Solar Photovoltaic Water Pumping Research Articles

Reduced DC sensor based grid-interactive operation of single-stage solar photovoltaic water pumping system

ABSTRACT The grid-interactive operation of a single-stage solar photovoltaic water pumping system (SPVWPS) requires additional power electronic interface and a number of sensors. This paper realizes the grid-interactive operation of the single-stage SPVWPS with reduced sensor and without adding to the cost of the grid-interface converter. The single-phase grid is connected directly with the SPVWPS and the three-phase inverter is controlled as a single-phase grid-interactive inverter. The motor winding inductance is utilized as a current filter. This arrangement functions as a photovoltaic-static synchronous compensator (PV-STATCOM) with voltage-oriented current control by feeding the peak solar photovoltaic (SPV) power to the grid and supporting the reactive power to alleviate steady-state grid voltage variations. The modified adaptive second-order generalized integrator (SOGI) is utilized for effective grid-angle estimation under the presence of DC-bias in the input signal. The modified perturb and observed maximum power point tracking (MPPT) technique is implemented using grid-side quantities, which curtails the requirement of the SPV current sensor. Extensive experiments are performed on the developed prototype under the variable atmospheric and the variable grid voltage conditions. The presented grid-interactive SPVWPS is realized with single power electronics device and three sensors. The cost of power electronics interface is reduced in presented single-stage grid-interactive SPVWPS by 22% compared to two-stage grid-interactive SPVWPS. Abbreviations: FLL: Frequency Looked Loop; PFC: Power Factor Correction; FFT: Fast Fourier Transform; PV: Photovoltaic; SPVWPS: Solar Photovoltaic Water Pumping System; MPPT: Maximum Power Point Tracking; P & O: Perturb and Observe; SPV: Solar Photovoltaic; OSG: Orthogonal Signal Generator; PWM: Pulse Width Modulation; SOGI: Second-order Generalized Integrator; PEC: Power Electronic Converter; RMS: Root Mean Square; VSI: Voltage Source Inverter; PF: Power Factor; RMF: Rotating Magnetic Field; VSC: Voltage Source Converter; PI: Proportional Integral; SySPWM: Synchronous Sine Pulse Width Modulation

Techno-economic feasibility of solar water pumping system in North-Gujarat region, India

North Gujarat region of India is predominantly known for agro based economy. As surface water sources are very much limited in these regions, irrigation mainly depends upon underground water strata available at different water table. (Viswanathan, 2014). Close to 80 per cent of the total irrigated area is dominated by deep and shallow tube wells while canal water covers hardly 20 per cent. Gujarat ranked fourth in terms of energization of pump sets over the past three decades, showing more than fivefold increase in the number of pump sets from 2.62 Lakhs during 1983 to 14.28 Lakhs during 2017 and around 3.5 lakh applications are still pending. The agriculture sector in Gujarat utilizes about 27 per cent of the total electricity supplied by Gujarat Urja Vikas Nigam Limited. Contrarily, out of the net revenue generated by GUVNL, only 3 per cent is contributed by the agriculture consumers owing to highly subsidized rate of 60 paisa/kWh. Solar photovoltaic (PV) pumps are powered by an array of solar panels. Solar PV pumps are designed to operate on DC power produced by solar panels, or on existing AC pump with inverter. Solar pumps are easy to install and are generally “good” for the sustainability of boreholes due to their low extraction volumes spread over eight to ten hours a day. To cope up the ever increasing demand, the Gujarat government has provided solar-powered water pumps to farmers to reduce the burden on existing power plants and encourage the farmers to opt for solar powered pumps for their regular irrigation needs. A study on techno economic feasibility of solar water pumping system at farmers fields was carried out during 2015 and 2016 in the North Gujarat region. The study recommended the farmers to adopt 5 hp solar photovoltaic water pumping system coupled with micro irrigation system to promote eco-friendly daytime irrigation. The North Gujarat region is endowed by abundant solar radiation for 300–315 days with insolation of 4.5–6.5 kWh/m2/day. The system is found quite appropriate in the total head range of 5–85 m. Life cycle cost (LCC) of PV system was found to be 58.5 per cent less compared with diesel pump set, average payback period was found to be about 04 years.

Analysis of tilt angle variation in solar photovoltaic water pumping system

The paper considers the optimum tilt angle and orientation for the maximum utilization of the solar energy to collect more solar radiation for water pumping application in remote area. The module of tilt angle should be varied from 0° to 45° due to the single-axis tracking system. This paper deals with the effect of tilt angle variation in solar-water pumping system technologies. For this purpose four different tilt angles 8°, 15°, 30°, and 45° have been considered. The total amount of water to be extracted to the fixed tilt angle depends upon the latitude of the site and compared to different tilt angles which are suitable for the better performance of solar PV water pumping system. The performance analyzing models are designed using PVsyst simulation software. A comparative analysis is performed for different tilt angles with respect to solar yield, performance ratio, and energy losses to fulfill the irrigation system and domestic water demand. The software simulation indicated that the 30° orientation of PV panel provided maximum solar radiation and gives better performance.

Performance Analysis of Solar Water Pumping System at Nawabshah

Performance of solar photovoltaic water pumping units relies on available solar radiations of the area, geographical conditions and system configurations. This study was conducted to analyze the influence of solar radiation, motor speed and water head on water discharge of a solar water pumping systems (SWPS). For that, a SWPS was installed, configured and its performance was examined at Sadiqabad Colony, Nawabshah for two consecutive months from 12:00 to 13:00 hours. Light meter, Model- HDS 2302.0, Delta OHM was used for measurement of global solar radiation, PROVA-RM 1000 tachometer for motor pump speed and stopwatch for recording of elapsed time for filling up of 30 liters capacity water can. Results revealed that the average minimum solar radiations were 776 W/m2 at 12:00 hours in the month of May and maximum 902 W/m2 at 13:00 hours in the month of June during experimental work. The maximum average motor speed and flow rate were noted at L1 and minimum at L4, whereas, the maximum time taken by the solar water pumping system for filling up of water can at L4 and minimum at L1. The time taken to provide one liter of water was found inversely proportional with motor speed and directly with the water head.

Design of Efficient Off-Grid Solar Photovoltaic Water Pumping System Based on Improved Fractional Open Circuit Voltage MPPT Technique

The main application of off-grid solar photovoltaic (SPV) systems is water extraction in rural areas where access to the grid is restricted. In this application, photovoltaic (PV) and pump system regulation are crucial to increase its overall efficiency. In this context, this work presents a simple and efficient off-grid SPV water pumping system (SPVWPS). The designed system is based on a DC-DC boost converter, a three-phase DC-AC inverter, and a three-phase induction motor (IM) coupled to the centrifugal pump. The proposed solution is operated using a control strategy that associates an improved fractional open-circuit voltage (FOCV) method for maximum power point tracking (MPPT) and closed-loop scalar control. This association avoids the use of a speed sensor/encoder and a current sensor for the IM. Finally, the effectiveness of the proposed off-grid SPVWPS and its control system for both steady-state and dynamic conditions of insolation change is verified using a 1KVA rated prototype. The relevance of the drive is also checked in various operating conditions and is found to be adequate for pumping water. Moreover, the proposed method guarantees a fast response, less oscillations around the MPP, a system efficiency of 99%, and a high flow rate due to the extraction of maximum power.

Assessment of Solar Photovoltaic Water Pumping of WASA Tube Wells for Irrigation in Quetta Valley Aquifer

This paper investigates the impact of tube wells on the discharge and water table of the Quetta Valley aquifer and conducts a financial analysis of the solar photovoltaic water pumping system (SPVWP) in comparison with a typical pumping system for the Water and Sanitation Agency of Quetta’s (WASA) tube wells. Quetta Valley is dependent on groundwater as surface resources are on decline and unpredictable. The population of this city has exponentially increased from 0.26 million in 1975 to 2.2 million in 2017 which has put a lot of pressure on the groundwater aquifer by installing more than 500 large capacity tube wells by WASA and Public Health Engineering (PHE) departments in addition to thousands of low-capacity private tube wells. The unprecedented running of these wells has resulted in drying of the historical Karez system, agricultural activities, and the sharp increase in power tariffs. There are 423 tube wells in operation installed by WASA in addition to PHE, Irrigation and Military Engineering Services (MES), which covers 60% of the city’s water demand. The results will be beneficial for organizations and positively impact the operation of these wells to meet public water demand. For the two zones, i.e., Zarghoon and Chiltan in Quetta Valley, recommendations are given for improved water management.

High gain boost converter fed asynchronous motor drive for water pumping system

ABSTRACT High gain dc–dc boost chopper are rapidly expanding substituting power converters for Photo Voltaic (PV) appliances. Investigators are creating different schemes to accomplish greater voltage gain, low ripple, switch stress, decreases the cost of converters and reduces the fluctuations at the photovoltaic operation point. This paper proposes a two-stage converter for standalone solar photovoltaic (PV) water pumping drive system. High Gain (HG) cell combined with DC-to-DC boost converter. This compound converter provides dc voltage fed asynchronous motor drive system. The utilisation of three-phase asynchronous motor introduces a superior solution to the industrial DC motor-based water pumping scheme. A three-phase asynchronous motor connected to voltage source inverter (VSI), which in turning throws the centrifugal pump. The scheme comprises of a PV array, high-gain DC–DC chopper, 3-Phase Voltage Source Inverter (VSI), motor and a pump. Incremental conductance method used to obtain maximum power from a solar PV structure. Indirect Field Oriented Control of an asynchronous motor is employed to achieve soft starting of the motor. The scheme setup is simulated using MATLAB/Simulink. The proposed system is tested experimentally. The results accomplished demonstrate the scheme fitness for PV water pumping.

Solar water pumping systems: A tool to assist in sizing and optimization

The United Nations estimates that about 25% of the earth’s population will live in countries where access to water will be a recurrent problem by 2025. This article proposes a methodology and open-access software tool for rural off-grid communities and users with little knowledge about solar photovoltaic water pumping systems (SPVWPS) to provide access to safe water for consumption. The proposed methodology assists in all stages of the project: conducting a prefeasibility study, sizing and optimizing, maintenance and financial analysis. It includes components selection, optimal dimensioning of the SPVWPS, behavior prediction, yearly distribution of the water shortage probability (WSP) and a basic financial analysis. The tool suggests a water tariff to help ensure the project’s financial viability. The most interesting findings of this research is that the size – hence the feasabilty – of a project depends mostly on the population tolerance to water shortage. The concept of water shortage probability (WSP) is introduced to help in defining the appropriate size and cost of the systems. This WSP is calculated for each day of the year. A comprehensive literature review is presented and two case studies were used to validate its potential. It is found that only about 10% of the total energy produced by the PV modules is effectively used to fulfill the water needs.

Cost-benefit analysis of adopting the solar photovoltaic water pumping system: A case of Rajasthan

Rajasthan, the largest state in India, occupies 10.5 per cent of the total geographical area of the country, although about two-thirds of its area is arid. The state has a predominantly agrarian economy, and agriculture is the mainstay of about two-thirds of the workforce. Interestingly, only 28 per cent of the net cultivable area in the state is irrigated, compared to the national average of 49.8 per cent. With the aim to improve irrigation facilities and increase agricultural productivity, the state government implemented the solar photovoltaic water pumping system (SPVWPS) in 2008-09 as an appropriate alternative to grid-connected water pumping. The aim of this paper is to assess the costs and benefits of adopting the SPVWPS using data from a field survey of 126 households. The findings show that use of the SPVWPS offers substantial benefits to adopters in the long run. In addition, government subsidy plays a major role in determining the payback period of adopters' investment in the scheme. The paper suggests that, alongside timely implementation of the scheme, the government should facilitate domestic manufacturing of solar cells and panels to fully harness social benefits of the SPVWPS.

Economic feasibility of solar irrigation pump in India: An insight from Andhra Pradesh

This paper attempts to examine the potential and utilisation of solar power with a special focus on solar powered irrigation system in India. The solar capacity has mostly concentrated in Southern and Western states but most of the states have not attained their solar power potential. Installation of the solar irrigation pump with state and central financial support is impressive in states like Rajasthan, Chhattisgarh and Andhra Pradesh. Further, the life cycle cost of solar photovoltaic (SPV) water pump and diesel pump was calculated based on the field survey data collected during 2019 from three districts of Andhra Pradesh. The capital cost of SPV pump per horsepower is 8 times higher than that of diesel pump but operation and maintenance cost of solar found to be significantly lower than that of diesel pump which is making solar powered irrigation system economically viable.

Suitability, sizing, economics, environmental impacts and limitations of solar photovoltaic water pumping system for groundwater irrigation-a brief review.

Irrigation is an essential part of agriculture which helps to sustain crop growth and increase food productivity. Most of the nations around the globe have adopted diesel fuel-based pumping units to irrigate their farm lands. However, increased fuel cost and strict emission laws have made these nations to look for alternate and clean energy powered pumping units. Solar water pumping units are more promising alternate to address these concerns. In this review work, types and concepts of available solar thermal and electric energy-based water pumping units are discussed. Suitability of solar PV pumping units in comparison to thermal energy-based units has been listed out. Detailed procedure for sizing solar PV pumping units by considering crop water requirement, head of pump, and local climatic conditions like solar radiation intensity and rainfall have been provided based on inputs from available literatures. In addition, step by step procedure to estimate economics and environmental impacts associated with solar PV water pumping units along with results of latest studies in these areas have also been presented. Solar PV water pumping units are highly recommended for regions with at least 300 to 400 mm rainfall per year and 2 km away from local grid power supply. Moreover, operation of solar PV water pumping units in on-grid mode can reduce its payback period significantly. Pumping cost associated with diesel units are 300.0% higher than solar PV units. Hence, solar PV water pumping units can be considered as an effective and sustainable option to irrigate farmlands. Advantages, limitations of solar PV water pumping, and strategies to improve its acceptability among farmers have also been provided.

Linear and Nonlinear Controllers of a Solar Photovoltaic Water Pumping System

This paper provided a comparative study between linear and nonlinear controllers of a solar photovoltaic (PV) water pumping system using an induction motor and a centrifugal pump. For linear controller, classical Perturb and Observe was selected to ensure the operation of the PV system at the maximum power point (MPP) and is combined with Indirect Rotor Field Oriented Control (IRFOC) based on a conventional proportional integral speed regulator chosen to control and to optimize the rotor speed. In second and third controllers, Backstepping and first order sliding mode controls were proposed for controlling the whole system. To regulate and optimize rotor speed in the nonlinear controller, all considered control techniques were combined with IRFOC in order to establish easy control laws. In addition, MPP was tracked by acting on the DC-DC converter and using its mathematical model for developing control laws. Maximum delivered power was used as reference signal for optimizing actual rotor speed. The controlled system is operated without mechanical sensors. Estimators of rotor speed and load torque disturbances were proposed based on the mathematical model of induction motor and centrifugal pump and using only available output measurements. Induction motor was supplied by a voltage source inverter controlled using a PWM technique. Stability based on Lyapunov functions of the closed-loop system was evaluated. Simulation results were investigated and reveal some very interesting features and the effectiveness of the nonlinear proposed strategies.

Studies on solar water pumping based micro-irrigation for sustainable vegetable cultivation

The growing demands of energy and water particularly in the present agricultural sector have necessitated the adoption of reliable, environment-friendly and water saving technologies so as to combat against the energy crisis and water stress in near future. It has been established that conventional sources of energy like oil, gas, coal etc. will not be able to provide the desired levels of energy security to mankind in foreseeable future. Hence, there is a global consensus for exploitation and utilization of different renewable energy resources. The search for new options should be eco-friendly as well as abundant in nature. Among the different available renewable energy resources, solar energy seems to be more promising and sustainable. Solar powered agricultural irrigation may be an attractive application for renewable energy in replacing fossil fuel powered irrigation devices to achieve energy security. The use of solar photovoltaic systems may provide good solution not only for all energy related problems of the present society but also perform excellently in terms of productivity, reliability, sustainability and environmental protection ability. Solar photovoltaic water pumping systems can provide water for irrigation without the need for any kind of fuel or the extensive maintenance as required by diesel and electric pump sets. Therefore, an attempt has been made to develop an affordable and portable solar PV water pumping system for irrigating vegetable crops in the state of Odisha. Micro-irrigation method through sprinkler system has been integrated with the solar PV device to achieve judicious utilization of water. Monthly income of Rs. 15,000/- throughout the year was possible by adopting remunerative tomato cultivation in 1 acre of land both during rabi and summer seasons in the year 2017 in coastal region of Odisha. Pay- back period of the developed set up was calculated to be only half year, due to which, it may be easily accepted by the small and marginal farmers of the state in spite of its high initial cost. The popularization of this technology would not only achieve assured water availability to the crops with improved water use efficiency measures by micro-sprinkler irrigation system compared to traditional flooded method of irrigation but also protect the environment against release of green house gases and noise pollution by the use of rising diesel and electric pump sets in the state.

Effect of head and PV array configurations on solar water pumping system

Nowadays, the photovoltaic (PV) to power the water pumps is a newly accepted technology with few challenges associated with high initial cost and lower system efficiency. The literature suggests the majorly of commercial pumps at present, underperform, due to poor system design, low efficiency and mismatch of components. In this paper Matlab Simulink model of a solar photovoltaic (PV) water pumping system (SPVWPS) has been created. Such a model; demonstrates the system characteristics under different operating parameters. This model can successfully and completely check the feasibility, size and optimize the system for its complete utilization. The effect of various parameters such as operating head of the pump, radiation, PV array configurations on the performance of the SPVWPS has been discussed and presented in the paper.

Linear and nonlinear controllers of a solar photovoltaic water pumping system

This paper provided a comparative study between linear and nonlinear controllers of a solar photovoltaic (PV) water pumping system using an induction motor and a centrifugal pump. For linear controller, classical Perturb and Observe was selected to ensure the operation of the PV system at the maximum power point (MPP) and is combined with Indirect Rotor Field Oriented Control (IRFOC) based on a conventional proportional integral speed regulator chosen to control and to optimize the rotor speed. In second and third controllers, Backstepping and first order sliding mode controls were proposed for controlling the whole system. To regulate and optimize rotor speed in the nonlinear controller, all considered control techniques were combined with IRFOC in order to establish easy control laws. In addition, MPP was tracked by acting on the DC-DC converter and using its mathematical model for developing control laws. Maximum delivered power was used as reference signal for optimizing actual rotor speed. The controlled system is operated without mechanical sensors. Estimators of rotor speed and load torque were proposed based on the mathematical model of induction motor and centrifugal pump and using only available output measurements.. Simulation results were investigated and the effectiveness of the nonlinear proposed strategies.

Development of grid‐interactive inverter utilising induction motor driven photovoltaic water pumping system

The stand-alone solar photovoltaic water pumping system (SPVWPS) remains idle for a significant period of time, when irrigation is not required and when sun is not available. Due to this large idle period, the effective utilisation of SPVWPS assets, i.e. solar photovoltaic array, power electronics converter, and motor, is poor. This study presents an approach to increase the effective utilisation of SPVWPS under the aforementioned idle period. It is proposed to interface the grid with SPVWPS without adding extra power electronic interface. An innovative integrated photovoltaic inverter is constructed using existing SPVWPS components. The inverter enables the transfer of active power and exchange of reactive power with the grid during an idle period of SPVWPS. The three legs of the voltage source inverter (VSI) are interleaved with motor windings. The VSI switches are controlled with synchronous pulse width modulation to force a cophasal current in the motor windings. This accompanies a net motor torque to zero under grid-interactive operation. Hence, the three-phase VSI operates as a single-phase grid synchronise converter, and the motor windings are used as filter inductance. The control system is presented to establish grid-interactive functionality. A prototype is developed to verify system performance. The control system is implemented using the ARM Cortex-M4 microcontroller.

Experimental investigations on the seasonal performance variations of directly coupled solar photovoltaic water pumping system using centrifugal pump

Optimum sizing and type of photovoltaic array configuration (PVAC) greatly affect the performance of solar photovoltaic water pumping system (SPVWPS). The electric power is decided considering the daily volume of pumped water and the total dynamic head at pumping site. In addition, however, the electric power output of PVAC also depends upon latitude, inclination angle of panel, and seasonal parameters like radiation and temperature, etc. In the present work, experimental investigations have been done to select the optimum PVAC to supply electric power to SPVWPS and effect of seasonal variations on its output. This has been done by investigating the performance of SPVWPS employing a direct current (DC) borehole centrifugal submersible pump along with different PVACs namely PVAC1 (4S × 2P), PVAC2 (5S × 2P), PVAC3 (7S), PVAC4 (8S), PVAC5 (3S × 2P) and PVAC6 (6S) at four pumping heads 2, 3, 4 and 5 bar. 4S × 2P indicates: 2 strings of photovoltaics (PV) module are connected in parallel where each string consists of 4 PV modules connected in series. Similarly, 8S indicates 8 PV modules are connected in series only. The seasonal variations in output of SPVWPS and selection of optimum PVAC have been done by testing in winter and summer seasons in the laboratory under the outdoor conditions of VNIT, Nagpur, India. Through the study, it can be concluded that PVAC2 (5S × 2P) delivered maximum discharge in winter season and PVAC4 (8S) in summer season at all pumping heads.

PKM PENERAPAN MAXIMUM POWER POINT TRACKER (MPPT) PADA SISTEM POMPA AIR SOLAR PHOTO VOLTAIC (SPV) UNTUK RW8 KELURAHAN ROWOSARI KOTA SEMARANG

Rowosari Urban Village is a village located in Tembalang District, Semarang City. The Rowosari Urban Village has an area of ​​719,577 Ha at an altitude of 47 m above sea level with an average rainfall of 2,000 mm / year, an average temperature of 300C. According to Purwoko, SH, Head of Rowosari Village, when met by the Community Partnership Program Team (PKM) in the Rowosari Kelurahan office, problems in Rowosari Kelurahan, especially in RW 8, one of which was the high electricity bill, especially for public facilities such as prayer rooms and low human resources (HR) ), therefore the purpose of this PKM is to reduce electricity bills and increase the human resources of the Rowosari Kelurahan, Tembalang District, Semarang City through training in the Implementation of the Maximum Power Point Tracker (MPPT) in the Water Pump System. To overcome the problems of partners especially the priority that must be addressed, the University of Semarang PKM team used a method with 3 stages of activities namely HR Enhancement through Solar Photo Voltaic (SPV) assembly training, Assistance in Solar Photo Voltaic (SPV) assembly, and Installation of electric pumps that produced from Solar Photo Voltaic (SPV). The results of this PKM activity are water pumps in wells in the RT.02 / RW mosque. 8 Kelurahan Rowosari has used a Solar Photo Voltaic Water Pump (SPV).

Adoption of renewable energy technologies (RETs) using a mixed-method approach

Purpose This paper aims to propose that the socio-technical perspective is under-represented when appraising the adoption potential of renewable energy technologies (RETs) in late-industrialising countries and that this results in under-adoption. It also aims to identify a methodological approach that allows the socio-technical perspective to be integrated into management decision-making, alongside the more typical economic appraisal methodology. Design/methodology/approach A case study and novel mixed-methodology approach is used, which applies the diffusion of innovations framework, innovation system (IS) framework and system dynamics modelling (SDM) alongside traditional economic modelling and appraisal techniques. This approach is used to assess the adoption potential of solar photovoltaic (PV) and diesel water pumping systems in the wildlife conservation sector and surrounding rural communities in Kenya. The case study approach tests the merits of the mixed-methodology approach. Findings The life-cycle costs of solar PV water pumping systems are lower in nearly all financing and utilisation scenarios; offer additional social, technical and environmental benefits; and the conditions exist for greater adoption. The use of an integrated diffusion of innovations and IS framework generates significant qualitative data that can support management decision-making. The use of SDM techniques aid conceptualisation of the community economic, water and institutional systems into which water pumps may be diffused and provide a starting point for formal SDM simulation. The results suggest that these techniques capture the socio-technical perspective well and, when used alongside traditional project appraisal approaches, produce more complete information with which to support management decision-making. Originality/value This mixed-methodology approach could be used by practitioners to increase the diffusion and adoption of RETs in more complex contexts in late-industrialising countries. The emergent theory built through the case-study approach should be tested further to assess the merits of applying these techniques to support RET management decision-making in other contexts and more broadly.

Investigation of Standalone Solar Photovoltaic Water Pumping System With Reduced Switch Multilevel Inverter

Solar photovoltaic powered water pumping systems are becoming very successful in regions where there is no opportunity for connecting the grid. The photovoltaic technology converts solar energy into electrical energy for operating DC or AC motor-based water pump. In the case of a solar AC motor water pump, it engages two energy conversion stages (DC-DC and DC-AC) in the power conditioning unit. This usually resulted in increased size, cost, complexity and decreases efficiency of the entire system. In addition, the existing two-level inverter (DC-AC) stage generates higher harmonics in output voltage that deteriorates AC motor performance. As a consequence, a single energy conversion stage with more than two-level output voltage could be possible by utilizing multilevel inverters which replaces two-level inversion stage easily to get higher levels of output voltages as well for extracting best results from the motor. Moreover, they can able to operate with reduced switching frequency that certainly reduces switching losses. Still, the increased voltage levels comprise a higher number of power semiconductor switches, cumulative voltage stress and switching losses are making the system more complicated. In this paper an innovative seven-level inverter with five switches had been taken to investigate 0.5 H. P single phase induction motor water pump. This topology ensures minimum switching losses, lowering size along with less installation cost. In order to provide better insight into the working and performance of this proposed topology the simulation results performed in the MATLAB / Simulink environment and hardware implementation are depicted.