Marine nuclear power platform electric generator stator grounding fault degree diagnosis method and system

A generator stator and ground fault technology, which is used in motor generator testing, measurement of electricity, and measurement of electrical variables, etc., can solve problems such as the inability to reflect the degree of damage caused by ground faults, and the inability to meet the requirements for safe operation of nuclear power platforms, so as to ensure safety. Run, ensure the effect of accuracy

A generator stator and ground fault technology, which is used in motor generator testing, measurement of electricity, and measurement of electrical variables, etc., can solve problems such as the inability to reflect the degree of damage caused by ground faults, and the inability to meet the requirements for safe operation of nuclear power platforms, so as to ensure safety. Run, ensure the effect of accuracy

CN113203950AActive Publication Date: 2021-08-03HUAZHONG UNIV OF SCI & TECH
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  • Marine nuclear power platform electric generator stator grounding fault degree diagnosis method and system
  • Marine nuclear power platform electric generator stator grounding fault degree diagnosis method and system
  • Marine nuclear power platform electric generator stator grounding fault degree diagnosis method and system

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[0038] In order to make the objectives, technical solutions and advantages of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely intended to illustrate the invention and are not intended to limit the invention. Further, the technical features according to each of the various embodiments described below can be combined with each other as long as they do not constitute a collision between each other.

[0039] The degree of diagnosis of the stator ground fault of the ocean nuclear power platform needs to include generator stator ground faults on the effect of their own safety operation and the degree of insulation safety of direct distribution system. Among them, the impact of failure to generator safety operation is expressed by ground fault current, and the impact of fault on system insulation security is exp...

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Abstract

The invention discloses a marine nuclear power platform electric generator stator grounding fault degree diagnosis method and system, and belongs to the field of marine nuclear power platform power system protection. According to the method, an electric generator stator grounding fault diagnosis function integrating grounding fault current and system overvoltage is established, and the harm degree of electric generator stator winding grounding faults to electric generator operation safety and power distribution network insulation safety can be reflected at the same time; effective reference is provided for implementation of a self-adaptive electric generator tripping control mode according to the fault degree for marine nuclear power platform electric generator stator grounding protection, safe operation of a marine nuclear power platform electric power system is guaranteed, and technical reference is provided for other electric generator stator grounding protection improvement methods.

Description

Technical field [0001] The present invention belongs to the field of power system protection of marine nuclear power platform, and more particularly to a marine nuclear power platform generator stator ground fault degree diagnosis method and system. Background technique [0002] The ocean nuclear power platform is a sea-moving power supply platform, which can be used for power supply, power supply, sea water, and desalination of ocean island. The low pressure system in the marine nuclear power platform has been directly connected to the topology. Since the nuclear reactor sensitive load in the station is high, when the power supply reliability is required, it is desirable to avoid sudden shocks to the system in mild failure, and can be quickly Completing the maintenance process recovery system Normal power supply, this requires self-adaptation to determine the control mode in different ground faults. [0003] However, in the current engineering application, it is limited by the m...

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Application Information

Patent Timeline
03 Aug 2021
Publication
CN113203950A
IPC
G01R31/34; G01R31/52; G01R31/56
CPC
G01R31/343; G01R31/56; G01R31/52
Inventors
尹项根; 王义凯