A method for adaptive control of governor water head and load opening limit associated curve

An adaptive control and governor technology, applied in the direction of AC network circuit, electrical components, single-network parallel feeding arrangement, etc., can solve the problem of unreasonable setting of governor water head and load opening limit coordination curve, etc., to achieve The method is simple, efficient and feasible, and the effect of improving the level of intelligent automation

Active Publication Date: 2021-04-13
CHINA YANGTZE POWER
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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

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  • A method for adaptive control of governor water head and load opening limit associated curve
  • A method for adaptive control of governor water head and load opening limit associated 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

A method for adaptive control of the water head and load open limit associated curve of a governor, comprising: setting the original data of the water head and load open limit associated curve on the touch screen according to the data provided by the host manufacturer; The original data of the water head and load opening limit association curve; check whether the active power of the unit can reach the given value of the unit power when the unit is connected to the grid; check whether the active power of the unit reaches the rated power value for the first time and maintain stable operation; First correction of the degree association curve table; check whether the active power of the unit can reach the set power value of the unit when the unit is connected to the grid; check whether the active power of the unit reaches the rated power value and maintain stable operation; open limit association curve of water head and load Tables are updated in real time. The invention can solve the problem that the normal operation of the unit is suppressed by the load opening limit due to the distortion of the associated curve of the water head and the load opening limit, or that the load opening limit cannot prevent the unit from being overloaded.

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 Patents(China)
IPC IPC(8): H02J3/38H02J3/48
CPCH02J3/382H02J3/48
Inventor 涂勇刘欢
Owner CHINA YANGTZE POWER
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