Elastic Operation of High Voltage Distribution Network for Urban Power Grid Robust Restoration Under Physical Attacks

2019 ◽  
Author(s):  
Xi Zhang ◽  
Xinran Yang ◽  
Youbo Liu ◽  
Junyong Liu ◽  
Qing Wang ◽  
...  
Keyword(s):  
High Voltage ◽  
Power Grid ◽  
Distribution Network ◽  
Voltage Distribution

2-Staged Reconstruction Optimization for High Voltage Distribution Network Based PSO Algorithm

2012 ◽  
Vol 516-517 ◽  
pp. 1503-1507
Author(s):  
Gui Hua Yuan ◽  
Lin Li ◽  
Jun Li ◽  
Zhi Jian Hu ◽  
Xiao Bo Li ◽  
...  
Keyword(s):  
High Voltage ◽  
Optimization Model ◽  
Distribution Network ◽  
Pso Algorithm ◽  
Fault Isolation ◽  
Voltage Distribution ◽  
Actual Distribution ◽  
Operation Conditions ◽  
Network Losses ◽  
Staged Reconstruction

High voltage distribution network is an important link between transmission and middle voltage distribution network. If a high voltage distribution network fault occurs, the economy and reliability of the whole city distribution system will be seriously affected. To solve this problem, a traditional reconstruction optimization model is improved and a 2-staged reconstruction optimization model is proposed based on an improved particle swarm optimization (PSO) algorithm. The first stage reconstruction only considers the economic goal and the second stage reconstruction needs consider the boundary constrains. The 2-staged method considers the economic benefit and the voltage quality simultaneously. It can achieve the multi goals: meeting actual boundary operation conditions, optimizing the combination of network losses and the number of operation switching. The fault isolation and reconfiguration of an actual distribution network system in Dezhou power grid were simulated. Simulation results validate the rationality and feasibility of the proposed method

scholarly journals Application of Dispersed Autonomous Voltage Control System to a Real High Voltage Distribution Network

2002 ◽  
Vol 122 (12) ◽  
pp. 1252-1261 ◽  
Author(s):  
Katsuki Kabemura ◽  
Kazuhiko Yonekura ◽  
Takanori Tsukamoto ◽  
Keiichirou Hashimoto ◽  
Masanori Hara
Keyword(s):  
Control System ◽  
High Voltage ◽  
Distribution Network ◽  
Voltage Control ◽  
Voltage Distribution

Study on the Sensitivity of Selective Leakage Protection of Different Ground of Grid

2013 ◽  
Vol 765-767 ◽  
pp. 2426-2429
Author(s):  
Jian Tu ◽  
Zhen Hui Huang ◽  
Zhen Juan Huang
Keyword(s):  
High Voltage ◽  
Power Grid ◽  
Coal Mines ◽  
Distribution Networks ◽  
Lower Sensitivity ◽  
Voltage Distribution ◽  
Supply Situation ◽  
Zero Sequence ◽  
Electric Cables ◽  
Zero Sequence Voltage

In view of the current direct supply situation of our coal mines high voltage distribution networks commonly used 6kV or 10kV electric cables,on the base of describing mechanism of three different neutral point grounded of underground high voltage distribution networks,detailed analysising three different grounded way of high-voltage power grid parameter sensitivity of leakage protection. The results show that, mine the sensitivity of the high-voltage grid leakage protection and start zero-sequence voltage have a great relationship, the greater the zero-sequence voltage setting value, the device's ability to detect leakage faults weaker corresponding lower sensitivity.

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