基于逆变型分布式电源的电能质量管理研究

The Study on Power Quality Management with Inverter Based Distributed Source

太阳能光伏发电、蓄电池等逆变型分布式电源的主电路结构与电力有源滤波器类似,可以通过逆变器的控制在输出基波功率的同时对配电网的谐波进行管理,能够节省专门的电能质量管理设备投资,具有广阔的应用前景。研究基于逆变型分布式电源的电能质量管理方法的同时,提出了一种能够充分利用分布式电源能力,灵活选择谐波补偿水平,并从整体上提高配电网电能质量的管理方法。仿真结果证明了方法的有效性。

The main circuit structure of solar photovoltaic power generation,battery and other inverter based distributed sources is similar to that of active power filter. We can control the harmonic of distribution grid by controlling the inverter with the fundamental power output together,which could save investments of power quality management equipment and have a broad application prospect. This article puts forward a new method of power quality management based on distributed source inverter control,which can make full use of the capacity of distributed sources,choose harmonic compensation level flexibly,and enhance overall power quality of the distributed grid. The simulation results show the effectiveness of the proposed method.