Title :
Design of Three-Phase Stand-Alone PV Generation System with Unbalanced Loads
Author :
Wu, Chun-sheng ; Liao, Hua ; Yang, Zi-long ; Wang, Yi-bo ; Xu, Hong-hua
Author_Institution :
Key Lab. of Solar Thermal Energy & Photovoltaic Syst., Chinese Acad. of Sci., Beijing, China
Abstract :
A three-phase stand-alone PV generation system with unbalanced loads is designed in this paper. The main circuit topology of half-bridge inverter is adopted. Through a LC filter and transformer, local loads are supplied. After analyzing the produce reason of unbalanced voltage, a simple control strategy based voltage single loop is proposed, which makes the three-phase stand-alone PV generation system have the ability against unbalanced loads. Finally a 10kVA prototype is established in laboratory to verify the feasibility of this scheme.
Keywords :
invertors; network topology; photovoltaic power systems; power filters; power transformers; LC filter; apparent power 10 kVA; circuit topology; half-bridge inverter; power transformer; three-phase stand-alone PV generation system; unbalanced loads; unbalanced voltage; voltage single loop; Inverters; Laboratories; Presses; Pulse width modulation; Uninterruptible power systems; Voltage control; PV generation system; control strategy; inverter; unbalanced loads;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6880-5
DOI :
10.1109/iCECE.2010.1246
