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Electronic regulator model for water turbine adjusting system

An electronic regulator and regulation system technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as insufficient control logic, affecting the accuracy of power system stability, calculation simulation, and inability to reflect control logic.

Active Publication Date: 2016-04-06
CHINA ELECTRIC POWER RES INST +4
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the structure of the model has power mode and opening mode, the control logic is not comprehensive enough to reflect the control logic of the current large-scale hydraulic turbine electronic regulator, which affects the simulation accuracy of power system stability calculation

Method used

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  • Electronic regulator model for water turbine adjusting system
  • Electronic regulator model for water turbine adjusting system
  • Electronic regulator model for water turbine adjusting system

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Embodiment Construction

[0074] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0075] Such as Figure 4 As shown, the present invention provides an electronic regulator model for a hydraulic turbine regulation system, which is used for power system stability analysis and calculation; the electronic regulator model includes a large network control system and an isolated network control system;

[0076] There is a PID adjustment module in the large network control system; the large network control system automatically switches with the i...

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Abstract

The invention provides an electronic regulator model for a water turbine adjusting system. The model has an openness control mode, a power control mode and an isolated-network control mode. The openness control mode or the power control mode can be manually selected as a control mode of a normal grid-connected unit. The openness control mode or the power control mode can be automatically switched with the isolated-network control mode. The power control mode has two sets of PID control parameters which can be automatically switched. The electronic regulator model is clear in structure and strong in universality, the parameter meaning of the model is definite, and the parameters can be conveniently obtained through measurement on site. The modeling process is efficient, the precision is high, and the actual control function can be accurately simulated, so that the actual engineering demands can be satisfied. Moreover, the universality of model application is improved. The meaning of the control parameters of the model is clear, and the parameters are conveniently obtained through a field test, so that the model has actual engineering application value. A reliable and accurate basis is provided for stable analysis and calculation of an electric power system, so that the stability of the electric power system is ensured.

Description

technical field [0001] The invention relates to the technical field of power system modeling, in particular to an electronic regulator model for a water turbine regulating system. Background technique [0002] Power system stability is the ability of the power system under given operating conditions to return to the operating equilibrium state after being disturbed. Most variables in the system can be maintained within a certain range, so that the whole system can run stably. According to different properties, power system stability can be divided into three categories: power angle stability, voltage stability and frequency stability. When analyzing power angle stability, it can be further divided into the following categories: static stability, transient stability, dynamic stability and voltage stability. The transmission capacity of long-distance transmission lines is limited by these four stability capabilities, and there will be a limit. It can neither be equal to or ...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J3/002H02J2203/20
Inventor 艾东平王官宏于大海李志强何凤军任岩何可智张新华常喜强王衡郭小龙于永军齐晓笑刘大贵
Owner CHINA ELECTRIC POWER RES INST
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