Hierarchical Optimization Model for Dispatching Plan of Inter-regional High-voltage DC Power Grid

2020 ◽  
Author(s):  
Huan Yue ◽  
Liu Wenying ◽  
Zhu Liping ◽  
Zhang Yuwei ◽  
Zhou Qiang
Keyword(s):  
High Voltage ◽  
Optimization Model ◽  
Power Grid ◽  
Hierarchical Optimization ◽  
Dc Power

High-voltage DC power grid system for the More Electric Architecture

2014 ◽  
Author(s):  
Hitoshi Oyori ◽  
Noriko Morioka ◽  
Yoshito Ota ◽  
Keisuke Onishi ◽  
Yukio Shimomura
Keyword(s):  
High Voltage ◽  
Power Grid ◽  
Grid System ◽  
Dc Power

UHV AC and DC Coordinated Operation Techniques Based on Continuous Simulation

2015 ◽  
Vol 713-715 ◽  
pp. 1347-1350
Author(s):  
Yu Fei Rao ◽  
Lin Lin Yu
Keyword(s):  
Theoretical Analysis ◽  
High Voltage ◽  
Power Grid ◽  
Double Pole ◽  
Continuous Simulation ◽  
Operation Techniques ◽  
Load Mode ◽  
Typical Method ◽  
Ultra High Voltage

In the process of China's ultra high-voltage (UHV) construction, Henan UHV power grid is the important part. Summer great load mode of Henan power gird is chosen as the typical method. In the background of completing Nanyang UHV extension project, based on single pole running and double pole running of Hami-Zhengzhou UHVDC project respectively, it is simulated and analyzed. The results indicate that power grid cannot maintain stability when single pole block fault or double pole block fault occurs. Through theoretical analysis and simulation, under UHV AC running certain limit, HVDC latching grid is stable. Under UHV DC running certain limit, HVDC latching grid is stable. Based on continuous simulation, this paper obtained the coordinated operation of area UHV AC and DC.

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

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