Resistance capacitive inverter allocation method based on fast reactive support based on Microgrid

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Xia, Fei^1 ; Xia, Zongze^1 ; Di, Zhuo^1 ; Yang, Zhixiong^2 ; Huang, Xiaobo^1 ; Song, Li^1

State Grid Liaoyang Electric Power Supply Company, Liaoyang

111000, China^1

Kunming Institute of Physics, Kunming

650223, China^2

关键词: Allocation methods;    Connection points;    Low voltage microgrid;    Reactive power support;    Resistance capacitance;    Resonant inverters;    Voltage distortions;    Voltage fluctuations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/4/042149/pdf
DOI  :  10.1088/1755-1315/170/4/042149

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In the low voltage microgrid multi inverters parallel system, the sudden change of load will lead to voltage fluctuation in the microgrid, and the fast reactive power support capability of the inverter is a necessary way to maintain voltage stability. By introducing resistance capacitance virtual complex impedance into inverter output current feedback, a fast reactive power support RC inverter inverter and its parallel power allocation method are proposed in this paper. The equivalent output impedance of the inverter is designed into resistive and capacitive, can be realized in the micro grid support fast reactive power public connection point, so as to keep the system voltage stability, and can inhibit the resonant inverter output impedance and the impedance between, to further reduce the voltage distortion. The effectiveness of the control method is verified by simulation and experiment.