Switch-on angle and switch-off angle adjusting method for switched reluctance motor

A reluctance motor, adjusting switch technology, applied in electronic commutation motor control, electrical components, electronic commutator and other directions, can solve the problems of energy waste, inability to automatically adapt to different environments, small battery cruising range, etc. The effect of cruising range

Inactive Publication Date: 2013-12-11
SOUTHEAST UNIV
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Problems solved by technology

[0003] The battery of the switched reluctance motor currently has a small cruising range and a low battery utilization rate. At present, little attention is paid to the energy recovery in the reflow stage. Generally, t...

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  • Switch-on angle and switch-off angle adjusting method for switched reluctance motor
  • Switch-on angle and switch-off angle adjusting method for switched reluctance motor
  • Switch-on angle and switch-off angle adjusting method for switched reluctance motor

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Embodiment Construction

[0026] Below in conjunction with the present invention will be further described.

[0027] The method for adjusting the turn-on angle and turn-off angle of the switched reluctance motor of the present invention realizes a dynamic adaptive environment by adding the two feedbacks of the current and voltage feedback interface circuit and the position feedback interface circuit, including the following steps:

[0028] 1) The current and voltage detection circuit 6 collects the initial values ​​of current and voltage in the excitation phase, the freewheeling phase and the return phase, and transmits them to the current and voltage feedback interface circuit 7, and the current and voltage feedback interface circuit 7 filters the initial values ​​of the current and voltage The Hall sensor in the position feedback interface circuit 5 collects the speed of the motor, and at the same time estimates the load according to the motor model, and sends the speed and load to the single-chip dat...

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Abstract

The invention discloses a switch-on angle and switch-off angle adjusting method for a switched reluctance motor. In excitation, flow-continuing and flow-returning working periods of the switched reluctance motor, currents and voltages of the three periods are measured and transmistted to a single-chip microcomputer; an energy recovery efficiency is calculated through the single-chip microcomputer; the energy recovery efficiency is compared with an optimal-parameter table stored in the single-chip microcomputer; and according to the comparison result, switch-on and switch-off angles are adjusted through a drive circuit so that the energy recovery efficiency is approximate to the maximum energy recovery efficiency. The switch-on angle and switch-off angle adjusting method for the switched reluctance motor is high in practicality so that the motor is enabled to reach the maximum energy recovery efficiency at a significantly high speed.

Description

technical field [0001] The invention belongs to the field of motor control, and relates to a method for controlling the turn-on angle and turn-off angle of a switched reluctance motor. Background technique [0002] The structure of the switched reluctance motor is simple and firm, the operation is reliable, and the efficiency is high. The inrush current phenomenon that occurs when the induction motor starts; the speed range is wide, the control is flexible, and the four-quadrant operation can be easily realized. It has strong regenerative braking capability and has high efficiency in a wide range of speed and power. It is conducive to energy saving and consumption reduction; it can work at extremely high speed; it can run without phase, and has strong fault tolerance. At present, the application of switched reluctance motors in military and civilian industries has achieved some results, but there are still some problems to be further studied and solved, mainly including rot...

Claims

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Application Information

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IPC IPC(8): H02P6/00H02P6/16
Inventor 夏敏钟锐
Owner SOUTHEAST UNIV
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