Joint pumped storage power station and wind power and solar power complementary system and optimization method therefor

Abstract

The invention discloses a joint pumped storage power station and wind power and solar power complementary system and an optimization method therefor, and belongs to the technical field a joint wind power and solar power energy storage power generation system. By transforming an available space of a waste mine, a hybrid power generation system, combined by an underground water-pumping energy-storage power station and a surficial wind power and solar power complementary power generation system, is established; by taking the operation indexes, such as the wind power and solar power complementary system, the water-pumping energy-storage power station, power grid transmission power and the like as constraint conditions, a configuration model with the minimum wind power and solar power complementary output fluctuation, the minimum joint system output fluctuation and an optimized tracking load curve is obtained; and finally, solving and optimization on the model is performed based on an improved simulated annealing algorithm. By taking full advantages of the energy storage and power generation capability of the underground water-pumping energy-storage power station and by combination with the complementary characteristics of the wind power and solar power resources, the joint system is higher in flexibility in output regulation, the total output tracking load curve is better in effect, and the system is higher in new energy consumption and utilization.

Description

Technical field [0001] The invention belongs to the technical field of wind-solar hybrid power generation systems, and in particular relates to a combined wind-solar complementary system of a pumped storage power station and an optimization method thereof. Background technique [0002] Some deep underground mines were forced to withdraw from the market due to obsolete equipment and backward technology and were abandoned. This not only wastes land resources, but also easily causes problems such as surface subsidence and soil erosion. Based on the existing conditions of abandoned underground mines, it is transformed into a combined wind, solar, and pumped storage system that combines underground pumped storage power stations and wind-solar hybrid power generation systems, which not only solves the problem of reuse of underground space in idle mines, but also saves Funds for the construction of pumped storage power stations to re-dig underground space have also achieved multiple goa...

AI Technical Summary

Problems solved by technology

[0004] Most of the traditional wind-solar-pumped-storage combined systems analyze the surface pumped storage power station only as an energy storage device in the comprehensive system, and do not make full use of its flexible storage and generation characteristics to adjust output. In addition, the optimization research of the system mostly focuses on the minimum cost and Maximize the revenue as the optimization goal, without considering the situation of output tracking scheduling curve

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