王海波.考虑混合储能荷电状态的独立光伏系统控制策略[J].电测与仪表,2016,53(15):. WANG Haibo.Control Strategy of the Stand-alone Photovoltaic System Considering SOC of the Hybrid Energy Storage System[J].Electrical Measurement & Instrumentation,2016,53(15):.
考虑混合储能荷电状态的独立光伏系统控制策略
Control Strategy of the Stand-alone Photovoltaic System Considering SOC of the Hybrid Energy Storage System
Stand-alone photovoltaic (PV) system with hybrid energy storage system (HESS) including battery and super-capacitor can filter the fluctuating power，balance the energy and improve the power quality． A novel energy management scheme of the HESS and a control strategy for the Buck/Boost bidirectional converter are proposed when considering SOCs of the battery and super-capacitor．The energy management scheme can keep SOCs reasonable when the micro-grid works normally．The control strategy can guarantee the battery charge and discharge with stepped current， and it contains the function of over charge and discharge protection and can achieve fast and stable control of the DC bus voltage．Each part of the stand-alone PV system is modeled； and results of the simulation show the effectiveness of the proposed energy management and control strategy．
