Title :
DC bus regulation strategy for grid-connected PV power generation system
Author :
Chen, Yaow-Ming ; Wu, Hsu-Chin ; Chen, Yung-Chu
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei
Abstract :
A novel DC bus regulation strategy for grid-connected PV power generation system is proposed in this paper. The power flow of the grid-connected PV power generation system is introduced first. The operational principles of different DC bus regulation strategies are presented. The mathematical equations for the current command adjustment of the injected AC line current are derived. The proposed DC bus regulation strategy can mitigate the AC line current variation, improve the power quality of AC mains, reduce the size of the DC-link capacitor, and increase the reliability of the grid-connected PV power generation system. Experimental results are presented to verify the performance of the proposed DC bus regulation strategy.
Keywords :
photovoltaic power systems; power grids; power supply quality; DC bus regulation strategy; current command adjustment; grid-connected PV power generation system; injected AC line current; power quality; Capacitors; Circuit topology; Costs; DC-DC power converters; Inverters; Photovoltaic systems; Power generation; Power quality; Power system reliability; Voltage; DC bus voltage; grid-connected PV power system; power quality;
Conference_Titel :
Sustainable Energy Technologies, 2008. ICSET 2008. IEEE International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-1887-9
Electronic_ISBN :
978-1-4244-1888-6
DOI :
10.1109/ICSET.2008.4747047
