A nuclear powered ship primary circuit emergency power supply system and method

Abstract

The present invention provides an emergency power supply system for a primary circuit of a nuclear power ship. The system includes redundantly configured two-way power supply devices. Each power supply device includes: a low-voltage AC power supply module, a DC power supply module, a first uninterruptible power supply module, a second Two uninterruptible power supply modules, SBO power supply modules; low-voltage AC power supply modules, DC power supply modules and the first uninterruptible power supply The power ship supplies power to the emergency equipment in the first design expansion condition when the first design expansion condition occurs; the second uninterruptible power supply module includes a second battery, a first rectifier charger, and a first inverter; the second battery and the first inverter are used to supply power to the emergency equipment in the second design expansion condition when the nuclear power ship occurs in the second design expansion condition. The invention can reduce the mass and volume of the generator, reduce the space and load requirements of the ship, and further improve the reliability of the electrical system.

Description

technical field [0001] The invention relates to the technical field of electric power in nuclear powered ships, in particular to an emergency power supply system and method for a primary circuit of nuclear powered ships. Background technique [0002] In the first patent (patent name: method and system for providing emergency power supply to nuclear power plants, patent authorization announcement number: CN 102255377A), the following content is introduced: [0003] Nuclear power and nuclear power ships belong to the new development direction of my country's nuclear power industry, and there are no mature products and operating cases yet. The closest existing base to nuclear power and nuclear power ships is the second-generation nuclear power plants that are currently widely commercialized. [0004] In the second-generation nuclear power design, the power supply is the power source for the operation of the nuclear power plant, and the concept of defense in depth should be ref...

AI Technical Summary

Problems solved by technology

[0020] 1) The battery energy storage system has a large volume and takes up a lot of space, so it is not suitable for occasions where the layout space is limited;

[0021] 2) The battery energy storage system is heavy and not suitable for placing on offshore platforms such as ships;

[0022] 3) A large number of batteries in the battery energy storage system increase the requirements for HVAC design and increase the risk of hydrogen explosion

[0025] For some valves related to the passive system and other loads that do not require uninterrupted power supply, under normal circumstances, if the power supply is supplied by the UPS (uninterruptible power supply) power supply scheme shown in this patent, the system capacity will be increased, and the corresponding charger, inverter The capacity, volume and quality of the transformer, bypass transformer, power distribution cabinet and battery pack will increase, increasing the demand for space and load on the ship

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