A 15-phase motor sub-channel control system and control method

Abstract

The invention relates to a 15-phase motor subchannel control system and a control method used for directing polyphase motor subchannel control of a marine electric propulsion system. The system comprises a control system master station which comprises a logic interlock control unit, a data communication unit and a fault alarming protection unit. The method specifically includes three-channel, dual-channel and single-channel control. According to the method, the marine automatic control technology is introduced into subchannel control of a polyphase motor on the basis of deep analysis of operating principles of main components of the marine electric propulsion system, and the polyphase motor subchannel control method is proposed for the first time. The system and the method have the advantages that aiming at coordination control among functional units of the polyphase motor, the problem about pulse synchronization among drive units and the problem about sharing of signals of rotating speed and the like are analyzed, single-channel, dual-channel and three-channel operation and operation model switching are researched, the key technology of the polyphase marine electric propulsion system is broken through, and design capability of the marine electric propulsion system is achieved.

Description

technical field [0001] The invention belongs to the technical field of design of a monitoring system for a ship electric propulsion system, and in particular relates to a 15-phase motor sub-channel control system and a control method. Background technique [0002] The ship electric propulsion system is a complex system, which is an effective synthesis of ship power and ship electric power, rather than a simple combination. The electric propulsion system can manage the energy of the whole ship in a unified manner, comprehensively utilize and effectively distribute it. In this mode, the propulsion motor actually becomes a power user in the onboard grid, and the prime mover and propulsion system are organically combined through the power system. The task of system integration is to optimize the matching of the main equipment of this organic system, so as to give full play to the overall advantages of the system, and coordinate and control it through the PMS and monitoring syst...

AI Technical Summary

Problems solved by technology

The power units in each channel of the multi-phase motor are powered by an independent power main circuit, and the power main circuits are respectively controlled by a drive unit. In addition to controlling the corresponding power main circuit to supply power to the corresponding power unit, the drive units also control each other. In order to give full play to the performance of the multi-phase motor, it is necessary to cooperate with other functional units with an appropriate operating mechanism. In this way, there is bound to be a problem of coordinated control among the functional units.

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