| 引用本文: | 刘敏,周晓霞,陈慧春,等.采用三相不可控整流充电机的电动汽车充电站
谐波放大效应分析与计算[J].电力系统保护与控制,2016,44(4):36-43.[点击复制] |
| LIU Min,ZHOU Xiaoxia,CHEN Huichun,et al.Analysis and calculation on harmonic amplification effect of electric vehicle charging station using three-phase uncontrolled rectification charger[J].Power System Protection and Control,2016,44(4):36-43[点击复制] |
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| 采用三相不可控整流充电机的电动汽车充电站
谐波放大效应分析与计算 |
| 刘敏,周晓霞,陈慧春,谢维兵,敬勇,王佳佳,魏能峤,周念成 |
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| (国网重庆市电力公司技能培训中心，重庆 400044;输配电装备及系统安全与新技术国家重点实验室，重庆 400044) |
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| 摘要: |
| 电动汽车充电站并联有源滤波器工作时，可能引起流过充电站集电母线的充电电流谐波出现放大效应。针对谐波污染最严重的三相不可控整流充电机，研究充电站各次谐波电流与谐波电压的耦合关系，定义电动汽车充电站总谐波电流放大系数，提出一种充电站集电母线电流谐波放大程度的量化方法。该方法实现了电流谐波放大效应的解析计算且具有较高精度。在此基础上，探讨谐波放大系数随充电机台数、有源滤波补偿率及相位差等因素的变化规律，为有源滤波器容量配置与控制设计提供依据。 |
| 关键词: 电动汽车 三相不可控整流 有源电力滤波器 谐波放大 集电母线 |
| DOI：10.7667/PSPC150755 |
| 投稿时间：2015-05-07修订日期：2015-09-14 |
| 基金项目:国家自然科学基金资助项目(51577018) |
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| Analysis and calculation on harmonic amplification effect of electric vehicle charging station using three-phase uncontrolled rectification charger |
| LIU Min,ZHOU Xiaoxia,CHEN Huichun,XIE Weibing,JING Yong,WANG Jiajia,WEI Nengqiao,ZHOU Niancheng |
| (Power Supply Bureau Skills Training Center of Chongqing, Chongqing 400044, China;State Key Laboratory of
Power Transmission Equipment & System Security and New Technology, Chongqing 400044, China) |
| Abstract: |
| In electric vehicle (EV) charging stations equipped with shunt active power filters (APFs), the operation of the shunt APF may amplify (harmonic amplification) the charging current harmonics at the point of power collection. This paper focuses on an EV charging station with three-phase uncontrolled rectification chargers that produces the most serious harmonic pollution. By analyzing the coupling relationship between harmonic current and voltage of EV charging stations, as well as by defining the total harmonic current amplification factor, this paper proposes an analytical method to quantify the amplification degree of charging current at the point of power collection. On this basis, the variation trends show how the amplification factor changes with key parameters, such as quantity of chargers, compensation rate, and compensation phase difference of APFs are discussed. The results are beneficial to gaining further understanding on capacity correction and control design of APFs in an EV charging station. |
| Key words: electric vehicle three-phase uncontrolled rectifier active power filter harmonic amplification point of power collection |
