A Method of Arranging Acceleration of Permanent Magnet Synchronous Motor Based on Torque Observation and Compensation

A permanent magnet synchronous motor, torque observation technology, applied in the control of generator, motor control, motor-generator control and other directions, to optimize the adjustment time and improve the operating performance.

Active Publication Date: 2022-03-11
杭州敏动科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The acceleration process is generally arranged according to the set acceleration time, but the set acceleration time is not necessarily the fastest adjustment time

Method used

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  • A Method of Arranging Acceleration of Permanent Magnet Synchronous Motor Based on Torque Observation and Compensation
  • A Method of Arranging Acceleration of Permanent Magnet Synchronous Motor Based on Torque Observation and Compensation
  • A Method of Arranging Acceleration of Permanent Magnet Synchronous Motor Based on Torque Observation and Compensation

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Embodiment

[0035] Embodiment: A permanent magnet synchronous motor acceleration arrangement method based on torque observation compensation, first determine the kinematic equation of the permanent magnet synchronous motor, determine its input as the q-axis current, and use the sensor to obtain the motor load torque and the real time of the motor rotor After the position, use the Kalman filter to observe the real-time torque of the motor. When the observed value is stable, when an external input speed change command is detected, a transition process is arranged for the motor acceleration. The whole process has three stages, namely: start buffer stage, normal acceleration stage, and end buffer stage. During the three phases, different cycle numbers and acceleration quantities are determined by the detected real-time torque values. According to the real-time torque value, the present invention enables the motor to accelerate smoothly to the target speed within the fastest speed by adjusting...

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Abstract

The invention discloses a method for arranging the acceleration of a permanent magnet synchronous motor based on torque observation and compensation, comprising the following steps: step 1, building a load torque observer based on a Kalman filter; The algorithm obtains the real-time load torque of the motor; step 3, performs average filtering calculation on the real-time load torque value of the motor, and judges whether the motor load torque value is stable; step 4, when the motor load torque value is stable, it is necessary to change the speed , run the acceleration scheduler. The invention can improve the operating performance of the system, optimize the adjustment time of the system for the speed command, and enable the system to track the target speed setting in the shortest time.

Description

technical field [0001] The invention relates to the technical field of servo control of permanent magnet synchronous motors, in particular to a method for arranging the acceleration of permanent magnet synchronous motors based on torque observer compensation. Background technique [0002] With the development of electronic device technology and permanent magnet materials, permanent magnet synchronous motors rely on their simple structure, can run stably at different speeds, and have the advantages of small size. Permanent magnet synchronous motors have occupied 7% of my country's motor market More than ten, and the proportion is constantly increasing. Permanent magnet synchronous motors have been used in "high-tech" fields such as aerospace, deep diving, and military industry. Compared with brushed motors, permanent magnet synchronous motors change mechanical commutation into electronic commutation, so that there will be no sparks generated when the motor commutates. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/08H02P21/13H02P21/18H02P25/022
CPCH02P6/08H02P21/13H02P21/18H02P25/022H02P2207/05H02P2205/07
Inventor 邢科新林叶贵权欣文李星宏
Owner 杭州敏动科技有限公司
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