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Permanent magnet synchronous motor servo driving device and position control method thereof

A permanent magnet synchronous motor and servo drive technology, which is used in motor generator control, control of electromechanical transmission, electronic commutation motor control, etc. Issues such as the impact of speed changes

Inactive Publication Date: 2011-05-25
BEIHANG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the calculation of the above-mentioned observer is relatively complicated, and the result of torque observation is affected by the speed change. When the speed changes greatly, the result of torque observation is not accurate.

Method used

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  • Permanent magnet synchronous motor servo driving device and position control method thereof
  • Permanent magnet synchronous motor servo driving device and position control method thereof
  • Permanent magnet synchronous motor servo driving device and position control method thereof

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Embodiment Construction

[0067] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0068] The invention provides a permanent magnet synchronous motor servo drive device, the structure is as follows figure 1 As shown, it mainly includes a controller 1, a power inverter 2, a current sensor 3, a position sensor 4 and a permanent magnet synchronous motor 5, and the current sensor 3, the position sensor 4 and the power inverter 2 are respectively synchronized with the permanent magnet Motor 5 is connected. The controller 1 includes an FPGA control module 101 and a DSP control module 102, both of which are connected through a bus interface, wherein the FPGA control module 101 is connected with the host system 6 to receive a given position signal from the host system 6 . Described FPGA control module 101 is connected with current sensor 3 by AD converter 7, receives current feedback signal, and described FPGA control module 101 is also co...

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Abstract

The invention provides a permanent magnet synchronous motor servo driving device and a position control method thereof. The permanent magnet synchronous motor servo driving device mainly comprises a controller, a power inverter, a current sensor, a position sensor and a permanent magnet synchronous motor. Besides the adoption of the controller structure, correction information of velocity feedback is also used for effectively reducing position following deviation. The position control method for the permanent magnet synchronous motor servo driving device compensates disturbance by designing and using torque observation of velocity model deviation. The implementation is simple, the torque observation result is not affected by velocity change, the quickness of position follow is improved, and the disturbance adaptability of a load is improved.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to a permanent magnet synchronous motor servo drive device and a position control method thereof. Background technique [0002] In the automatic control system, the system whose output can follow the change of the input with a certain accuracy is called a servo system. The servo system consists of a servo drive device and a drive element (ie, a servo motor). A servo system that uses a permanent magnet synchronous motor as a drive element is called a permanent magnet synchronous motor servo system. [0003] As the basic key technology of CNC machine tools and industrial robots, the permanent magnet synchronous servo system plays a decisive role in the technical indicators such as the accuracy and speed of the entire motion control system. In these applications, the widely used method is position control. The position control of permanent magnet synchronous ser...

Claims

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Application Information

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IPC IPC(8): H02P6/08H02P21/14H02P6/06H02P21/13H02P21/18H02P21/22
Inventor 徐东王田苗魏洪兴
Owner BEIHANG UNIV
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