Open AccessAnalysis of distributed power sources impact on distribution network voltage and reactive power optimization
Author(s) -
Di Gai,
Lv Jiaolong,
Su Yu,
Liu Chuanbo,
Yan Li,
Lishuai He,
Wen-Hong Zhu,
Tong Yongquan,
Shi Boyu,
Hui Chen,
Gang Hou,
Zhao Yuejun
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 - 10.1088/1755-1315/510/2/022021
Subject(s) - ac power , voltage optimisation , power (physics) , electric power system , computer science , voltage , power flow study , distributed generation , distributed power , voltage regulation , electronic engineering , electrical engineering , reliability engineering , engineering , physics , renewable energy , quantum mechanics
The grid connection of distributed power sources will greatly change the initial electrical state of the system. Therefore, it is necessary to do scientific research on the impact of grid connection of distributed power sources and take appropriate measures to improve system stability. Two evaluation indexes of average voltage change rate and average voltage fluctuation rate are established to describe the impact of different distributed power grids on voltage. The IEEE 33-node power distribution network is used as a model. The distributed power source is connected to the power distribution network with different capacities and different locations. Based on the calculation results of the power flow, the voltage distribution diagrams of the system under different states are drawn, and a comprehensive analysis is performed according to the formulated quantitative indicators. A genetic algorithm was used to search for the optimal reactive power output of a single power supply connected to the grid.