单相宽量程充电桩无功响应能力检测方法

Detection method of reactive power response ability of single-phase wide range charging pile

为增加无功响应充电过程中的调峰容量,缩短充电桩的响应振荡时间,提出一种单相宽量程充电桩无功响应能力检测方法。确定充电桩计量装置的方式,研究无功响应的补偿量,以此为依据建立唯一的分析函数,实现单相宽量程充电桩的无功响应分析。确定无功电压的控制目标,再根据补偿检测器的伏安特性判定数据,计算完整的检测补偿结果,实现单相宽量程充电桩无功响应能力检测方法。模拟对比实验结果表明,与MATLAB检测方法相比,应用新型检测方法后,单相宽量程充电桩无功响应调峰容量的平均值得到有效提升,充电响应振荡时间基本维持在100~225 ms之间,远低于理想数值区间。

In order to increase the peak shaving capacity of reactive power response charging process and shorten the response oscillation time of charging piles,a method for detecting reactive power response capacity of single-phase wide-range charging piles is proposed. The method of measuring device for charging pile is determined,and the compensation amount of reactive power response is studied. Based on this,the only analysis function is established to realize the reactive power response analysis of singlephase wide-range charging pile. The control target of reactive power and voltage is determined,and then according to the volt-ampere characteristic of compensation detector,the complete detection and compensation results are calculated to realize the detection method of reactive power response ability of single-phase wide-range charging pile. The simulation results show that,compared with the MATLAB method,the average peak-shaving capacity of reactive power response of single-phase wide-range charging piles can be improved effectively by using the new method. The oscillation time of charging response basically maintains between 100~225 ms,which is far below the ideal value range.