Rotary speed adaptive robust control system and method for ultra-high-speed permanent magnet synchronous motor

A permanent magnet synchronous motor, self-adaptive and robust technology, applied in the control system, vector control system, motor generator control, etc., can solve the problems of system load torque out of step, unable to obtain dynamic performance, start failure, etc., to achieve The effect of reducing influence, reliable speed control, and improving stability

Active Publication Date: 2016-07-20
NANJING UNIV OF SCI & TECH
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Problems solved by technology

V/f control has the problem of instability, and it is very dependent on the selection of speed reference curve and V/f curve parameters. Since V/f belongs t

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  • Rotary speed adaptive robust control system and method for ultra-high-speed permanent magnet synchronous motor
  • Rotary speed adaptive robust control system and method for ultra-high-speed permanent magnet synchronous motor
  • Rotary speed adaptive robust control system and method for ultra-high-speed permanent magnet synchronous motor

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[0032] The present invention will be further described below in conjunction with accompanying drawing.

[0033] to combine figure 1 , a speed adaptive robust control system for ultra-high-speed permanent magnet synchronous motors, including an adaptive robust controller, a voltage vector selection module, a dead-zone compensation module, a pulse width modulation (PWM) control module, a CLARK converter, a rotation transform controller, stator flux calculation module, torque calculation module and sensorless speed estimation module;

[0034] The adaptive robust controller is used to control the motor speed, its input is the error value between the output speed of the sensorless speed estimation module and the set speed, and the output control signal is sent to the voltage vector selection module;

[0035] The voltage vector selection module is used to determine the basic voltage control signal, and its input is the output value of the adaptive robust controller, the error value...

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Abstract

The invention relates to a rotary speed adaptive robust control system and method for an ultra-high-speed permanent magnet synchronous motor. The method comprises the steps of determining a motor rotary speed estimated value and a motor rotary speed error value by adopting a sensorless rotary speed estimation algorithm; determining a corresponding control amount by adopting an adaptive robust rotary speed control algorithm; determining a stator flux, a torque feedback value, flux error and torque error through motor three-phase current and three-phase voltage; performing voltage vector selection to obtain a basic voltage control signal; determining rotor position information through the sensorless rotary speed estimation algorithm; obtaining a three-phase compensation voltage by adopting a dead region compensation algorithm; combining the basic voltage control signal output by a voltage vector selection module with the three-phase compensation voltage, and performing PWM control on the motor; and repeatedly carrying out the steps until the motor rotary speed achieves the index. According to the rotary speed adaptive robust control method, the rotary speed estimation algorithm, the adaptive robust speed control algorithm, and the dead region compensation algorithm are adopted, so that the rapid, stable and reliable rotary speed control of the ultra-high-speed permanent magnet synchronous motor is effectively realized.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a speed adaptive robust control system and method for an ultra-high-speed permanent magnet synchronous motor. Background technique [0002] The development of modern science and technology and industrial technology has made ultra-high-speed machining and ultra-precision machining the two directions of future manufacturing development. Among them, ultra-high-speed machining not only represents extremely high productivity, but also can significantly improve the machining accuracy and surface quality of parts. Ordinary motors cannot meet these processing requirements, and people's demand for ultra-high-speed motors is increasing day by day. Ultra-high-speed motors are widely used in industrial manufacturing, aerospace, energy, shipbuilding, medical and defense industries, and the application prospects are very broad. Ultra-high-speed motors mainly refer to motors with a rated speed abo...

Claims

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Application Information

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IPC IPC(8): H02P21/00
CPCH02P21/0003
Inventor 吴益飞仲露陈永亮郭健陈庆伟李胜王翔蔡俊杰徐航宇王保防
Owner NANJING UNIV OF SCI & TECH
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