Universal simulation platform for large-sized pumped storage power stations

A pumped-storage power station and simulation platform technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as less consideration of versatility, negative effects of transient and dynamic stability of power systems, and difficult simulation platforms.

Inactive Publication Date: 2014-02-19
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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  • Abstract
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Problems solved by technology

Its research believes that: ① The water hammer effect of the water turbine and the water diversion system will have a more obvious negative impact on the transient and dynamic stability of the power system
② The adverse effects of the excitation regulation and the electromagnetic process of the generator on the load disturbance characteristics of the turbine governor are relatively obvious
[0005] In terms of simulation platform research, previous studies often did not or rarely considered the issue o

Method used

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  • Universal simulation platform for large-sized pumped storage power stations
  • Universal simulation platform for large-sized pumped storage power stations
  • Universal simulation platform for large-sized pumped storage power stations

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Embodiment Construction

[0072] Such as figure 1 Shown, the large-scale pumped-storage power station general simulation platform based on long diversion pipeline one pipe multi-machine of the present invention is set up under the Matlab / Simulink environment, and its hydraulic-mechanical-electrical system mathematical model is: the upstream reservoir connected successively J1, pipe section L1 from upstream reservoir to surge well, upstream surge chamber J2, pipe section from upper surge well to branch pipe L2, valve before branch pipe J3, first steel-concrete branch pipe L3, first branch pipe connection J4.

[0073] After the first bu-shaped pipeline junction J4, it is divided into two branches:

[0074] One branch is sequentially connected from the first steel branch pipe to the ball valve pipe section L6, the first ball valve J11, the first ball valve to the volute pipe section L10, the first volute J7, the first volute section steel pipe L14, #5 unit J23, the first From the first steel branch pip...

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Abstract

A universal simulation platform for large-sized pumped storage power stations is characterized in that a hydraulic-mechanical-electric system mathematical model is established under a Matlab/Simulink environment; a one-pipe four-unit arrangement form is adopted, an upstream reservoir is connected with an upstream surge shaft through a long guide tunnel, the upstream reservoir is then communicated with three parallel Y-shaped high-pressure bifurcated pipes through a long high-pressure tunnel, a 300MW water pump turbine is disposed behind each high-pressure bifurcated pipe, and water flows pass the water pump turbines, enter the parallel Y-shaped tail water bifurcated pipes, gather at a tail water branch pipe, flow by the downstream purge shaft and a tail water tunnel, and reach a downstream reservoir. The universal simulation platform for large-sized pumped storage power stations is characterized in that universality is fully considered and overall change responses of curves can be optionally checked in real time.

Description

technical field [0001] The invention relates to a general simulation platform for a large-scale pumped-storage power station, in particular to a general-purpose simulation platform for a large-scale pumped-storage power station based on a long diversion pipeline with one pipe and multiple machines. Background technique [0002] Pumped storage power station is currently the most reliable, economical, longest life cycle, and largest capacity energy storage device in the power system. It plays a very important role in replacing traditional fossil energy, saving energy and reducing emissions, and improving the quality of power grid operation. The functions of energy storage, such as peak regulation, frequency regulation, voltage regulation, emergency backup and black start, play a very important role in supporting the safety, stability and economic operation of strong smart grids, and promote renewable energy such as nuclear power and wind power in my country. The large-scale deve...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 徐广文李俊益黄青松陈启卷曾洪涛田文刚
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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