Title :
Control strategy of AC-DC matrix converter in battery energy storage system
Author :
Feng, Bo ; Lin, Hua ; Hu, Sanying ; An, Xing ; Wang, Xingwei
Author_Institution :
State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
This paper is focus on the application of a AC-DC matrix converter (MC) in the battery energy storage system (BESS). The converter topologies of the energy storage system are discussed. A combined control strategy of the AC-DC based BESS is proposed according to the modulation method. At the battery side, the constant current/voltage charging and constant current discharging control are utilized to meet the current-voltage characteristic of the battery and prolong its lifetime. At the grid side, the reactive power control is realized by a simple closed-loop control of the power factor angle. The controller designs are analyzed in detail. An experimental prototype is implemented for evaluation. The results indicated the good dynamic and steady-state performance of the control strategy. The feasibility of using the AC-DC MC in the energy storage application is well verified.
Keywords :
AC-DC power convertors; closed loop systems; constant current sources; control system synthesis; energy storage; matrix convertors; power factor; power grids; reactive power control; reliability; secondary cells; AC-DC MC; AC-DC matrix converter control strategy; BESS; battery energy storage system; battery lifetime; closed loop control; constant current charging control; constant current discharging control; constant voltage charging control; controller designs; converter topologies; current-voltage characteristics; dynamic performance; modulation method; power factor angle; power grid; reactive power control; steady-state performance; Batteries; Modulation; Power harmonic filters; Reactive power; Transfer functions; Voltage control;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2012 IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
978-1-4673-0802-1
Electronic_ISBN :
978-1-4673-0801-4
DOI :
10.1109/ECCE.2012.6342452
