Open AccessResearch on Key Technologies of Intelligent Control Switches in Distribution Networks
Author(s) -
Guo Fu-sheng,
Weihan Zhou,
Yongqing Wang,
Yongzhi Su,
Wei Wu,
Weichao Li
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/770/1/012024
Subject(s) - inrush current , overvoltage , closing (real estate) , ac power , electrical engineering , circuit breaker , compensation (psychology) , voltage , power electronics , capacitor , key (lock) , power (physics) , computer science , electronics , engineering , transformer , psychology , physics , computer security , quantum mechanics , political science , law , psychoanalysis
With the development and widespread application of high-power power electronics technology, there is an interaction between distribution network voltage and reactive power and power quality. It is prone to operating over-voltage and closing inrush when closing, and reignition often occurs during opening. The voltage is too high, which far exceeds the voltage and insulation performance that the equipment can withstand, resulting in damage to the equipment. In response to the above problems, this article proposes an intelligent control switch closing and opening strategy to reduce the impact on the equipment during the reactive power compensation switching process. Considering the different dispersion of the intelligent control switch, the process of closing the parallel capacitor is simulated, and the effect of the intelligent control switch on the overvoltage and inrush current limitation is compared, which proves that the strategy is effective.