The reactive compensation device coordination configuration method based on improved optimal covering method

2014 ◽  
Author(s):  
Zhao Hong-sheng ◽  
Duan Guo-quan ◽  
Liu Di-chen ◽  
Wu Jun ◽  
Q. I. Lin-ge ◽  
...  
Keyword(s):  
Reactive Compensation ◽  
Covering Method ◽  
Compensation Device ◽  
Coordination Configuration

The Application of S7-200 PLC Reactive Compensation Device in Small Substation

2012 ◽  
Vol 479-481 ◽  
pp. 1476-1480
Author(s):  
Qing He Chu ◽  
Wen Si Cao ◽  
Zhen Nie
Keyword(s):  
Reactive Power ◽  
Control Method ◽  
High Reliability ◽  
Reactive Power Compensation ◽  
Control Device ◽  
Reactive Compensation ◽  
Reconstruction Project ◽  
Compensation Device ◽  
And Control

In the present rural power grid reconstruction project ,according to the problems of capacitor reactive power compensation in rural small substation. Take a small substation for instance, according to its operation and control method, set the criterion of the capacitor bank switching. A new high reliability, flexible reactive power compensation control device based on s7-200 PLC is designed. It plays an important role in improving the power supply , guaranteeing the quality of voltage, reducing the loss of rural power gid.

Selecting Optimal Reactive Compensation Device for Power System

2014 ◽  
Vol 556-562 ◽  
pp. 1560-1563
Author(s):  
Tran Thi Ngoat ◽  
Xiao Ming Zha ◽  
Le Ngoc Giang
Keyword(s):  
Power System ◽  
Power Flow ◽  
Transient Stability ◽  
Reactive Power ◽  
Transient State ◽  
Power Generating Unit ◽  
Load Demand ◽  
Reactive Compensation ◽  
Compensation Device ◽  
Selection Of

Although there are many studies on application of FACTS unit, especially application of reactive power generating unit for power system to enhance voltage stability amplitude and transient stability as considered, the evaluation and selection of suitable power generating unit (STATCOM or SVC) as well as optimal compensation size in the analysis of steady and transient state is not paid attention to. This article studies the above described issues to give a solution to install reasonable reactive power generating source (kind of Var source, location, size) for the power system. The analysis will be based on the technical factors rather than economic ones. 500kV grid system in Vietnam will be used in the calculation until 2015. To deeply evaluate, the implementation plan of reactive power compensation was only studied for 500kV grid in the South, where the load demand is large and can be dramatically increased. The results of power flow calculation, the analysis of characteristics of PV, OPF, and transient stability were studied through PSS/E-30 software.

The Application of Low Voltage Dynamic Reactive Compensation Technology of Submerged Arc Furnace in Intelligent Industrial Park

2014 ◽  
Vol 953-954 ◽  
pp. 1471-1477
Author(s):  
Qiang Li ◽  
Ning Xi Song ◽  
Qian Sun ◽  
Hao Liu ◽  
Da Peng Wang
Keyword(s):  
Reactive Power ◽  
Low Voltage ◽  
Reactive Power Compensation ◽  
Industrial Park ◽  
Dynamic Compensation ◽  
Power Dynamic ◽  
Reactive Compensation ◽  
Working Principle ◽  
Compensation Device ◽  
Submerged Arc Furnace

This paper introduces a kind of low-voltage dynamic reactive power compensation technology which is applied in intelligent industrial park. The system scheme, working principle, technical feature of the DCS-KB-2100 type low voltage power dynamic compensation device is recommended. According to the application result, the low voltage reactive power compensation technology has been greatly improved power quality, improve the power factor of the power grid. The advancement and stability of the low voltage reactive power dynamic compensation technology is verified. In the process of enterprise production, it gives full play to the role of energy saving and consumption reducing, points out the direction on the technological innovation of the industrial park electricity intellectualization, and provides a reliable technical support.

Simulation Research of External Data Reading Technology Based Arc Furnace Reactive Compensation

2014 ◽  
Vol 1049-1050 ◽  
pp. 708-711 ◽  
Author(s):  
Yu Tian Zhou ◽  
Shu Han Wang ◽  
Jun Ming Li ◽  
Xin Yu ◽  
Jia Yong Chen ◽  
...  
Keyword(s):  
Compensation Effect ◽  
Arc Furnace ◽  
Simulation Research ◽  
External Data ◽  
Reactive Compensation ◽  
Adverse Impacts ◽  
Reading Technology ◽  
Normal Production ◽  
Compensation Device ◽  
Data Reading

The arc furnace is a common load in smelting industry. Due to special structure, it often generates great impact on the grid. It has become a recognized technical means to use dynamic reactive compensation device SVC to eliminate the adverse impacts on grid power quality during arc furnace production. However, the electrical system of some arc furnace load containing sites is complex. Limited by the site condition in which sound commissioning environment cannot be provided for SVC, relevant control parameters can only be configured on the basis of experience, which leads to poor compensation effect, and thus affecting normal production of the user.

Study on Reactive Power Compensation of Single Wind Farm

2012 ◽  
Vol 608-609 ◽  
pp. 573-578
Author(s):  
Yue Li ◽  
Bao Zhu Liu
Keyword(s):  
Wind Turbine ◽  
Power Loss ◽  
Wind Farm ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Power Network ◽  
Generation System ◽  
Reactive Compensation ◽  
Compensation Device ◽  
Node Voltage

With the proportion of wind turbine generation system(WTGS) in power grid is highly increasing, which produces a great effect on the security and stability of the electric power network. Considering the current condition and characteristic of wind form, we built a simulation model in the imitative situation with different wind turbine outputs and different feeder types, obtained the reactive power loss of wind farm and key node voltage, as well as the ability of fixed compensation device. By using the reactive power generated from wind turbine, it can reduce capacity of the reactive compensation device in collection station, which realizes the balance of reactive power, increases the voltage stability.

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