Design and Development of MPPT Charge Controller with Inductor less Convertor and Linear Power Supply for Solar Photo voltaic power generation System

Abstract

The present research deals with design and development of low cost, durable, newlineand energy efficient Maximum Power Point Tracking Charge Controller for solar newlinephotovoltaic power generation system. Two topologies were developed to harvest newlinemaximum power namely, LPS charge controller and maximum power point tracking newline(MPPT) charge controller. To assess the performance of developed system, newlineexperiments were conducted with different load with 100 Wp, 200 Wp, 300 Wp, 400 newlineWp, 550 Wp, 750 Wp, and 1000 Wp solar photovoltaic power generation system in newlineboth summer and winter season. Developed MPPT charge controller increase the newlinepower output by 2 to 9 per cent during summer season whereas it was 2 to 11 per cent newlinein winter season. The solar power output specially enhanced during low solar newlineintensity days using MPPT charge controller and also increase the battery life. newlineFurther, battery charging and discharging test was also conducted and found that newlinebattery charged using MPPT charge controller required less time to charge at desire newlinevoltage and stay charge for long duration as compared to battery charged using linear newlinepower supply charge controller. newlineThe cost of developed MPPT charge controller was estimated about Rs. 1500/. newlineThe net present worth, benefit cost ratio, pay-back period and internal rate of return of newlinedeveloped MPPT charge controller with 1000 Wp solar photovoltaic power newlinegeneration system were estimated about Rs. 3321/-, 3.21, 1 year and 4 months and 64 newline% respectively. In addition to more power generation, developed charge controller is newlinein position to reduce about 672 kg of CO2 emission with 1000 Wp panel in 5 years. Contd.... newline