Abstract：The gird-connected photovoltaic (PV) inverters usually operate in low utilization for diurnal variations and weather changes. A new strategy for three-phase grid-connected PV generation systems is proposed, which has the shunt active power filter function. The strategy is based on load-level judgment and load-type identification, whose synthetic methods of instruction current is given. The new strategy not only makes full use of PV power, but also compensates harmonics and reactive currents of the loads very well, especially when the loads are in low level. The system response speed would be improved quickly without harmonics current detection. The new configuration adopts the DC/DC/AC high frequency link main circuits, which overcomes the shortcoming of the power frequency transformer's serious supplies in the traditional PV gird-connected systems. With the modeling and simulation of the proposed control strategy by Matlab/Simulink, the experimental results show that the control strategy is validated.
杜春水, 张承慧, 刘鑫正, 陈阿莲. 带有源电力滤波功能的三相光伏并网发电系统控制策略[J]. 电工技术学报, 2010, 25(9): 163-169.
Du Chunshui, Zhang Chenghui, Liu Xinzheng, Chen Alian. Control Strategy on the Three-Phase Grid-Connected Photovoltaic Generation System With Shunt Active Power Filter. Transactions of China Electrotechnical Society, 2010, 25(9): 163-169.
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2010, Vol. 25 
