Research of multipurpose optimization control in hybrid energy storage system

Author

Wei Jiang ; Renjie Hu ; Wu Chen ; Xiaodong Wang ; Zhong Li ; Yongbiao Yang ; Jinming Wang

Author_Institution

Dept. of Electr. Eng., Southeast Univ., Nanjing, China

fYear

2014

fDate

14-18 Sept. 2014

Firstpage

2550

Lastpage

2554

Abstract

Supercapacitor/battery hybrid energy storage system (HESS) is an effective way to suppress power fluctuation of photovoltaic power generation system during radiation change. First, the topology of HESS and its connection with photovoltaic system are analyzed. The power output reference of HESS is achieved by low-pass filtering with variable time constant. Second, to optimize HESS energy loss and SOC of supercapacitor, a linear weighted summation algorithm based on variable weights is proposed. The multi-objective optimization problem is constructed and solved to obtain current reference of supercapacitor and battery. Simulation and experiment results verified the proposed algorithms and control strategy.

Keywords

AC-DC power convertors; DC-DC power convertors; invertors; photovoltaic power systems; power generation control; secondary cells; supercapacitors; energy loss; linear weighted summation algorithm; multipurpose optimization control; photovoltaic power generation system; power fluctuation; state-of-charge; supercapacitor-battery hybrid energy storage system; Batteries; Optimization; Photovoltaic systems; Supercapacitors; System-on-chip;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2014 IEEE

Conference_Location

Pittsburgh, PA

Type

conf

DOI

10.1109/ECCE.2014.6953741

Filename

6953741