Collector power supply system for GIS
A technology of power supply system and collector, applied in the direction of current collectors, electric vehicles, electrical components, etc., can solve problems such as unstable operation of the power supply system, electromagnetic interference, etc., and achieve the effect of ensuring normal power supply, absorbing interference, and solving unstable operation
Pending Publication Date: 2022-04-12
西安西电高压开关有限责任公司 +1
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Problems solved by technology
[0004] In order to solve the above technical problems, this application provides a power supply system for GIS collectors to solve the problem of unstable operation of the power supply system due to electromagnetic interference
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[0031] The electronic transformer has the advantages of small size, light weight, no magnetic saturation, no secondary open circuit, and can be easily combined with primary high-voltage switchgear, which effectively improves the integration of equipment, reduces land use, and is convenient for installation and transportation. It has a wide range of applications market prospects. With the continuous maturity of technology, it has been successfully applied in AIS (Air Insulated Switchgear, air insulated switchgear) substations in recent years. Installed on the shell of GIS equipment, the collector and power supply are in an environment with severe electromagnetic pollution, and the power supply connection of the collector is for reference figure 1 , the power supply 10 directly supplies power to the collector 20 through an external power supply, and a fast transient overvoltage up to hundreds of millions of hertz will be generated in the GIS during the operation of the isolating...
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The invention discloses a collector power supply system for a GIS, the collector power supply system for the GIS adopts a first power supply module and an energy storage module as a common power supply of a collector, interference caused by on and off of an isolation switch is not involved in a power supply loop, the interference of the isolation switch is prevented from entering the whole loop through an electronic component, and the reliability of the power supply system is improved. And the energy storage module can balance the disturbance in the loop and further absorb the interference, so that the problem of unstable operation of the power supply system caused by the electromagnetic interference is solved. Meanwhile, when the electric energy converted by the first power supply module is insufficient or the first power supply module breaks down, the energy storage module can be independently used as a power source to supply power to the collector, the reliability of the collector power supply system for the GIS is improved, further, the system further provides a second power supply module as a third power supply loop, and under the abnormal condition, the collector can be powered by the second power supply module. And the second power supply module is started to supply power to the collector by using an external power supply, so that normal power supply of the collector under special conditions is ensured.
Description
technical field [0001] The present application relates to the technical field of electronic power equipment, and more specifically, relates to a power supply system for a GIS collector. Background technique [0002] GIS (Gas Insulated Metal Enclosed Switchgear and Control Gear) is a metal-enclosed switchgear and control gear that at least partially uses gas above atmospheric pressure as the insulating medium. GIS generally consists of circuit breakers, isolating switches, grounding switches, transformers, lightning arresters, busbars, connectors, and outlet terminals. GIS is usually used in conjunction with electronic transformers, which consist of one or more current or voltage sensors connected to the transmission system and secondary converters to transmit quantities proportional to the measured, which are supplied to measuring instruments and meters and relay protection or control devices. The collector of the electronic transformer is a signal processing circuit that ...
Claims
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Inventor 白世军王传川胡丁文郝艳莉王莉杜涛
Owner 西安西电高压开关有限责任公司