空间矢量脉宽调制下有源电力滤波器直流侧电压设定值研究  

Research on Setting Value of DC-side Voltage for Active Power Filter Under Space Vector Pulse Width Modulation Control

作　　者：朱宁辉 白晓民[2] 董伟杰[2] 周子冠[3] 

机构地区：[1]中电普瑞科技有限公司,北京市昌平区102200 [2]中国电力科学研究院,北京市海淀区100192 [3]国网电力科学研究院通信与用电技术分公司,北京市昌平区102200

出　　处：《电网技术》2013年第2期568-574,共7页Power System Technology

摘　　要：关于有源电力滤波器直流侧电压的研究主要集中在如何实现电压的稳定控制,很少有人研究直流侧电压能够满足条件的最小值。为此针对直流侧电压具体设定值这一问题,借鉴逆变器电压利用率的概念,分别计算了三角波电流比较方式和空间矢量脉宽调制控制下的直流电压利用率,并计算出两者的差值。为计算空间矢量脉宽调制控制下直流电压所需满足的条件,分别推导了单相和三相有源电力滤波器直流侧电压作用机理的数学公式,最后得到了直流侧电压的计算公式。通过大量仿真计算,统计出最佳直流侧电压变动范围,与理论计算出的值基本一致,验证了理论推导的合理性。The research on DC-side voltage of active power filter（APF） are focused on how to implement the stable control of the voltage,and the minimum value of DC-side voltage of APF,by which the conditions could be met,is seldom researched.Allusion to the concrete setting of DC-side voltage of APF,referencing to the concept of voltage utilization ratio for inverters the DC-side voltage of APF under triangular PWM control and that under space vector pulse width modulation（SVPWM） control are calculated respectively,and then the difference between the two calculation results are attained.To determine conditions to be satisfied for the calculation of DC-side voltage of APF under SVPWM control,mathematical formulae describing the mechanism of action of DC-side voltages of single-phase and three-phase APFs are derived respectively,and finally the calculation formula for DC-side voltages of APF is obtained.Through a lot of simulation,the statistical optimal variation range of DC-side voltages of APF that basically copes with the result of theoretical calculation is achieved,thus the reasonableness of theoretical derivation is verified.

关 键 词：有源电力滤波器 空间矢量脉宽调制 直流侧电压 电压利用率 

分 类 号：TM714.2[电气工程—电力系统及自动化]