Title :
A multi-mode photovoltaic power generation system based on DC bus
Author :
Guanjian Wang ; Pengfei Li ; Yuling Li ; Xiaokun Wang
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
A multi-mode photovoltaic (PV) power generation system based on DC bus is proposed to reduce the impact of mismatching PV strings. By the control of mode switches, the system can change flexibly among three PV systems: central PV system, string PV system and hybrid PV system. Through this method, the system can generate more power and the efficiency will be improved. In addition, in central PV system, the application of interleave technique can reduce the ripple of PV strings´ currents. Simulation and experimental results verify the feasibility of the proposed system structure.
Keywords :
busbars; hybrid power systems; photovoltaic power systems; power generation control; DC bus; PV string currents; central PV system; hybrid PV system; interleave technique; mode switches; multimode PV power generation system; multimode photovoltaic power generation system; string PV system; Arrays; Control systems; Inductors; Photovoltaic systems; Resistance; Transfer functions;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7013586
