Title :
DC-link voltage optimization for SOC balancing control of a battery energy storage system based on a 7-level cascaded PWM converter
Author :
Chanhom, Peerapon ; Sirisukprasert, Siriroj ; Hatti, Natchpong
Author_Institution :
Dept. of Electr. Eng., Kasetsart Univ., Bangkok, Thailand
Abstract :
This paper proposes a new DC-link voltage optimization method for SOC balancing control of a battery energy storage system based on a 7-level cascaded PWM converter. Factors used for minimizing an exceeding utilization of DC-link voltage by rated power operating during SOC balancing are analyzed and presented. The proposed individual SOC balancing control and leveled SOC balancing control are developed. To verify the effectiveness of the proposed method, the mathematical model of the battery energy storage system has been developed and simulated. The major simulation results have consistently indicated the validity and effectiveness of the proposed method.
Keywords :
PWM power convertors; battery storage plants; mathematical analysis; system-on-chip; 7-level cascaded PWM converter; DC-link voltage optimization method; DC-link voltage utilization; SOC balancing control; battery energy storage system; dc-link voltage optimization; mathematical model; rated power operating; state of charge; Automatic voltage control; Batteries; Discharges (electric); Pulse width modulation converters; System-on-a-chip; BESS; Cascaded PWM Converter; SOC Balancing Control; Zero-Sequence Voltage Injection;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2012 9th International Conference on
Conference_Location :
Phetchaburi
Print_ISBN :
978-1-4673-2026-9
DOI :
10.1109/ECTICon.2012.6254348
