Application and Effect Analysis of Series Reactive Power Compensation in Low Voltage Distribution Network

Abstract

The load terminal voltage at the low voltage side of the distribution network will drop when the user load increases. Thereby affecting the normal operation of the electrical appliance. Currently, the treatment approach to the voltage deviation at the low voltage side of the distribution network is using the Parallel reactive power compensation technology. However, the compensation effect will decrease with the load increases. To solve the above problems, this paper proposes a method for applying series capacitor compensation to the low voltage side of the distribution network. Firstly, the principle of low voltage generation on the low-voltage side of the distribution network is derived. Then introduce the principle of series reactive power compensation method. And according to the actual parameters of the project, simulate the terminal voltage amplitudes and the line current under the different wire types and load rates. Finally, the improvement effect of series reactive power compensation on the low-voltage side power quality of distribution network is analyzed with simulation calculation. The results show that the proposed method has a good control effect on the power quality of the low-voltage side of the distribution network.