Title :
Variable Frequency Current-Source Inverter for Grid-Connected PV System
Author :
Yu, Rongrong ; Wei, Xueye ; Wu, Xiaojin
Author_Institution :
Sch. of Electron. & Inf. Eng., Beijing Jiaotong Univ., Beijing, China
Abstract :
A current-source inverter with variable frequency is proposed for the grid-connected photovoltaic generation system in order to improve power quality, reduce current harmonics and decrease the frequency of switches. Besides applying energy to grid in the form of alternative current output using full-bridge switches, this topological structure can also complete maximum power point tracking by changing the duty ratio. The variable frequency current-source switch is controlled by PWM algorithm, and it is proved by computer simulation.
Keywords :
PWM invertors; constant current sources; photovoltaic power systems; power grids; power supply quality; PWM algorithm; computer simulation; current harmonics; current source inverter; current source switch; full bridge switches; grid-connected photovoltaic generation system; maximum power point tracking; power quality; variable frequency; Frequency; Mesh generation; Photovoltaic systems; Power generation; Power quality; Power system harmonics; Pulse width modulation; Pulse width modulation inverters; Solar power generation; Switches; Computer simulation; Current-source inverter; PWM; Variable frequency;
Conference_Titel :
Energy and Environment Technology, 2009. ICEET '09. International Conference on
Conference_Location :
Guilin, Guangxi
Print_ISBN :
978-0-7695-3819-8
DOI :
10.1109/ICEET.2009.328
