改进型无源滤波器在电动汽车充电机谐波治理上的应用研究  

Applied Research of Improved Passive Power Filter on Harmonic Suppression of Electric Vehicle Charger

作　　者：吴凯[1] 程启明[1] 王鹤霖[1] 白园飞[1] 赵晋斌[1] 

机构地区：[1]上海电力学院自动化工程学院,上海200090

出　　处：《电测与仪表》2014年第7期94-100,共7页Electrical Measurement & Instrumentation

基　　金：上海市科委能力建设项目(11510500800);上海市教委重点学科建设项目(J51301)

摘　　要：电动汽车充电机是非线性很强的负载,接入系统会给电网带来较大的谐波污染,研究充电机的谐波治理装置对今后大规模充电站的建设具有重要意义。针对6脉波不控整流充电机的谐波分析模型,提出一种基于基波谐振原理、基波磁通补偿原理和传统无源滤波器相结合的滤波改进方法,该方法将基波谐振电路和基波单绕组变压器串联在电源与无源滤波器之间。MATLAB/Simulink仿真结果表明,改进的滤波方法在充电站负荷较大的情况下也能使电网电流和电压波形正弦化,大大提高了传统滤波器的滤波效果。As a kind of strongly nonlinear load, electric vehicle charger brings harmonic pollution to the grid when it is connected to the grid. Therefore, the study on harmonic suppression device is of great significance for future largescale chargerconstruction. Considering the harmonic simulation model of 6-plus uncontrolled rectifier, the paper proposesa new improved filtering method, whichis based on the combination of fundamental resonance principle, fundamental magnetic flux compensation principle and traditional passive filter. In the method, fundamental resonance circuit and fundamental single-winding transformer are connected in series between the power supply and the passive filter. MATLAB/Simulink simulation results show that the improved filtering method can achievesinusoidal grid current and grid voltage waveforms evenwhen charging station load is very high, thereforegreatly improves the filtering effect of the traditional filter.

关 键 词：电动汽车充电机 基波谐振 基波磁通补偿 无源滤波 

分 类 号：TM76[电气工程—电力系统及自动化]