Title :
Active-Power Control of Individual Converter Cells for a Battery Energy Storage System Based on a Multilevel Cascade PWM Converter
Author :
Maharjan, Laxman ; Yamagishi, Tsukasa ; Akagi, Hirofumi
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
fDate :
3/1/2012 12:00:00 AM
Abstract :
The battery energy storage system is an essential enabling device of the smart grid, because it helps grid connection of massive renewable energy resources. This paper has a brief discussion on a battery energy storage system based on a multilevel cascade pulsewidth-modulated (PWM) converter for its practical use. The active-power control of individual converter cells is presented to make it possible to charge and discharge the battery units at different power levels while producing a three-phase balanced line-to-line voltage. This results in the maximum utilization of battery energy even when the power-handling capabilities of the battery units differ. Experimental results obtained from a 200-V, 10-kW, 3.6-kWh battery energy storage system verify the effectiveness of the presented active-power control.
Keywords :
PWM power convertors; battery management systems; battery storage plants; power control; power system interconnection; renewable energy sources; smart power grids; PWM converter; active power control; battery energy storage system; converter cells; multilevel cascade converter; power 10 kW; pulsewidth modulation; renewable energy resources; smart grid; Batteries; Control systems; Energy storage; Pulse width modulation; Pulse width modulation converters; Renewable energy resources; Smart grids; Solar energy; Voltage control; Wind energy; Active-power control; battery energy storage systems; multilevel cascade converters; neutral shift;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2010.2059045
