Hydrogovernor paddle combination optimization method and system with fine differentiation function

Abstract

The invention discloses a hydrogovernor paddle combination optimization method and system with a fine differentiation function. The method includes the steps: setting n waterhead combination point fixed values and n paddle given point fixed values; performing waterhead subdivision to obtain waterhead given values H(given); performing paddle given subdivision to obtain paddle given values D(given);and acquiring waterhead measured values H(measured) and paddle measured values D(measured), calculating a first combination value L(i) of each combination point i, calculating a second combination value M(i) of each combination point i, and calculating a finally output paddle combination value Y(H given) of each combination point i. The method can improve to ensure that a governor actual execution combination relationship is kept consistent with an optimal combination relationship, can guarantee accurate measurement and calculation of paddle combination and avoid the problems of low accuracy,large accumulative calculation errors, transfer equipment faults and the like caused by frequent waterhead changes, and can be applied to various hydrogovernor combination devices.

Description

Technical field [0001] The invention relates to a control technology of a water turbine governor blade of a hydroelectric power plant, in particular to a method and system for synergistic optimization of a water turbine governor blade with a refined differentiation function. Background technique [0002] The governor blade association device of a hydropower plant is the control mechanism of the governor blade. Its basic function is to input the water head detected by the head sensor and the blade position detected by the blade sensor, and generate output values ​​based on multiple associated values. Give the blade operating mechanism. For example, the original hydraulic turbine blade synergy device of Hongjiang Power Plant uses head measurement to calculate in PLC based on only 10 synergy values, and each output value is generated by interpolation. However, due to the rapid change of the head of the bulb tubular unit, the large deviation of the first association value, the low a...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention: Aiming at the above-mentioned problems in the prior art, in order to solve the situation that the vibration of the unit increases significantly under the condition of low water head and heavy load, a water turbine governor blade with a fine distinction function is provided The association optimization method and system, the present invention can improve and ensure that the actual implementation of the association relationship of the governor is consistent with the optimal association relationship, can ensure the accurate measurement and calculation of the blade association, and avoid low precision caused by frequent changes in water head , large cumulative error in calculation, failure of transfer equipment and other problems, it can be applied to all kinds of hydraulic turbine governor association devices

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