A Control Method for Grid-friendly Photovoltaic Systems with Hybrid Energy Storage Units
This paper proposed a systematic control strategy to make the interconnected photovoltaic (PV) systems more gridfriendly.The investigated PV system comprises PV arrays,leadacid battery,super-capacitor,DC/DC and DC/AC power converters.In order to make this system work as a classical generator to participate in grid regulation,the constant active/reactive power control is implemented in the controller of the DC/AC converter which connects the DC bus of the PV system and the main grid.The DC bus voltage is coordinately controlled by super-capacitor and battery.The maximum power point tracking (MPPT) control is applied to extract maximum power from PV panels.The power management scenarios for the interconnected PV system were discussed and the experiment results were given to validate the feasibility of the proposed control strategy as well.
Photovoltaic:grid-connected:super-capacitor battery:power management
Zhixue Zheng Xiaoyu Wang Yongdong Li
State Key Lab of Power Systems,Department of Electrical Engineering,Tsinghua University Beijing,China
国际会议
威海
英文
1437-1440
2011-07-06（万方平台首次上网日期，不代表论文的发表时间）