Motor drive fault-tolerant control device and electric device

Abstract

The present invention provides a motor drive fault-tolerant control device and an electric device. The device comprises a polyphase machine, a direct current source, an instruction sending part, a current sensor, an output sensor, a controller, a driver and a power converter. The polyphase machine winding has (k-1)(i+j) mutually independent polyphase winding units with the same parameters, the power converter has power conversion units correspondingly connected with the polyphase winding units, each polyphase winding unit has k power conversion circuits configured to provide k-way line current to the corresponding polyphase winding units, the driver has (k-1)(i+j) driving units which are respectively connected with power conversion units, the current sensor has current detection units correspondingly connected with the power conversion units, the number of the current detection units configured to detect each phase outputted line current is equal to (i+j), k is a positive integer of larger than 2, j is a positive integer of larger than 1, and i is a redundant number and a natural number.

Description

technical field [0001] The invention belongs to the field of motors, in particular to an electric drive fault-tolerant control device with fault-tolerant function and electric equipment. Background technique [0002] In today's society, the requirements for environmental protection are getting higher and higher, and the environmental protection standards of various equipment are also increasing. In order to better protect the environment, the state has issued various policies and vigorously promoted new energy and renewable energy. [0003] At present, using electric energy as the driving force of various equipment has become the mainstream of equipment development. Electric equipment such as electric vehicles and electric forklifts that use electricity as energy are increasingly favored by manufacturers and consumers. Electric equipment not only has less pollution and can provide electric energy through renewable energy, but also has the advantages of high energy utilizat...

AI Technical Summary

Problems solved by technology

However, the design, manufacture and control methods of high-phase motors are different from traditional design, manufacture and control methods, which not only increases the cost, difficulty and complexity of production, but also cannot be carried out when the relevant technology is not yet mature. Application and popularization restrict the development of high-power motors, electric drives and electric equipment, especially electric military equipment

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