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Nonlinear torque suppression compensation system of switched reluctance motor

A technology of switched reluctance motor and compensation system, applied in control system, vector control system, motor generator control, etc., can solve problems such as torque ripple and high noise, and achieve guaranteed dynamic characteristics, fast convergence speed, and simple implementation. Effect

Active Publication Date: 2020-06-19
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

However, due to the structural characteristics of double salient poles and the highly nonlinear magnetic circuit model, the switched reluctance motor will have a series of problems such as large noise and serious torque ripple during operation.

Method used

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  • Nonlinear torque suppression compensation system of switched reluctance motor
  • Nonlinear torque suppression compensation system of switched reluctance motor
  • Nonlinear torque suppression compensation system of switched reluctance motor

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0041] Such as figure 1 As shown, the present invention is a double closed-loop series controller, that is, a PI speed loop controller and a PI current loop controller, the outer loop is a speed loop, and the inner loop is a current loop.

[0042] The two PI controllers and the torque compensator of the present invention are implemented on the dSPACE platform of the semi-real-time simulation system. The specific model used is DS1202. The calculation frequency of its real-time processor can reach 2GHZ, which can meet the calculation requirements of the system algorithm. When the rotor The more the sampling iteration points of the position are, the more obvious the effect will be. At the same time, it will increase the calculation pressure of the processor. In actual appli...

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Abstract

The invention discloses a nonlinear torque suppression compensation system of a switched reluctance motor. The nonlinear torque suppression compensation system comprises a PI speed controller, a TSF torque distributor, a nonlinear space iterative torque compensator, a PI current controller, a power converter and the switched reluctance motor which are sequentially connected. Compared with a double-closed-loop PID control motor speed regulation system, only one torque compensator is additionally arranged, torque pulsation in the operation process of the switched reluctance motor can be effectively restrained, dynamic characteristics of the motor are guaranteed, and the accurate model of the motor does not need to be known.

Description

technical field [0001] The invention belongs to the field of motor control, in particular to a non-linear torque suppression compensation system of a switched reluctance motor. Background technique [0002] As a new generation of speed control system, the switched reluctance motor speed control system has the advantages of simple structure, low cost, wide speed range and high efficiency compared with the traditional motor speed control system. It is very suitable for electric vehicle drive, aviation Industry, servo system and other fields. However, due to its double-saliency structural characteristics and highly nonlinear magnetic circuit model, a series of problems such as large noise and severe torque ripple will appear in the operation of the switched reluctance motor. If the torque ripple of the motor can be effectively suppressed by the control algorithm, the dynamic characteristics of the switched reluctance motor will be further improved, and the application value of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/098H02P21/00H02P21/20
CPCH02P25/098H02P21/0003H02P21/20
Inventor 哀薇林沛霖李向阳
Owner SOUTH CHINA UNIV OF TECH
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