Permanent magnet synchronous motor speed adjusting system based on internal model control and design method thereof

A technology of permanent magnet synchronous motor and speed control system, which is applied in the direction of control system, control generator, vector control system, etc., and can solve problems such as large load disturbance and large inertia change

Inactive Publication Date: 2018-08-03
SOUTHEAST UNIV
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Problems solved by technology

However, the parameter design of ordinary internal model control filters needs to consider the reliability and followability of the controller. It is difficult to take into account both performances at the same time with only one adjustable filter parameter. Therefore, it is necessary to Ma

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  • Permanent magnet synchronous motor speed adjusting system based on internal model control and design method thereof
  • Permanent magnet synchronous motor speed adjusting system based on internal model control and design method thereof
  • Permanent magnet synchronous motor speed adjusting system based on internal model control and design method thereof

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Embodiment Construction

[0069] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0070] Such as figure 1 As shown, the permanent magnet synchronous motor speed control system based on internal model control includes

[0071] Fuzzy adaptive speed internal model controller, two current PI regulators ASR, reverse Parker transform, SVPWM vector pulse width modulation module, inverter, permanent magnet synchronous motor PMLSM, Clarke transform, Parker transform, current sensor and speed sensor.

[0072] The output of the speed sensor is connected with the fuzzy adaptive speed internal model controller, the output of the fuzzy adaptive speed internal model controller is connected with the q-axis current PI regulator ASR, and the d-axis and q-axis PI regulator ASR are respectively transformed by reverse Pike Then it is connected with the SVPWM vector pulse width modulation module and the inverter in tu...

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Abstract

The invention discloses a permanent magnet synchronous motor speed adjusting system based on internal model control and a design method thereof. The method includes the steps of designing a standard speed internal model controller, designing a dual-port speed internal model controller, designing a fuzzy self-adaptive speed internal model controller, and determining a final q-axis current referencevalue according to the designed fuzzy self-adaptive speed internal model controller to realize the dual-closed-loop vector control of a motor. The influences caused by motor model mismatch and external interference on motor operation are solved, the motor control effects of enhancing the control system speed tracking performance and anti-interference performance are realized, and speed tracking and load disturbing can be well realized. The influences caused by model mismatch and external interference on motor operation can be overcome, and therefore the robustness and stability of the systemare improved.

Description

technical field [0001] The invention relates to a design method of an AC motor control system, in particular to a permanent magnet synchronous motor speed regulation system based on internal model control and a design method thereof. Background technique [0002] The permanent magnet synchronous motor has high application value because of its simple structure, high precision and small volume. As a relatively mature control method, vector control can better realize current decoupling, so it has been widely used in various fields of motor control. [0003] The general vector control method includes the speed loop and the current loop, which are realized by three PI controllers. However, in the actual application process, due to the existence of accurate modeling and external interference, the PI controller cannot achieve fast speed. Tracking, so in some occasions that require high precision, higher requirements are put forward for the control system. [0004] In actual indus...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P21/18
CPCH02P21/0017H02P21/18
Inventor 余海涛曾成张维胡敏强王玉晨
Owner SOUTHEAST UNIV
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