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Design&Simulation of DC-DC Boost Type PWM based Solar Charge Controller for Constant Output Power under Partial Shading Conditions

Journal: International Journal of Science and Research (IJSR) (Vol.6, No. 2)

Publication Date:

Authors : ; ;

Page : 738-743

Keywords : DC-DC power converters; Maximum power point tracking; Photovoltaic systems; Microcontrollers; Solar charge controller;

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Solar energy is considered one of the major sources of renewable energy, available in abundance and also free of cost. Solar photovoltaic (PV) cells are used to convert solar energy into unregulated electrical energy. These solar PV cells exhibit nonlinear characteristics under partial shading conditions& gives inconsistent output& therefore, it becomes essential to extract Regulated energy using Solar charge controllers for this purpose DC-DC Boost type PWM based solar charge controller topology is presented In this topology PV module senses the Solar energy and send the respective voltage to the Charge controller Circuit, Parallel to that Microcontroller will generate PWM pulses which is continuously supplied to Booster Circuit& Booster circuit will remain ON- OFF according to duty cycle which is settable to get the required voltage level at the output side Booster Circuit, With this Booster circuit converters will convert the unregulated dc input into a controlled dc output at a desired voltage level under partial shading conditions also. The electrical energy is then continuously stored in the lead-acid battery. Booster circuit selected components are also verified with Proetus Simulation software& Also observed the changes in output of booster circuit when design parameters are changed in Circuit.

Last modified: 2021-06-30 17:48:27