Intelligent fault diagnosis and reconstruction method for ship area distribution power system

A power system and fault diagnosis technology, applied in the direction of measuring electricity, measuring electrical variables, short-circuit testing, etc.
CN112733962AInactive Publication Date: 2021-04-30SHANGHAI MARITIME UNIVERSITY
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI MARITIME UNIVERSITY
Publication Date
2021-04-30
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a ship area distribution power system intelligent fault diagnosis method based on an FWASSO algorithm and a ship area distribution power system intelligent fault reconstruction method based on an optimization particle swarm algorithm. According to the method, a ship area distribution power system is taken as a control object, and diagnosis problems during main switch faults and circuit breaker faults are researched. The method comprises the following steps: according to data fed back by a system sensor, firstly, carrying out preliminary processing on the data through a fuzzy neural network adaptive Kalman filtering method, and removing interference parts such as noise; and optimizing a kernel function and a penalty factor in kernel principal part analysis through a firework algorithm and a particle swarm algorithm to obtain a diagnosis model for improving the model training speed and the classification accuracy, thereby improving the diagnosis speed and reliability. And finally, an optimal path reconstruction model is constructed by using the improved particle swarm algorithm, so that the speed and precision of fault reconstruction are improved.
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Description

technical field

[0001] The invention relates to a fault diagnosis method and a reconfiguration method for a ship's regional power distribution power system, in particular to an intelligent fault diagnosis and a corresponding reconfiguration method for the ship's regional power distribution power system. Background technique

[0002] China is a major shipping and shipbuilding country in the world, and there is a great demand for key technologies in the automation of regional power distribution and power systems in ships. The control methods of the power distribution system in the ship area are mostly conventional control methods, which do not have strong fault-tolerant control capabilities in the face of fault conditions. Among them, the most prone to failure, the highest incidence and the most dangerous nodes are the failure of the main switch and the failure of the circuit breaker. In order to meet the development needs of the ship's power system and ensure the safety and ...

Claims

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