摘要
分析了有源滤波器与无源滤波器的工作原理,针对独立小容量电网频率波动范围大、系统阻抗不可忽略且脉冲型谐波对系统影响大的特点,提出使用有源滤波器作为独立小容量电网的滤波手段。Matlab仿真验证了有源滤波器在独立小容量系统谐波抑制中的正确性和有效性,选用柴油机作为小容量电源带谐波负载进行实验测量分析,结果表明有源滤波器作为小容量系统的滤波手段,能够有效滤除谐波。
Analysis was made to the working principles of active power filter and reactive power filter. Aiming at features that the indepen- dent small capacity power network had large frequency fluctuation, the system impedance couldn＇t be neglected and the pulse harmonics had large impacts on the system, this paper raised taking the active power filter as filtering measures for independent small capacity network. Matlab software simulation has verified the correctness and validity of active power filter in harmonic suppression of independent small capacity system. The diesel engine was selected as small capacity power with harmonic load to carry out experimental measurement analysis. The result shows that the active power filter as filtering measures for small capacity system can effectively filter out harmonic waves.
出处
《电工电气》
2013年第4期20-23,48,共5页
Electrotechnics Electric
关键词
独立小容量电网
谐波抑制
无源滤波器
有源滤波器
independent small capacity power network
harmonic suppression
reactive power filter
active power filter
