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Power generation system

A power generation system and subsystem technology, applied in hydropower, engine components, machines/engines, etc., can solve problems such as inability to absorb renewable new energy power, difficulty in connecting wind power/photovoltaic energy to the grid, and energy structure changes, and achieve relief The phenomenon of abandoning wind, light, and water, easy to realize, and the effect of saving resources

Active Publication Date: 2020-01-03
STATE GRID HUNAN ELECTRIC POWER +2
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  • Application Information

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

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0058] Embodiment 1 and Embodiment 3 both control the exhaust valve through the air pressure control system to adjust the pressure or maintain the pressure difference. The given curve of the pressure difference may be a constant value or a planned curve, depending on the role played by the generator set in the power grid , operation and scheduling methods, generally there are AB side gas-liquid mixing container pressure difference operation mode, AB side gas-liquid mixing container variable pressure difference operation mode, and AB side gas-liquid mixing tank pressure difference operation mode is divided into A Constant air pressure mode of side gas-liquid mixing vessel, constant pressure mode of B-side gas-liquid mixing vessel, constant pressure mode of AB side gas-liquid mixing vessel, constant pressure difference mode of AB side gas-liquid mixing vessel, variable pressure difference of AB side gas-liquid mixing vessel The operation mode is further divided into the air press...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B13/06F03B17/00F04B41/02F04B41/06F04F1/06H02J3/32
CPCF03B13/06F03B17/005F04B41/02F04B41/06F04F1/06H02J3/32Y02E10/20Y02E60/16Y02E70/30
Inventor 寇攀高张军
Owner STATE GRID HUNAN ELECTRIC POWER
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