A preventive control method for overload in a multi-source grid

2015 ◽  
pp. 29-34
Keyword(s):  
Control Method ◽  
Preventive Control

Power System Control Based on Voltage Risk

2013 ◽  
Vol 347-350 ◽  
pp. 1411-1414
Author(s):  
Ying Zhi Li ◽  
Wen Xia Liu
Keyword(s):  
Risk Assessment ◽  
Power System ◽  
Control Method ◽  
System Security ◽  
Electric Power System ◽  
Risk Indicators ◽  
System Control ◽  
Power System Security ◽  
Preventive Control ◽  
Power System Control

This paper focused on power system security problems and proposed risk assessment and preventive control method of electric power system based on voltage risk. The method built up a system voltage risk indicators, and have system voltage risk identified through risk assessment, on this basis, reduced the risk of the system voltage by optimizing the control variables of the system, which of course can increase system security. Finally, Refers to a 5-node tests as examples to verify availability of this method.

scholarly journals Research on a Power Grid Cascading Failure Prevention and Control Method considering WSN

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Huiqiong Deng ◽  
Junyuan Wu ◽  
Jie Luo ◽  
Renwu Yan ◽  
Cheng Zhang ◽  
...  
Keyword(s):  
Control Method ◽  
Low Cost ◽  
Power Grid ◽  
Dynamic Monitoring ◽  
Cascading Failures ◽  
Monitoring Methods ◽  
Preventive Control ◽  
Operation Parameters ◽  
Grid Operation ◽  
And Control

The practical application of wireless sensor networks (WSNs) in hot fields is summarized. It is found that compared with traditional monitoring methods, it has better adaptability to complex environments and low cost. It is suitable for monitoring power grid operation parameters. Therefore, this paper combines the above network and cascading failures, analyzes its 24-hour continuous and dynamic monitoring of the operation parameters of the power grid, and considers how to use the obtained parameters to analyze the disturbance of the remaining lines after the initial fault of the power grid. To prevent cascading failures in the power grid, a preventive control model considering safety and economy is proposed, and the model is solved by nondominated sorting genetic algorithm II and particle swarm optimization (NSGA2-PSO). Finally, the rationality of this method is verified in the IEEE39 node system.

A Novel Reconfiguration Strategy for Active Distribution Network Considering Maximum Power Supply Capability

2013 ◽  
Vol 448-453 ◽  
pp. 2747-2752 ◽  
Author(s):  
Wei Liang ◽  
Xiao Long Jin ◽  
Yun Fei Mu ◽  
Hong Jie Jia ◽  
Ming Shen Wang ◽  
...  
Keyword(s):  
Power Supply ◽  
Control Method ◽  
Distribution Network ◽  
Engineering Application ◽  
Maximum Power ◽  
Security Level ◽  
Preventive Control ◽  
Distribution Management ◽  
Active Distribution Network ◽  
Distribution Management System

In this paper, a novel reconfiguration strategy for active distribution network considering maximum power supply capability (PSC) is proposed. Firstly, a PSC index (PSCI) is proposed to evaluate the real-time security level of distribution network. Then, a novel reconfiguration strategy is developed for enhancing the PSCI of distribution network when the PSCI is lower than a pre-defined warning value. The reconfiguration strategy can be integrated to distribution management system (DMS) as a preventive control method to prevent outages of customers, which can significantly increase the reliability of distribution network. Case studies are carried out by using a typical 33-bus distribution network, and simulation results verify the effectiveness of the proposed reconfiguration strategy, which has a good engineering application prospect.

A distributed access control method for wireless LANs in shadowing environments

2001 ◽  
Vol 84 (9) ◽  
pp. 16-26
Author(s):  
Tadao Saito ◽  
Hitoshi Aida ◽  
Terumasa Aoki ◽  
Soichiro Hidaka ◽  
Tredej Toranawigtrai ◽  
...  
Keyword(s):  
Access Control ◽  
Control Method ◽  
Wireless Lans ◽  
Distributed Access Control
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