Trigger Circuit Design for Series SCRs Valve Bank

2012 ◽  
Vol 468-471 ◽  
pp. 2912-2915 ◽  
Author(s):  
Li Wang ◽  
Yan Qing Pang ◽  
Zhi Ming Song ◽  
Tang Sheng Xun ◽  
Hong Yu Gao ◽  
...  
Keyword(s):  
Circuit Design ◽  
High Voltage ◽  
Simple Structure ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Pulse Transformer ◽  
Voltage Source ◽  
Switched Capacitor ◽  
Trigger Circuit ◽  
Compensation Device

This article introduces the trigger circuit of series SCRs valve and a new trigger circuit is designed for series SCRs valve of TSC. The trigger circuit is driven by voltage source and a high voltage cable is used for insulation of the pulse transformer. The trigger circuit has simple structure and a steep front of gate-current. This unit is used in 10 kV thyristor switched capacitor (TSC) reactive power compensation device, and the results verify its feasibility.

A Dynamic Reactive Power Compensation Method of Super High-Power and High-Voltage Motor

2014 ◽  
Vol 602-605 ◽  
pp. 2828-2831 ◽  
Author(s):  
Yi Fei Wang ◽  
You Xin Yuan ◽  
Jing Chen ◽  
Qi Jian Cheng
Keyword(s):  
High Voltage ◽  
High Power ◽  
Reactive Power ◽  
Industrial Applications ◽  
Reactive Power Compensation ◽  
Compensation Method ◽  
The Novel ◽  
Parameter Setting ◽  
Compensation Device ◽  
Novel Design

According to the low power factor and low running efficiency, a dynamic reactive power compensation method of the super high-power and high-voltage motor is proposed in this paper. The following works have been done in the study: topology of the dynamic reactive power compensation device; principle of the dynamic reactive power compensation method; control system of the dynamic reactive power compensation device; implementation of the dynamic reactive power compensation method. The amount of reactive power compensation can be adjusted smoothly and dynamically in the process of the super high-power and high-voltage motor soft-starting. The research of this paper has laid a theoretical foundation for this compensator in industrial applications. The novel design is characterized by flexible parameter setting, excellent soft starting performance of the super high-power and high-voltage motor and bright prospect in application.

66 kV SVC Light Control Water-Cooled Valve Protection and Application

2014 ◽  
Vol 543-547 ◽  
pp. 825-829
Author(s):  
Jian Guo Xu ◽  
Jun Dong ◽  
Hao Zhang ◽  
Yu Jie Pei ◽  
Xian Feng Li
Keyword(s):  
Reactive Power ◽  
Cooling System ◽  
Reactive Power Compensation ◽  
Advanced Technology ◽  
Water Cooling ◽  
Circuit Boards ◽  
Light Control ◽  
Control Cabinet ◽  
Trigger Circuit ◽  
Compensation Device

Improve power quality problems, the company introduced the "tag through 66kV Static dynamic reactive power compensation device (SVC)", which means water cooling valve parts, using the international advanced technology and light control thyristor, the real control cabinet and valve all-fiber connections between groups, no valve trigger circuit boards, etc., to ensure safe and reliable high-pressure environment. Light control while protecting 66kV more stable water-cooled manifold, also designed the various protection functions. Reactive power compensation device based on electrical design principle, the protection of the valve design principles, summarized the valve characteristic is a light-controlled thyristor trigger and pulse trigger laser fiber distribution device as one of the valve, the valve overcurrent analysis protection, undervoltage protection, return status display, RC protection, BOD protection, protection and cooling system valve structural protection, light control demonstrates the necessity of 66kV water cooling valve protection; through the reactive power compensation and benefits case situation the comparative analysis to verify the correctness of the application of SVC devices.

The High-Voltage Reactive Power Compensation Device Applications and Innovations

2014 ◽  
Vol 494-495 ◽  
pp. 1787-1790
Author(s):  
Jun Dong ◽  
Yan Jun Pang ◽  
Da Lin Zhang ◽  
Zheng Zhi Yu ◽  
Qing Hao Wang ◽  
...  
Keyword(s):  
High Voltage ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Innovative Technology ◽  
Development Status ◽  
Device Development ◽  
Device Applications ◽  
Compensation Device ◽  
New Generation ◽  
Application Prospects

This article briefly describes the modern power system of high-voltage reactive power compensation device development status, discusses the high voltage reactive power compensation device applications, with the traditional high-voltage reactive power compensation device matching, demonstration of a new generation SVC (Static Var Compensator) and SVG (STATCOM) advantages and application results. This paper focuses on the innovative technology in the new generation of high-voltage reactive power compensation device in the application, while a new generation of high voltage discussed reactive power compensation device application prospects.

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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