Title :
A grid connected photovoltaic system with irradiation injected current control
Author :
Wang, J.B. ; Chen, Joe ; Li, Ronald
Author_Institution :
Dept. of Electr. Eng., Ching Yun Univ. of Technol.
Abstract :
A grid connected photovoltaic (PV) system, which consists of PV modules, a boost converter with maximum power point tracking (MPPT) controller and a current controlled full bridge inverter with L-C-L filter, is presented in this paper. A simple PIC16F877 microprocessor is used to implement the InCond MPPT controller by adjusted the duty ratio of the boost converter. Then a DC bus voltage controller is designed to regulate the DC bus voltage within the specified voltage, and generated the injected current command in proportion to the sunlight irradiation. Finally, a 150 W prototype grid connected PV system was built to demonstrate the performance of the proposed control schemes. In addition, some simulations and experimental results are also provided.
Keywords :
photovoltaic cells; photovoltaic power systems; power convertors; DC bus voltage controller; L-C-L filter; PV modules; boost converter; current controlled full bridge inverter; grid connected photovoltaic system; irradiation injected current control; maximum power point tracking controller; Bridge circuits; Control systems; Current control; Filters; Inverters; Microprocessors; Photovoltaic systems; Proportional control; Solar power generation; Voltage control; MPPT; PV system; inverter;
Conference_Titel :
Power Electronics, 2007. ICPE '07. 7th Internatonal Conference on
Conference_Location :
Daegu
Print_ISBN :
978-1-4244-1871-8
Electronic_ISBN :
978-1-4244-1872-5
DOI :
10.1109/ICPE.2007.4692423
