Open AccessThe Control Strategy of Three-Phase Unbalance Load in Low Voltage Distribution Networks Based on SVG
Author(s) -
Han Zhi,
Dong Wang,
Yuqing Jiang,
Zhu Wei,
Jianing Xu
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/510/2/022032
Subject(s) - scalable vector graphics , upstream (networking) , downstream (manufacturing) , computer science , matlab , generator (circuit theory) , compensation (psychology) , control theory (sociology) , power (physics) , real time computing , electronic engineering , control (management) , engineering , computer network , psychology , operations management , physics , quantum mechanics , artificial intelligence , psychoanalysis , operating system
For the three-phase imbalance management, this paper points out that the capacity of static var generator (SVG) can be configured based on smart meter measurement data, and the SVGs coordinated control strategy is used to compensate the three-phase imbalance load of the distribution network. Communication bus and coordinated control strategy are introduced in the proposed system. so that the SVG connected downstream of the low-voltage line can use the remaining capacity after compensating its downstream unbalanced current to sequentially compensate for the insufficient capacity of the upstream SVG. The low voltage problem of each node is further reduced by the reverse power flows from the downstream SVG to the upstream SVG. Simulations for actual effect evaluation of the proposed compensation system were done in Matlab/Simulink. Validity of the proposed system is confirmed by the simulation.