Method for testing first startup of first machines of pumped storage power stations

A technology of pumped storage power station and test method, which is applied to the testing of machines/structural components, measuring electricity, and measuring electrical variables, etc., which can solve problems such as no guidance plan and short test period

Active Publication Date: 2017-02-22
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above technologies have not given specific guidance on how to provide a test method for the first start-up of the pumped storage power station, so that while improving economic benefits, the entire unit is not prone to failure and the test period is short.

Method used

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  • Method for testing first startup of first machines of pumped storage power stations
  • Method for testing first startup of first machines of pumped storage power stations
  • Method for testing first startup of first machines of pumped storage power stations

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Embodiment

[0085] Embodiment: A test method for the first start-up of the first machine of a pumped storage power station. The test method for the first start-up of the first machine is a test method for starting the whole group of water pumps. Condition test, working condition conversion test and accident shutdown test.

[0086] The operating parameters (main characteristic hydraulic parameters) of the whole group start-up test under the first water pump working condition of the first machine are as follows: The water volume is 43,910 m 3 (The water filling of the upper reservoir is completed by the 6 water supply pumps of the construction water supply system of the upper reservoir and the 2 upper reservoir water filling pumps in the factory building. The water filling flow of the 6 construction water supply pumps of the upper reservoir for the upper reservoir filling is 260m 3 / s, the corresponding motor power is 411kW); the working lift of the water filling pump on the upper reservoi...

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Abstract

The invention discloses a method for testing first startup of first machines of pumped storage power stations. The method includes testing working conditions of water pumps of units; testing power generation working conditions of the units; testing working condition transformation; testing accidental shutdown. The guide vane opening is 17 degrees during tests for the working conditions of the water pumps of the units; guide vanes can quickly pass small guide vane opening zones of 0-5 degrees at the starting speeds of 2 degrees/second when pressures generated by the water pumps reach zero-flow lift and input power, load limiters of speed regulators are switched on by 100%, and accordingly the guide vanes can be opened to reach set opening of 17 degrees for the working conditions of the water pumps; closing law for the guide vanes includes closing total stroke of the guide vanes within 15 s if power sources are suddenly cut off in tests for working condition transformation and tests for accidental shutdown; closing law for water inlet ball valves includes that the valves are closed to reach opening of 20% from the original opening of 100% for the duration of 24.8 s in first sections and are closed to reach opening of 0 from the original opening of 20% for the duration of 37.2 s in second sections. The method has the advantages that economic benefits can be increased, the integral units are difficult to break down and are under good running conditions, the method is short in test cycle and high in work efficiency, and the service lives can be prolonged.

Description

technical field [0001] The invention relates to a start-up test method for a whole group of pumped-storage power stations, in particular to a first-time start-up test method for the first unit of a pumped-storage power station. Background technique [0002] For the pumped-storage power station installed with single-stage reversible pump-turbine unit, the first start-up method of the first machine is a comprehensive technical and economic research topic. The first start-up mode of the first machine can be divided into two types from the operation mode of the unit: the start-up of the turbine and the start-up of the pump. The pumped-storage power stations that have been built in China basically adopt the starting mode of the turbine working condition, and there is no precedent for the complete application of the starting mode of the pump working condition. Whether it is the first start in the direction of the turbine or the first start in the direction of the water pump, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01M99/00
CPCG01M99/005G01R31/00
Inventor 张鑫谷振富朱海峰王国柱高冠群李勇任刚黄嘉李甲骏龙福海陈波潘雪石王卓瑜
Owner STATE GRID CORP OF CHINA
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