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.

Research of the On-Line Capacitor Measurement and Protection Device Based on STM32

2014 ◽  
Vol 945-949 ◽  
pp. 2641-2645
Author(s):  
Mao Fa Gong ◽  
Feng Qiu ◽  
Kai Li Song
Keyword(s):  
Reactive Power ◽  
Reactive Power Compensation ◽  
Control Device ◽  
Programming Algorithm ◽  
On Line ◽  
Line Loss ◽  
Compensation Device ◽  
And Control ◽  
Measurement And Control

It has great significance for the capacitor reactive power compensation device to improve the quality of the power system voltage and reduce the line loss. This paper proposes a reactive power compensation measurement and control device scheme that integrates reactive power compensation with microcomputer protection function, it also can cover the shortage of the microcomputer relay protection of parallel capacitor reactive power compensation system, the whole system is linked by the RS485 bus. The paper mainly introduces the hardware design around the STM32 series micro controller. And then introduce the design of the software on main programming algorithm of parameter measurement, communication protocol and capacitor protection configuration and the criterion of the major programming algorithm.

The New Type of Reactive Power Compensation Device under Direct Current Control and Indirect Current Control

2013 ◽  
Vol 694-697 ◽  
pp. 826-829
Author(s):  
Yan Han ◽  
Xiaoming Zhang ◽  
Pan Pan Yang
Keyword(s):  
Direct Current ◽  
Reactive Power ◽  
Control Method ◽  
Reactive Power Compensation ◽  
Current Control ◽  
Instantaneous Reactive Power Theory ◽  
Direct Current Control ◽  
Indirect Current Control ◽  
The Difference ◽  
Compensation Device

This Paper Briefly Describes the Basic Principle of Reactive Power Compensation and Introduces the Indirect Current Control and Direct Current Control Method Based on Instantaneous Reactive Power Theory. Compare the Two Control Theory and Use the MATABLE Simulink Environment to Analyzing the Difference between the Two Methods

The Coordination Control Method of Dynamic Reactive Power Compensation Equipment Based Multi-Objective

2013 ◽  
Vol 724-725 ◽  
pp. 635-640
Author(s):  
Ya Lu Sun ◽  
Wen Ying Liu ◽  
Ning Bo Wang ◽  
Yan Hong Ma
Keyword(s):  
Wind Farm ◽  
Reactive Power ◽  
Control Method ◽  
Coordinated Control ◽  
Reactive Power Compensation ◽  
Composite Indicator ◽  
Coordination Control ◽  
Slow Speed ◽  
Multi Objective ◽  
Reactive Compensation

According to the operation features that voltage of wind farm fluctuate greatly, we analyzed the operation features of reactive power compensation equipment and put forward the coordination control method of compensation equipment. The method solved the problem for a single for reactive compensation equipment caused by the slow speed and poor economy. Based on the target of safe and economical operation, we raised that using composite indicator calculate the capacity of all kinds of required compensation equipment, and then we had coordinated control to compensation equipments. This paper gave an example of Guazhou Gansu and tested and verified the feasibility and effectivity of the method.

Study on Matlab Simulation of Novel Distribution Static Synchronous Compensator

2015 ◽  
Vol 719-720 ◽  
pp. 486-489
Author(s):  
Li Chen
Keyword(s):  
Vector Control ◽  
Reactive Power ◽  
Control Method ◽  
Distribution Network ◽  
Reactive Power Compensation ◽  
Matlab Simulation ◽  
Transformation Theory ◽  
Static Synchronous Compensator ◽  
Novel Strategy ◽  
And Control

This paper analyses and researches the performance and principle of DSTATCOM in distribution network .Detecting means and control method of DSTATCOM are key point of this paper. The paper determines the detecting means of improved d-q transformation theory of vector control based on instantaneous reactive power and adopts a novel strategy based on the prediction table of double variable. Moreover, the simulation of DSTATCOM is presented with MATLAB. The simulating results prove the DSTATCOM put forward in the paper can realize dynamic reactive power compensation efficiently.

The Design of Dynamic Reactive Power Compensation Device on Segmented Control Mode

2013 ◽  
Vol 321-324 ◽  
pp. 1333-1336
Author(s):  
Xiu He Lu ◽  
Chang Shuo Li ◽  
Qi Lin Li
Keyword(s):  
Power Factor ◽  
Reactive Power ◽  
Perceptual Load ◽  
Control Method ◽  
Metallurgical Industry ◽  
Reactive Power Compensation ◽  
Control Mode ◽  
Loop Control ◽  
Distribution Station ◽  
Compensation Device

For metallurgical industry perceptual load fluctuations large, and distribution station bus power factor low, and power loss high problems, based on reactive power compensation principle of apparent power does not variable, and used SVC structure forms, has made sectional type compensation control mode, and based on power factor of closed-loop control method, has researched the dynamic reactive power compensation device, by the check of practical run, the feasibility has been proved of the control method, and it has a clear compensation effect and wide practical range and other outstanding features.

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.

scholarly journals Reactive Power Compensation Using FACTS Device

10.29007/vt1t ◽  
2018 ◽  
Author(s):  
Dhavalkumar Desai ◽  
Swapnil Arya
Keyword(s):  
Single Phase ◽  
Reactive Power ◽  
Control Method ◽  
Reactive Power Compensation ◽  
Variable Load ◽  
Phase Variable ◽  
Simulink Model ◽  
Proposed Model ◽  
Thyristor Controlled Reactor ◽  
And Control

In this paper Matlab-simulink model of single phase variable load with Fixed Capacitor-Thyristor controlled reactor (FC-TCR) for compensation of reactive power is presented. The specific feature of proposed model is determining load reactive power instantaneously and by involving automatic control method compensate load reactive power. The model of FC-TCR and control system is presented such that it is easy to implement in hardware. Detail discussion of all the block is given. And all the results are discussed for the various load.

The Improved Five-Zone Control Theory with Considering Dynamic Reactive Power Compensation Device

2014 ◽  
Vol 672-674 ◽  
pp. 1100-1104
Author(s):  
Lin E Ge Qi ◽  
Di Chen Liu ◽  
Jun Wu
Keyword(s):  
Control Theory ◽  
Reactive Power ◽  
Control Method ◽  
Control Object ◽  
Good Control ◽  
Reactive Power Compensation ◽  
Control Effect ◽  
Zone Control ◽  
New Type ◽  
Compensation Device

The “five-zone” control theory is a kind of Reactive power integrated control theory With the device as the control object directly which is different from the traditional “nine-zone” theory . It has high control precision and good control effect and has a broad application prospect. However, with the appearance of New type of dynamic reactive power compensation device, the basic five-zone control theory can’t meet the new demand In this paper, on the basis of the traditional "five-zone"theory, considering the dynamic reactive power compensation device, the traditional five area boundary is improved. Based on the improved chart on the basis of the five area, defines a new type of five area chart control method, and finally verifies “improved five-zone” control method by simulation.

Research on a Dynamic Reactive Power Compensation Method of Composite Power Load

2014 ◽  
Vol 602-605 ◽  
pp. 2840-2843 ◽  
Author(s):  
Qi Jian Cheng ◽  
Jing Chen ◽  
You Xin Yuan ◽  
Xue Song Zhou ◽  
Shi Jie Deng
Keyword(s):  
Topological Structure ◽  
Reactive Power ◽  
Control Method ◽  
Reactive Power Compensation ◽  
Compensation Method ◽  
Compensation Control ◽  
Power Load ◽  
Compensation Device ◽  
Reactive Power Compensator

A large number of inductive loads need the reactive power, and the amount of the reactive power compensation is different in a state of work. The traditional static reactive power compensator is difficult to meet the needs of the reactive power compensation for the composite load reactive. Therefore, a dynamic reactive power compensation method of the composite power load is proposed in this paper. The following works have been done in the study: principle of dynamic reactive power compensation control method, topological structure of dynamic reactive power compensation device, and implementation of the dynamic reactive power compensation control method.

Sign in / Sign up

Export Citation Format

Share Document