Title :
Design of SPLL for PV power system
Author :
Qin, Shihong ; Chen, Teng ; Wang, Min ; Yao, Xiangling
Author_Institution :
Sch. of Electr. & Inf. Eng., Wuhan Inst. of Technol., Wuhan, China
Abstract :
According to the principle of phase lock loop, a software phase lock loop (SPLL) for photovoltaic (PV) grid-connected power system has been designed, which used to decrease the phase differ between PV output current signal and utility voltage signal, so to make power factor close to l.For this kind of software phase lock loop, the implementation scheme is given in detail, and combine with the program flowchart, the realization of the scheme is explained. Under the condition of the laboratory, experiment is carried out. The results show that the proposed scheme has certain feasibility and availability.
Keywords :
phase locked loops; photovoltaic power systems; power factor; power grids; PV output current signal; PV power system; SPLL; photovoltaic grid-connected power system; power factor; program flowchart; software phase lock loop; utility voltage signal; Detectors; Frequency control; Inverters; Phase locked loops; Radiation detectors; Software; Voltage control; PV energy; SPLL; grid-connected;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6058080
