谐波条件下交流充电桩电能计量方法研究

Research on Energy Measurement Methods for AC Charging Stations under Harmonic Conditions

常规的交流充电桩电能计量方法主要使用PSO-PNN鸟群觅食行为随机优化算法获取最优计量解,易受PNN网络参数变化影响,导致电能计量偏差较高,因此,在谐波条件下,需要设计一种全新的交流充电桩电能计量方法。即在谐波条件下进行了充电桩电能计量数据去噪处理,设计了交流充电桩电能计量装置,从而完成了交流充电桩电能计量。实验结果表明,设计的交流充电桩电能计量方法计量的充电桩电流、电压值与实际值相差较小,证明设计的交流充电桩电能计量方法的计量效果较好,具有准确性,有一定的应用价值,为提高交流充电桩的电能计量信度,延长其使用寿命作出了一定的贡献。

The conventional electric energy measurement method for AC charging piles mainly uses PSO-PNN bird foraging behavior random optimization algorithm to obtain the optimal measurement solution,which is easily affected by changes in PNN network parameters,resulting in high deviations in electric energy measurement.Therefore,under harmonic conditions,it is necessary to design a new electric energy measurement method for AC charging piles.Under harmonic conditions,noise reduction was carried out on the electric energy measurement data of the charging station,and an AC charging station electric energy measurement device was designed,thus completing the electric energy measurement of the AC charging station.The experimental results show that the designed AC charging pile energy measurement method measures the charging pile current and voltage values with small differences from the actual values,proving that the designed AC charging pile energy measurement method has good measurement effect,accuracy,and certain application value.It has made a certain contribution to improving the reliability of AC charging pile energy measurement and extending its service life.