Application Features of Mathematical Model of Power System for Analysis of Technical and Economic Indicators of Reactive Power Compensation Device

2020 ◽  
pp. 434-443
Author(s):  
D. V. Ishutinov ◽  
V. I. Laletin ◽  
E. N. Malyshev
Keyword(s):  
Mathematical Model ◽  
Power System ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Economic Indicators ◽  
Compensation Device ◽  
Technical And Economic Indicators

Research on Simulation of Applying SVC and STATCOM to Power System in Enterprises

2014 ◽  
Vol 496-500 ◽  
pp. 1670-1673
Author(s):  
Si Yu Li ◽  
Jia Dong Huang
Keyword(s):  
Mathematical Model ◽  
Power System ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Test Results ◽  
Important Method ◽  
Design Program ◽  
Motor Load ◽  
Technical Features

Reactive power compensation utilizing SVC and STATCOM is the most important method to improve power quality. In this paper, the technical features of SVC and STATCOM are introduced and then a power system in enterprises is used as an example in order to show effectiveness of SVC and STATCOM. Determination of location where SVC and STATCOM should be installed and their capacity is important for enhancement of power system voltage stability. Considering different kind of failure in power grid in enterprises, this paper gives analysis of voltage changes and motor load losses of the power system, on the meantime taking into account of the influence of external grid failure. Based on PSD-BPA software and mathematical model, the optimal design program of reactive power compensation utilizing STATCOM is determined by comparing effectiveness of SVC and STATCOM. Test results show very encouraging result.

Study of a Multi Objective Reactive Power Compensation Device Considering Fault Current Limiting

2013 ◽  
Vol 397-400 ◽  
pp. 1868-1872
Author(s):  
Hong Mei Wu ◽  
Wen Ting Hui
Keyword(s):  
Power System ◽  
Power Quality ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Mode Switching ◽  
Necessary Condition ◽  
Fault Current ◽  
Multi Objective ◽  
Current Limiting ◽  
Compensation Device

With the increasing demands of power quality, high-quality power supply has become a necessary condition of modern social life. Power quality problems include voltage sag/swell, voltage unbalance and harmonics. To solve the above problem, a multi objective reactive power compensation device considering fault current limiting is designed, which can provide a certain degree of reactive power compensation to solve multi-objective system powered composite power quality problems during the normal working of the power system, and be able to quickly to limit the short-circuit current mode switching when power system under fault conditions. Finally, on the basis of theoretical analysis, experiments and simulations confirmed the correctness and effectiveness of the control strategy.

Research on the Mathematical Model Construction and Algorithm of Dynamic Reactive Power Optimization about Distribution Network

2014 ◽  
Vol 716-717 ◽  
pp. 1221-1225
Author(s):  
Kai Yuan Zheng
Keyword(s):  
Mathematical Model ◽  
Power System ◽  
Reactive Power ◽  
Power Optimization ◽  
Distribution Network ◽  
Reactive Power Compensation ◽  
Entire Period ◽  
Reactive Power Optimization ◽  
Important Means ◽  
The Mathematical Model

Dynamic reactive power optimization of power system is an important means to ensure grid economic safety. Unlike static reactive power optimization, dynamic reactive power optimization has to consider the reactive power compensation devices switches and number of constraints of transformer tap stalls. The number of constraints undermine the independence of each period, each time reactive power optimization scheduling interrelated, so dynamic reactive power optimization must be considered from the entire period of time to compensate the number of constraints of the devices, and how to deal with action number of constraints is difficulty and focus of solving dynamic reactive power optimization of the power system.

Review of STATCOM Effects on Relay Protection of Power System

2013 ◽  
Vol 811 ◽  
pp. 639-642
Author(s):  
Xue Song Zhou ◽  
Chun Ji ◽  
You Jie Ma
Keyword(s):  
Power System ◽  
Reactive Power ◽  
New Technology ◽  
Dynamic Performance ◽  
Reactive Power Compensation ◽  
It Use ◽  
Flexible Ac Transmission ◽  
Compensation Device ◽  
The Stability ◽  
Ac Transmission

Flexible AC transmission technology (FACTS) is a new technology developed in recent years. It use power electronic technology and modern control technology to achieve fast control for AC transmission system parameter and structure [, to achieve the rational allocation of transmission power, reduce the power loss and the cost of power generation, greatly improve the stability and reliability of the system. STATCOM is based on the principle of reactive power compensation, using full-controlled switching devices to compose self-commutated inventer, complemented by small-capacity storage elements constitute reactive power compensation device. Its role in the power system is the compensation of reactive power, maintain the voltage of the connection point, improve system voltage stability, and improve the steady performance and dynamic performance of the system.

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.

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