Open Winding Variable Structure Motor System

Abstract

The invention relates to an open winding variable structure motor system, including a main controller, a variable structure driver and an open winding motor; the main controller receives control instructions and feedback information from the open winding motor, and generates power drive and drive topology Variable structure instruction, the variable structure driver transforms the driving topology according to the driving topology variable structure instruction, the variable structure driver connects multiple windings of the open winding motor in series to form a new one-phase winding, and the variable structure driver drives according to the power command to drive an open winding motor. The open winding variable structure motor system of the present invention fully utilizes the advantages of variable structure drivers and multi-phase motors with variable structure, high power density, and high reliability, and can meet the needs of different working conditions. Compared with multi-motor + clutch structure , can effectively reduce the weight and volume of the motor drive system, effectively improve power density and reliability, and eliminate mechanical noise.

Description

technical field [0001] The invention relates to an open winding variable structure motor system, which belongs to the field of motors. Background technique [0002] With the development of high power density magnets and power devices, the application of motor systems, especially open winding motors (permanent magnet independent winding motors) systems, continues to expand, such as the development of all-electric vehicles, all-electric tanks, and all-electric ships. etc. As the key power mechanism and propulsion power source of the above-mentioned systems, the motor system has complex and often changeable working conditions, such as high-speed, low-speed, light load, overload, normal and fault conditions. [0003] In the prior art, in order to make the motor system meet the requirements of different driving conditions, multiple motors are usually coupled through a force or speed synthesizer, such as a high-speed motor + a low-speed motor through a clutch, and the correspondin...

AI Technical Summary

Problems solved by technology

Although this structure can improve the requirements of different working conditions, because the two motors do not work at the same time, and the clutch is very large in size and weight in order to meet various working conditions, the power density of the system is very low, and due to the existence of the clutch , which makes the system less efficient, and also produces greater mechanical vibration and noise

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