Intelligent control method for operation of switched reluctance motor driver
A switched reluctance motor and intelligent control technology, which is applied in the direction of AC motor control, control system, electrical components, etc., can solve the problems of too conservative protection design and unfavorable advantages of asymmetrical half-bridge topology
Pending Publication Date: 2020-01-31
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology
However, for switched reluctance motors, this protection design is too conservative, which is not conducive to giving full play to the topological advantages of the asymmetrical half bridge
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] In the description of the present invention, it should be noted that for orientation words, such as the terms "center", "horizontal", "vertical
[0020] Aspect", "Length", "Width", "Thickness", "Top", "Down", "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top ", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise" and other indication orientations and positional relationships are based on the orientations or positional relationsh...
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The invention discloses an intelligent control method for operation of a switched reluctance motor driver. The switched reluctance motor driver adopts an asymmetric half-bridge circuit topology, by utilizing the circuit principle and the switched reluctance motor principle, when a certain loop of the switched reluctance motor driving device has an overcurrent fault, a fault phase current is blocked, and current output of other loops is maintained, so other stator magnetic poles generate magnetic fields, and the purpose of statically maintaining locking of the switched reluctance motor is achieved. The method is advantaged in that the method is simple, small in calculation amount and high in reliability, can be implemented on the premise that no position sensor exists and system hardware isnot increased, and provides a processing method for motor static locking when a certain loop of the switched reluctance motor has the overcurrent fault.
Description
technical field [0001] The invention relates to the technical field of motor driver control, in particular to an intelligent control method for the operation of a switched reluctance motor driver. Background technique [0002] At present, due to the advantages of simple and firm structure, flexible control, wide speed regulation range, and position closed-loop operation without position sensor, switched reluctance motors have been increasingly widely used in many fields such as electric vehicles, hoisting machines, and traction machines. . Because the topology of the drive circuit is an asymmetrical half-bridge circuit with independent phases, the current control of each phase is relatively independent and can be controlled separately. When used in hoisting and traction machines, when single-phase overcurrent faults such as inter-turn short circuit occur in the line, other phases are often not damaged and can operate normally. The current switched reluctance motor drivers ...
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IPC IPC(8): H02H7/08H02P25/08
CPCH02H7/0833H02P25/08
Inventor 赵跃东刘宇航牛根艺张浩刘平顺范红伟
Owner CHINA INSTITUTE OF ATOMIC ENERGY