronted due to utilization of massive front-end AC-DC rectifier in a grid-tied BLDC pumping system. Harmonic distortions are acquired, which prompts the disruption of power quality at utility grid system due to AC-DC conversion. Several factors for enhancing power-quality concerns are ameliorate the grid power-factor along with reduction of harmonic distortions, tightened regulation of DC output voltage. In this way, the DC-DC boost converter plays a unique role; operated in Continuous Conduction Mode. Based on summarizing advantages &amp;amp; disadvantages of classical DC-DC converters, a single switch high voltage gain M-SEPIC DC-DC converter is more suggestive for water pumping system due to non-existence of coupled inductors, low switching loss, low di/dt stress, high efficiency, compact structure, low cost, etc. This work proposes the novel M-SEPIC DC-DC converter fed brushless-DC motor drive is controlled by voltage source inverter and powered by single-phase grid system with improved power-quality features. Moreover, Adaptive Neuro-Fuzzy Inference System is recommended for prediction of optimal switching states to amplify the BLDC motor speed and torque-ripple depreciation. The effectiveness of the proposed scheme is validated under constant speed situations by real-time operating conditions which are evaluated by Matlab /Simulink tool; and simulation results are conferred with attractive comparisons.

Reduced sensor configuration of a power factor correction based single‐ended primary inductance converter fed brushless DC motor drive

This study presents a power factor correction-based single-ended primary inductance converter (PFC-SEPIC) feeding brushless DC (BLDC) motor drive for low-power household appliances. In a conventional scheme of BLDC motor, the speed is varied by controlling the duty ratio of high-frequency pulse width modulation signals, which increase the switching losses in the voltage source inverter (VSI) feeding BLDC motor. However, this study presents a BLDC motor of which the speed is controlled by adjusting the DC bus voltage of the VSI feeding BLDC motor. Moreover, a fundamental switching frequency of VSI is employed for reduction of its switching losses by operating the BLDC motor in electronic commutation. A PFC-based SEPIC is designed for its operation in discontinuous inductor current mode such that the voltage control is achieved using a single voltage sensor with inherent PFC at AC mains; which also makes it a cost effective solution for low power applications. The proposed drive is implemented on the developed converter for the performance evaluation. This drive shows high efficiency as compared with conventional schemes of BLDC motor drive with satisfactory power quality performance at various speeds satisfying IEC 61000-3-2 standard.

An Improved Power Quality Based Sheppard–Taylor Converter Fed BLDC Motor Drive

This paper deals with the design and analysis of a power factor correction based Sheppard–Taylor converter fed brushless dc motor (BLDCM) drive. The speed of the BLDCM is controlled by adjusting the dc link voltage of the voltage source inverter (VSI) feeding BLDCM. Moreover, a low frequency switching of the VSI is used for electronically commutating the BLDCM for reduced switching losses. The Sheppard–Taylor converter is designed to operate in continuous conduction mode to achieve an improved power quality at the ac mains for a wide range of speed control and supply voltage variation. The BLDCM drive is designed and its performance is simulated in a MATLAB/Simulink environment to achieve the power quality indices within the limits of the international power quality standard IEC-61000-3-2.

A PFC-Based BLDC Motor Drive Using a Canonical Switching Cell Converter

This paper presents a power factor correction (PFC)-based canonical switching cell (CSC) converter-fed brushless dc motor (BLDCM) drive for low-power household applications. The speed of BLDCM is controlled by varying the dc-bus voltage of voltage source inverter (VSI). The BLDCM is electronically commutated for reduced switching losses in VSI due to low-frequency switching. A front-end CSC converter operating in discontinuous inductor current mode (DICM) is used for dc-bus voltage control with unity power factor at ac mains. A single sensor for dc-bus voltage sensing is used for the development of the proposed drive, which makes it a cost-effective solution. A prototype of the proposed configuration is developed, and its performance is validated with test results for the control of speed over a wide range with a unity power factor at universal ac mains.

Improved power quality bridgeless Cuk converter fed brushless DC motor drive for air conditioning system

This study presents a bridgeless Cuk converter-fed brushless DC (BLDC) motor drive for an air conditioning system. A new approach of speed control of BLDC motor is proposed by controlling the voltage at DC bus using a single voltage sensor. The proposed drive utilises a bridgeless Cuk converter operating in discontinuous inductor current mode (DICM) for the power factor correction (PFC) and improved power quality (PQ) at the AC mains for a wide range of speed control. The bridgeless Cuk converter operating in a DICM gives an inherent PFC and requires a simple voltage follower approach for the voltage control. The bridgeless converter topology is designed for obtaining the low conduction losses and requirement of low size of heat sink for the switches. The proposed system is designed and its performance is simulated for an air conditioning system to operate over a wide range of speed control with near unity power factor at AC mains. Finally, the performance of the proposed drive obtained in simulation is validated with test results on a developed drive for its operation over a wide range of speed control with improved PQ at AC mains.