DocumentCode :
2583738
Title :
Control of a six-switch inverter based single-phase grid-connected PV generation system with inverse Park transform PLL
Author :
Wang, Zheng ; Fan, Shouting ; Zheng, Yang ; Cheng, Ming
Author_Institution :
Sch. of Electr. Eng., Southeast Univ., Nanjing, China
fYear :
2012
fDate :
28-31 May 2012
Firstpage :
258
Lastpage :
263
Abstract :
This paper designs and analyzes the switching strategy and control schemes for a six-switch grid inverter based single-phase photovoltaic (PV) power generation system. Such six-switch PV grid inverter not only offers good grid current performance, but also enables low leaking current for the transformerless grid-connected PV system. With the inverse Park transform based PLL technique, the proposed control scheme in this paper can adapt the change in grid voltage and frequency effectively. Meanwhile, the PV power generation system can switch between the single-stage operation and the two-stage operation modes by controlling the boost converter, which links the PV modules and the grid inverter. The experiments on a 1.5kW laboratory setup have verified the good system performance in the steady-state operation, the starting process, the PV curve change, the operating mode switching, and the grid frequency adaptation.
Keywords :
invertors; photovoltaic power systems; power convertors; power grids; power system control; PV power generation system; boost converter; grid frequency adaptation; inverse park transform PLL; power 1.5 kW; single-phase grid-connected PV generation system; single-phase photovoltaic power generation system; single-stage operation modes; six-switch PV grid inverter; six-switch grid inverter; six-switch inverter control; transformerless grid-connected PV system; two-stage operation modes; Inverters; Phase locked loops; Power generation; Switches; Transforms; Voltage control; Voltage measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics (ISIE), 2012 IEEE International Symposium on
Conference_Location :
Hangzhou
ISSN :
2163-5137
Print_ISBN :
978-1-4673-0159-6
Electronic_ISBN :
2163-5137
Type :
conf
DOI :
10.1109/ISIE.2012.6237094
Filename :
6237094
Link To Document :
بازگشت