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A variable winding drive system of switched reluctance motor and online soft switching method

A switched reluctance motor and drive system technology, applied in the direction of motors, control drives, control systems, etc., can solve the problems of not being able to meet low-speed, high-torque and wide speed-regulating range at the same time, and cannot change the series-parallel connection mode, etc. Safe and smooth switching, increased fault ride-through capability, and improved speed regulation performance

Active Publication Date: 2021-11-02
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a switched reluctance motor variable winding drive system and an online soft switching method. Technical Problems Requirements for Torque and Wide Speed ​​Range

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  • A variable winding drive system of switched reluctance motor and online soft switching method
  • A variable winding drive system of switched reluctance motor and online soft switching method
  • A variable winding drive system of switched reluctance motor and online soft switching method

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Embodiment Construction

[0051] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0052] Such as figure 1 As shown, the embodiment of the present invention provides a switched reluctance motor variable winding drive system, including: a controller, a drive module, a power converter and a variable winding module; the controller is used to receive the switched reluctance motor winding current signal and The rotor position signal, and provide two types of drive control signals ...

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Abstract

The invention discloses a switching reluctance motor variable winding driving system and an online soft switching method, belonging to the field of online soft switching. The system includes a controller, a drive module, a power converter and a variable winding module; wherein, the invented variable winding module can change the connection mode of each coil in the phase winding of the switched reluctance motor online. The invention utilizes the switching reluctance motor driving topology structure with online winding series-parallel switching capability combined with the online soft switching method, and through the variable winding module, the connection mode of the phase winding of the switched reluctance motor is changed online, thereby realizing the control of the phase inductance value , which effectively realizes the optimization of the torque performance at low speed and the performance improvement at high speed; the online series-parallel switching of winding coils and the removal of faulty windings are carried out in the interval where the phase current of the switched reluctance motor is zero, and online soft switching is realized. , expanding the speed range and motor fault tolerance.

Description

technical field [0001] The invention belongs to the technical field of online soft switching, and more specifically relates to a variable winding driving system of a switched reluctance motor and an online soft switching method. Background technique [0002] Automobiles are an indispensable means of transportation in people's lives. Traditional internal combustion engine vehicles use gasoline as fuel, which will cause great pollution to the environment during driving. Due to the variety of sources of electric energy and the existence of many environmentally friendly ways of obtaining electric energy, such as wind power, hydropower, solar power, etc., electric vehicles are far superior to internal combustion engine vehicles in terms of environmental protection. As the core of electric vehicles, the motor has become one of the research hotspots. Among them, the permanent magnet motor needs to use rare earth materials, an important strategic resource, and the permanent magnet h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P25/18H02P25/092H02P29/028B60L15/20
CPCB60L15/20H02P25/188H02P29/028H02P25/092Y02T10/64Y02T10/72
Inventor 甘醇陈宇曲荣海倪锴
Owner HUAZHONG UNIV OF SCI & TECH
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