分布式电源并网负载特性对电能计量的影响研究

Research on the effect of the distributed power grid-connected load property on electric energy metering

分布式电源并网具有双方向潮流和宽量程负荷变化、具有向电网注入直流分量以及谐波分量等负载特性,因此,传统计量装置在分布式电源并网环境下适应性有待研究。分别针对分布式电源并网双方向宽量程计量问题、直流分量对电流互感器影响和谐波分量计量算法在分布式电源并网下的适应性进行研究分析。

With the load property of two sides to the tide and wide range of load change,and also the DC component and harmonic component has been injected into the distributed power grid,so the adaptability of traditional metering device in the distributed power grid-connected environment need to be researched. The following questions were respectively discussed in this paper,such as two sides and wide range measurement issues,the influence of the current transformer from DC components,and the adaptability of harmonics measurement algorithm in the distributed power grid.