Permanent magnet synchronous motor fractional order sliding mode control method based on GPI observer
A permanent magnet synchronous motor, fractional-order sliding mode technology, applied in motor control, motor generator control, AC motor control and other directions, can solve problems affecting sliding mode performance, etc. easy to estimate effect
Inactive Publication Date: 2021-08-20
JIANGSU UNIV
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Problems solved by technology
However, due to the disadvantages of chattering phenomenon, as well as the uncertainty of parameter perturbation and load disturbance in practical engineering applications, the performance of sliding mode in practical applications is greatly affected.
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[0048]The invention discloses a fractional-order sliding mode control method of a permanent magnet synchronous motor based on a GPI observer, which is used for the speed regulation control of the permanent magnet synchronous motor. In order to make the purpose, technical solutions and beneficial effects of the present invention more clear and definite, the present invention will be further elaborated below through the accompanying drawings and research examples.
[0049] figure 1 It is the overall block diagram of the permanent magnet synchronous motor vector control system of the present invention, and it comprises: (1) permanent magnet synchronous motor module; (2) speed loop module; (3) two current loop modules; (4) coordinate transformation module; (5) ) SVPWM module; (6) Inverter module.
[0050] Table 1 Permanent magnet synchronous motor parameters
[0051]
[0052] Based on the above-mentioned control system, the present invention explains the speed regulation cont...
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The invention discloses a novel permanent magnet synchronous motor compound control method combining a GPI observer and fractional order sliding mode control, and belongs to the field of permanent magnet synchronous motor control. The method mainly comprises the steps that 1, fractional calculus is introduced into a sliding mode control algorithm to form a fractional order sliding mode controller (FSMC), and the fractional order sliding mode controller is applied to a permanent magnet synchronous motor speed regulation control system; and 2, a generalized proportional-integral observer (GPIO) is introduced to observe the disturbance of the speed regulation system of the permanent magnet synchronous motor and carry out feed-forward compensation to realize speed regulation control of the motor. The method has the advantages that firstly, the proposed fractional order sliding mode controller can effectively weaken buffeting and improve the anti-interference capability by utilizing the characteristics of fractional order calculus; and secondly, the GPIO is introduced to estimate the lumped disturbance of the system and carry out feed-forward compensation, so that the system has better anti-interference performance.
Description
technical field [0001] The invention relates to the technical field of design motor speed regulation control, and mainly relates to a fractional-order sliding mode control method of a permanent magnet synchronous motor based on a GPI observer. Background technique [0002] Permanent magnet synchronous motor has the advantages of high reliability, high mechanical strength, simple structure and light weight, so it is widely used in industry, aerospace, military and other fields, but it also puts forward higher requirements for motor control performance. As a multivariable and strongly coupled nonlinear system, the control performance of permanent magnet synchronous motor is easily affected by the parameter changes of the system itself and external disturbances. In order to improve the performance of permanent magnet synchronous motors, scholars from various countries have conducted extensive research on the control strategy of permanent magnet synchronous motors. [0003] In ...
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IPC IPC(8): H02P21/00H02P21/13H02P25/022
CPCH02P21/0007H02P21/0003H02P21/13H02P25/022H02P2207/05
Inventor 丁世宏贲鞠磊刘陆
Owner JIANGSU UNIV