Power supply and distribution intelligent detection system for ship

Abstract

The invention discloses a power supply and distribution intelligent detection system for a ship. The power supply and distribution intelligent detection system comprises an on-off detection module, an electric quantity acquisition module, an industrial controller, a power supply module and a CAN (Controller Area Network) bus, wherein the electric quantity acquisition module comprises a three-phase intelligent ammeter and a current acquisition module; the on-off detection module and an electric parameter detection module are used for detecting the electric parameter of each transmission line of a main power distribution board, the on / off states of a circuit breaker and a fuse, the closure situations of the relay and the contactor, and the contact position of a control switch. Acquired data are uploaded to the industrial controller through the CAN bus, and the industrial controller is used for making analysis and judgment through circuit fault diagnosis software based on a continuous hidden Markov model and performing short-term state prediction on the power supply and distribution system of the ship through a prediction mechanism based on a grey model. The power supply and distribution intelligent detection system has the beneficial effects that by adopting modular design, high portability and high generality are realized; fault points are accurately located to fault devices, thereby increasing the detection accuracy; the grey model prediction mechanism is self-adaptive.

Description

technical field [0001] The invention relates to a detection system, in particular to an intelligent detection system for power supply and distribution of ships. Background technique [0002] Since the steering gear, auxiliary engines, armaments, electronics, lighting, ventilation, demagnetization, etc. on the ship all need electricity, the reliability of the power supply and distribution system and the continuity of power supply play a decisive role in the combat effectiveness of the ship. . Type 069 boats adopt an ungrounded power distribution system, that is, a three-phase three-wire insulated power distribution system. Although this power distribution system has many advantages, it has disadvantages such as overvoltage and difficulty in fault location in actual operation. As far as the composition and structure of the 069 boat itself is concerned, there are the following problems: (1) The number of components is large, and it takes a long time to detect and eliminate fau...

AI Technical Summary

Problems solved by technology

Type 069 boats adopt an ungrounded power distribution system, that is, a three-phase three-wire insulated power distribution system. Although this power distribution system has many advantages, it has disadvantages such as overvoltage and difficulty in fault location in actual operation.

As far as the composition and structure of the 069 boat itself is concerned, there are the following problems: (1) The number of components is large, and it takes a long time to detect and eliminate faults; (2) The lack of detection equipment and means makes it difficult to eliminate the cause of faults; There are uncertain factors in life and reliability

[0006] Condition monitoring and early fault diagnosis are realized based on the instantaneous data of monitoring points, but it is difficult to understand the behavior characteristics of the system. In practice, it is necessary to use the historical information and dynamic information of the power supply and distribution system to realize the future operation of the power supply and distribution system. State and development trend can be estimated to prevent catastrophic failure, so an effective prediction model is needed to monitor the change trend of power supply and distribution system degradation

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