A nuclear power plant emergency power supply system and power supply control method

Abstract

The invention provides a nuclear power plant emergency power system and a power supply control method, which are used to provide power for important equipment in the nuclear power plant when the existing emergency power supply is lost. The system includes: a control detection unit for real-time detection of the working status of the existing emergency power supply The controller is used for the wind and solar energy storage system that provides power to the controller in severe accident conditions; it is used for the water storage energy storage system that executes the water storage energy storage power generation according to the power generation control command of the controller; after receiving the existing When the emergency power supply is in an invalid working state, the water storage and energy storage system is controlled to generate electricity, and the water storage and energy storage system transmits the generated electric energy to the important equipment of the nuclear power plant, and at the same time controls the discharged water as backup cooling water to the reactor core through the water injection circuit. Heat for cooling. As an emergency power supply for a nuclear power plant, the present invention has better economical efficiency and is convenient for overhaul, test and maintenance compared with a scheme in which a diesel engine is used as an emergency power supply; while improving the overall safety index of the nuclear power plant, it also has economical efficiency.

Description

technical field [0001] The invention relates to the technical field of nuclear safety, and provides emergency power supply supporting safety functions for nuclear power plants. When the nuclear power plant loses normal and standby power, it can provide necessary power support for the safety functions of the nuclear power plant, and can be used as an emergency power supply for preventing heap melting when necessary. The invention relates to a cooling water source, in particular to an emergency power supply system of a nuclear power plant and a power supply control method. Background technique [0002] Nuclear power generation uses the heat energy released by nuclear fission in nuclear reactors to generate electricity. It is an important way to achieve low-carbon power generation and is a green energy source. However, nuclear power generation has high requirements on the reliability of the safety system of nuclear power plants. At present, under abnormal working conditions, nu...

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Problems solved by technology

[0004] Aiming at the problems of high cost and poor safety in the prior art, the present invention provides a necessary power support for the safety function of the nuclear power plant when the nuclear power plant loses its normal and backup power supply, and serves as an emergency response to prevent heap melting. Nuclear power plant emergency power system for cooling water source and power supply control method

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