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Adaptive control method for governor water head and load opening limit combination curve

A self-adaptive control and governor technology, applied to AC network circuits, electrical components, circuit devices, etc., can solve problems such as unreasonable setting of governor water head and load opening limit association curve, and the method is simple, efficient and feasible , Improve the effect of intelligent automation level

Active Publication Date: 2018-10-02
CHINA YANGTZE POWER
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AI Technical Summary

Problems solved by technology

It aims to solve a series of unit operation problems caused by the unreasonable setting of the governor water head and load opening limit association curve during the unit grid-connected operation

Method used

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  • Adaptive control method for governor water head and load opening limit combination curve
  • Adaptive control method for governor water head and load opening limit combination curve

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Embodiment Construction

[0042] If the set water head and load opening limit association curve is distorted, it will cause the normal operation of the unit to be suppressed by the load opening limit or the load opening limit will not be able to prevent the unit from overloading, which will affect the safe and stable operation of the unit. The present invention is applicable to the hydroelectric generating set that uses the water head and load opening limit coordination curve for governor electrical control, and aims to solve the problem caused by the unreasonable setting of the governor water head and load opening limit coordination curve during the grid-connected operation of the unit. A series of unit operation problems.

[0043] A method for adaptive control of a water head and load opening limit associated curve of a governor, comprising the following steps:

[0044] 1) According to the data provided by the host manufacturer, set the original data of the water head and load opening limit associati...

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Abstract

The invention discloses an adaptive control method for a governor water head and load opening limit combination curve. The method comprises steps: according to data provided by a host manufacturer, original data for the water head and load opening limit combination curve are set on a touch screen; a system is initialized to read the original data for the water head and load opening limit combination curve set on the touch screen; whether active power in the case of grid-connected operation of a unit can reach a unit power given value is detected; whether the active power of the unit firstly reaches a rated power value and keeps stable operation is detected; a water head and load opening combination curve table is corrected for a first time; whether the active power in the case of grid-connected operation of the unit can reach a unit power given value is detected; whether the active power of the unit reaches the rated power value and keeps stable operation is detected; and the water head and load opening limit combination curve table is corrected in real time. The problem that as the water head and load opening limit combination curve is distorted, the load is pressed by the load opening limit or the load opening limit can not prevent over load of the unit in the case of normal unit operation can be solved.

Description

technical field [0001] The invention belongs to the field of automatic control of hydropower stations, and relates to an adaptive control method for the water head and load opening limit association curve of a governor. Background technique [0002] At present, during the operation of the hydroelectric generating set, the associated curve of the governor water head and the load opening limit is set according to the data provided by the main engine manufacturer. However, the data provided by the main engine manufacturer is the theoretical data obtained through comprehensive calculation after model tests, which often do not match the actual operation of the real machine. The situation is self-correcting and adaptive in real time. If the set governor water head and load opening limit association curve is distorted, it will cause the unit to run normally, and the load will be suppressed by the load opening limit or the load opening limit will not be able to prevent the unit fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/48
CPCH02J3/382H02J3/48
Inventor 涂勇刘欢
Owner CHINA YANGTZE POWER
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