基于PPF的配网谐波治理仿真研究

Simulation Research on the Distribution Netwrok Harmonic Control Based on PPF

为了降低谐波对电网的不良影响,借助Matlab软件,搭建配网模型和谐波源模型,并利用电力无源滤波器对配网谐波进行治理研究,采用功率因数法和最小滤波电容安装法来设置滤波器的电力参数,通过Simulink仿真,都达到了比较好的谐波治理效果,在此基础上提出了考虑配网背景谐波的改进型最小滤波电容安装法,通过仿真发现配网的总谐波畸变率和含有率更小,达到了更好的谐波治理效果,而且更经济。在滤波器设计中应充分考虑交流系统背景谐波和系统阻抗对谐波治理效果的影响,这会使谐波治理的效果更好,更经济。

With the help of Matrix Laboratory software, this paper build a distribution network model of harmonious waves, and use the passive power filter to governance research of distribution network harmonic, power factor method and minimum filtering capacitor installation method is used to set the filter of electricity parameters, by Simulink simulation, has achieved a good result for harmonic governance, based on this put forward considering the distribution network background harmonic modified minimum filter capacitor installation method, the simulation found that the distribution network of a smaller total harmonic distortion rate and the containing rate, achieved better effect of harmonic governance, and more economical. In the filter should be fully considered in the design of communication system background harmonic and the effects of the system impedance to harmonic governance will make harmonic treatment effect is better,more economic.