Power generation system

Abstract

The invention discloses a power generation system which comprises a high pressure air system, a channel switching system, a gas-liquid mixing system, a fluid-power power generation system and a control system. The high pressure air system, the gas-liquid mixing system and the fluid-power power power generation system are connected through the channel switching system and are controlled by the control system; the control system changes operating states of the power generation system; the operating states of the power generation system are divided into an energy storage state and a power generation state: when at the energy storage state, the power generation system absorbs new energy electric energy from a power grid and converts the new energy electric energy into compressed air which is stored in the high pressure air system; and when at the power generation state, under the function of the control system, air energy is converted into electric energy through the high pressure air system, the gas-liquid mixing system the fluid-power power power generation system and the channel switching system. According to the power generation system provided by the invention, the phenomena of wind curtailment, light curtailment and water curtailment can be alleviated, and the problem of low consumption proportion of renewable energy sources caused by difficult renewable energy source grid-connection and difficult consumption after grid-connection is solved.

Description

technical field [0001] The invention relates to the technical field of power generation, in particular to a power generation system. Background technique [0002] In order to increase the proportion of non-fossil energy consumption and ensure the safe supply of electricity and the heating demand of people's livelihood, it is necessary to focus on improving the regulation capability and operating efficiency of the power system, and take multiple measures from the load side, power source side, and grid side, focusing on enhancing system flexibility and adaptability. characteristics, solve the problem of new energy consumption, and promote green development. With the development of large-scale wind power / photovoltaic resources, my country's wind power / photovoltaic development has maintained a strong momentum of rapid development, but the contradiction between the unconventional development of new energy power generation and the relatively lagging power grid construction has bec...

AI Technical Summary

Problems solved by technology

With the development of large-scale wind power / photovoltaic resources, my country's wind power / photovoltaic development has maintained a strong momentum of rapid development, but the contradiction between the unconventional development of new energy power generation and the relatively lagging power grid construction has become increasingly obvious, and large-scale is random and problematic. The connection of wind power / photovoltaic energy to the grid with the characteristics of intermittent, anti-regulation and large output fluctuations has a great impact on the voltage stability, transient stability and frequency stability of the system. Wind power / photovoltaic energy is difficult to connect to the grid. Difficulty in consumption and other issues seriously restrict the reform of energy structure

Hydropower units have the characteristics of rapid shutdown, fast adjustment speed, and wide adjustment range. They can perform functions such as peak regulation and frequency modulation in the system. However, conventional hydropower plants and pumped storage power plants have limited roles in large-scale new energy storage and energy conversion. It cannot absorb abundant wind power, solar energy and other large-scale renewable new energy power, and has certain requirements for terrain and geology

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