Emergency power source current conversion device for nuclear power station and control method
A technology of emergency power and converter devices, which is applied in the direction of emergency power supply arrangements, circuit devices, irreversible AC power input conversion to DC power output, etc., and can solve the problem of limited capacity, failure of emergency power converter devices to supply power, and poor shock resistance and other issues to achieve the effect of low application cost, online replacement and maintenance, and improved seismic performance
Active Publication Date: 2011-10-05
CHINA GENERAL NUCLEAR POWER CORP +1
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[0020] The purpose of the embodiments of the present invention is to provide a nuclear power plant emergency power converter device, which aims to solve the problem that the entire nuclear power plant emergency power converter device fails when a certain part of the existing nuclear power plant emergency power converter device fails. Problems with power supply, limited capacity, and poor shock resistance
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[0099] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0100] The emergency power supply converter device of the nuclear power plant includes:
[0101] Multiple converter units, the AC side of each converter unit is connected to the busbar, and the DC side of each converter unit is connected to the DC busbar;
[0102] A sampling unit that is respectively connected to the output end of each converter unit and collects the output electrical signal of each converter unit;
[0103] A plurality of built-in controllers respectively connected to the multiple converter units are used to control the IGBT switch on and off times of the multiple converter units ...
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The invention provides an emergency power source current conversion device for a nuclear power station and a control method, applicable to the technical field of nuclear power station current conversion. The emergency power source current conversion device for the nuclear power station comprises multiple current conversion units, a sampling unit, a plurality of built-in controllers and a central controller. The built-in controllers make the multiple current conversion units synchronously work in current equalization and voltage stabilization under the control of the central controller. When one current conversion unit stops working due to faults, other current conversion units can still normally work independently, so that the reliability of the emergency power source current conversion device for the nuclear power station is improved. The emergency power source current conversion device for the nuclear power station is designed in a modular manner and is convenient to expand, the capacity of the emergency power source current conversion device for the nuclear power station is enhanced, and meanwhile, online replacement and maintenance can be realized. In addition, in the invention, an anti-seismic structure is adopted for the emergency power source current conversion device for the nuclear power station. The anti-seismic structure has excellent anti-seismic performance and can ensure that the emergency power source current conversion device works normally during earthquakes.
Description
technical field [0001] The invention belongs to the technical field of the key technology of the million-kilowatt advanced pressurized water reactor nuclear power plant, new high-capacity, high-power batteries and related products, and the fixed structure of nuclear power plant equipment, and particularly relates to the key components of the new high-efficiency energy conversion technology and a nuclear power plant emergency response system. The anti-seismic structure of the converter device of the power supply system. Background technique [0002] The invention belongs to the technical field of the key technology of a million-kilowatt advanced pressurized water reactor nuclear power plant, new high-capacity, high-power batteries and related products, and the fixed structure of nuclear power plant equipment. The anti-seismic structure is used for the converter device of the emergency power supply system of the nuclear power plant. [0003] A nuclear power plant is a power p...
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IPC IPC(8): H02J9/00H02M7/04H02B1/54
Inventor 李吉生王成铭朱钢王永年胡敏华
Owner CHINA GENERAL NUCLEAR POWER CORP
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