Title :
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
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;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2014 IEEE
Conference_Location :
Pittsburgh, PA
DOI :
10.1109/ECCE.2014.6953741
