Title :
A Multi-Directional Power Converter for a Hybrid Renewable Energy Distributed Generation System with Battery Storage
Author :
Qiang, Mei ; Wei-yang, Wu ; Zhen-lin, Xu
Author_Institution :
Tianjin Univ.
Abstract :
Power electronics is the key technology for enabling renewable power generation and dispatching distributed generation (DG) with improved load-side efficiency. This paper presents a multi-directional power converter with a high-frequency isolation transformer for a stand-alone hybrid renewable energy DG system with battery storage. Full-bridge power converters are employed to realize bi-directional power flow among renewable generator, battery storage and load. Detailed analysis is provided for a four-directional power converter in a wind-photovoltaic distributed generation system. In addition, a two loop PI control scheme is proposed to achieve constant output voltage and exact power flow management. Theoretical analyses are verified by simulations in PSPICE and MATLAB
Keywords :
PI control; SPICE; battery storage plants; distributed power generation; hybrid power systems; load flow; mathematics computing; photovoltaic power systems; power convertors; power engineering computing; wind power plants; MATLAB; PSPICE; battery storage; full-bridge power converters; high-frequency isolation transformer; multidirectional power converter; power flow management; stand-alone hybrid renewable energy; two loop PI control scheme; wind-photovoltaic distributed generation system; Batteries; Dispatching; Distributed control; Distributed power generation; Energy storage; Isolation technology; Load flow; Power electronics; Power generation dispatch; Renewable energy resources; high-frequency isolation; multi-directional power converter; power flow control; renewable distributed generation;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4778337
