Speed regulating simulation system and method applicable to pumped storage unit

Abstract

The invention provides a speed regulating simulation system applicable to a pumped storage unit and a speed regulating simulation method applicable to the pumped storage unit. The speed regulating simulation system applicable to the pumped storage unit is composed of a monitoring system simulation unit, a storage hydroelectric generating unit simulation system and a power grid simulation unit; and the speed regulating simulation system applicable to the pumped storage unit can realize a plurality of simulation modes such as real-time simulation, super real-time simulation and under real-time simulation of a pumped storage unit speed adjustment system through diversified simulation. With the speed regulating simulation system and method applicable to the pumped storage unit of the invention adopted, a whole power regulation loop of load setting, load regulation and load output of a pumped storage power station can be simulated authentically, and machine-network joint simulation based on a pumped storage unit speed regulating system model can be realized, and pumped storage unit characteristic analysis and power grid stability research under the background of a large power grid can be facilitated. Compared with other platforms which can only realize a single-unit plant-level speed adjustment system function, the speed regulating simulation system and method applicable to the pumped storage unit of the invention are advantageous in excellent functional performance and greater benefit for satisfying requirements of experiments, analysis researches and the like, and positive significance for the promotion of development and the improvement of production efficiency.

Description

Technical field [0001] The present invention relates to the technical field of power system simulation, in particular to a speed control simulation system suitable for pumped storage units, and a speed control simulation method based on the simulation system. Background technique [0002] With the rapid development of nuclear power plant construction and new energy development, my country's pumped storage power plant construction has also entered a period of rapid development. Among them, the pumped-storage unit is responsible for peak regulation, frequency regulation, phase regulation, accident backup, and absorbing excess electric energy in the power system. It is the most important energy storage and peak regulation node in the current grid. As one of the most important auxiliary machines of pumped storage units, the governor system is mainly responsible for important tasks such as unit speed control, synchronization, load regulation and working condition conversion, so its ac...

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Problems solved by technology

However, at present, there are few platforms at home and abroad that can completely simulate the entire pumped storage unit speed control system and its upper and lower connection parts, and the functions of the existing energy storage unit speed control system simulation platforms are limited to Simulation at the plant-level mechanical and electrical equipment level of the speed control system

[0005] However, due to the lack of development of the governor system model on the existing power system simulation platforms at home and abroad, the functions are generally simple, and it is difficult to perfectly adapt to the application status of the pumped storage unit; It does not include the simulation unit of the monitoring system; it does not have the functions of realizing various tasks such as speed, synchronization, load regulation, and working condition conversion; it can only simulate the power generation process, and cannot simulate the load regulation process of synchronous and pumping conditions; and there is no Power grid simulation module, a few have power grid simulation modules but do not have the function of simulating power grid load frequency characteristics, but can only simply simulate power grid frequency fluctuations, etc.

These are not conducive to the promotion of efficient production

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