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A power pulse regulation method and regulation system of an approaching hydropower station

A power pulse and regulation system technology, applied in hydropower, machines/engines, mechanical equipment, etc., can solve problems such as overshoot or inadequate regulation, and achieve fast and accurate active power regulation

Active Publication Date: 2022-05-31
SICHUAN HUANENG BAOXINGHE HYDROPOWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an approaching hydropower station power pulse adjustment method and adjustment system, so as to improve the existing power adjustment prone to overshoot or adjustment is not in place

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  • A power pulse regulation method and regulation system of an approaching hydropower station
  • A power pulse regulation method and regulation system of an approaching hydropower station

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Embodiment Construction

[0020] The present invention will be further described below with reference to the accompanying drawings and examples. The embodiments of the present invention include but are not limited to the following examples.

[0021] see figure 1 and figure 2 , an approximation type hydropower station power pulse adjustment method is characterized in that, comprises the following steps:

[0022] Step 1. Periodically obtain real-time active power Pa, active power target value P, and power regulation dead zone Pd of hydropower units by periodic sampling. Step 2. Compare the absolute value of the difference between the real-time active power Pa and the active power target value P |P-Pa| and the size of the power adjustment dead zone Pd; if |P-Pa| is less than or equal to Pd, it will end after a delay adjust. Step 3. If |P-Pa| is greater than Pd, △P is obtained by subtracting the active power target value P and the active power actual value Pa at this moment, where △P=P-Pa. Step 4. Obt...

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Abstract

The invention discloses a power pulse adjustment method and an adjustment system of an approaching hydropower station, which uses periodic collection of real-time active power, active power target value and dead zone adjustment to form a closed-loop adjustment mode for active power. The difference between the target value and the actual value of active power is used to determine the pulse action time of the guide vane, thereby adjusting the opening of the guide vane of the turbine, and then adjusting the active power of the hydropower unit. The invention realizes fast and accurate adjustment of the active power of the unit.

Description

technical field [0001] The invention relates to the field of power regulation of hydropower stations, in particular to an approaching power pulse regulation method and regulation system of a hydropower station. Background technique [0002] Due to the characteristics of fast start-up and shutdown, and rapid response of load regulation, hydropower stations often undertake peak regulation functions in the power grid, and active power regulation is very frequent during operation. The active power adjustment of the hydropower unit is mainly based on the closed-loop adjustment of the active power of the monitoring system. When there is a new power target value, the adjustment function is triggered. The local control unit (LCU) of each unit is based on the actual active power and active power of the unit. If the target value of power adjustment is deviated, the real-time active power adjustment switch pulse command is sent to the governor, and the governor modifies the given value...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B15/08F03B15/16
CPCF03B15/08F03B15/16F05B2270/328Y02E10/20
Inventor 李阳刘江涛周波周政
Owner SICHUAN HUANENG BAOXINGHE HYDROPOWER CO LTD