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Flexible and extensible excitation control system

A kind of excitation control and flexible technology, applied in the direction of control system, control generator, electrical components, etc., can solve problems such as the influence of generator system stability, achieve good scalability, clear physical meaning of parameters, and easy to use

Active Publication Date: 2014-02-12
STATE GRID CORP OF CHINA +2
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Problems solved by technology

Although many of the extended functions of the excitation control system are set from the perspective of equipment safety, they also have an indirect impact on the behavior of the generator in a special mode and the stability of the system

Method used

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  • Flexible and extensible excitation control system
  • Flexible and extensible excitation control system
  • Flexible and extensible excitation control system

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] Organically combine the power system analysis comprehensive program (PSASP) transient stability solidification model with the user-defined model, the simulation model commonly used in China with the extension function of the excitation control system (PSASP is a self-shunt excitation voltage adjustment unit, that is, voltage regulation On the basis of the regulator), the extended function simulation model will be built and connected to different locations according to the physical reality. At the same time, a data interaction interface with the user-defined model is reserved on the 12-type voltage regulator, which can accommodate a wider range of excitation extension functions.

[0030] figure 1 It is a structural block diagram of a flexible and expandable excitation control system. The system includes a signal measurement unit, a self-shunt excitation...

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Abstract

The invention provides a flexible and extensible excitation control system. The excitation control system comprises a signal measurement unit, a self-parallel excitation adjustment unit, a limiting unit and an analysis and decision-making unit. The signal measurement unit sends collected operation information of a generator to the self-parallel excitation unit and the limiting unit at the same time, and after being modulated, compared and processed by the self-parallel excitation unit and the limiting unit, the operation information is sent to the analysis and decision-making unit for analysis. The flexible and extensible excitation control system basically integrates the extended functions of excitation control systems of main domestic generator sets and can be used for analyzing stability of the system after actions such as overexcitation, low excitation and stator current limiting of a limiter are conducted.

Description

technical field [0001] The invention relates to a control system, in particular to a flexible and expandable excitation control system. Background technique [0002] The generator is the main source of reactive power supporting the system voltage, so the excitation control has a significant impact on almost all operating modes of the generator and the system. The design idea of ​​modern generator excitation control has risen from a single isolated generator voltage control to a comprehensive coordination control of various controls and protections of the whole system and the whole process. Although many extension functions of the excitation control system are set from the perspective of equipment safety, they also have an indirect impact on the behavior of the generator in a special mode and the stability of the system. [0003] After the AC and DC UHV projects are put into operation, it will have a greater impact on the stable operation of the power grid along the UHV line...

Claims

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Application Information

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IPC IPC(8): H02P9/10
Inventor 陈强赵敏王君亮王骅施浩波徐鹏煜安宁栗占伟许立长夏天孙璐赵铮王官宏罗青春
Owner STATE GRID CORP OF CHINA
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