Universal simulation platform for large-sized pumped storage power stations

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...

AI Technical Summary

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 of versatility, and the built platform was usually only for a specific power station or a specific unit, resulting in the repetition of the same type of work; and In the previous pumped storage power station modeling and simulation process, it was often difficult for the simulation platform to view the overall change response of each curve in real time and arbitrarily, that is, there were certain deficiencies and large room for improvement in terms of model visualization and comparison of each curve

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