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ECM (electrochemical machining) motor and method for constant torque control based on accurate flux linkage look-up table method

A control method and constant torque technology, applied in the direction of single motor speed/torque control, connection with control/drive circuit, control system, etc., can solve the problems of reducing control accuracy, bus current fluctuation, increasing cost, etc. The effect of improving the protection level, small torque fluctuation and convenient installation

Active Publication Date: 2018-07-13
WOLONG ELECTRIC GRP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, this control method needs to sample the bus current, and the bus current is prone to fluctuations, which reduces the control accuracy and increases the cost

Method used

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  • ECM (electrochemical machining) motor and method for constant torque control based on accurate flux linkage look-up table method
  • ECM (electrochemical machining) motor and method for constant torque control based on accurate flux linkage look-up table method
  • ECM (electrochemical machining) motor and method for constant torque control based on accurate flux linkage look-up table method

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Embodiment Construction

[0038] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0039] Such as Figure 1-2 As shown, an ECM motor with constant torque control based on the precise flux linkage look-up method includes a motor and a drive controller 2 for controlling the operation of the motor. The motor is a magnetic steel plug-in motor with reluctance torque, and the motor The casing and the drive controller 2 are set integrally or separately; the drive controller 2 is provided with a magnetic link λ for storing d with I d , I q The relationship between the d-axis flux motor parameter table and for storing λ q with I d , I q Relationship between the storage module 3 of the q-axis flux linkage motor parameter table.

[0040] In order to achieve smaller volume and better heat dissipation and protection effects, the rear end of the motor body 1 is provided with a rear cover 8, the output shaft 9 of the motor ...

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Abstract

The invention discloses an ECM (electrochemical machining) motor and method for constant torque control based on an accurate flux linkage look-up table method, and relates to the field of motors. As busbar current easily fluctuates, control accuracy is reduced. The ECM motor comprises a motor body and a controller for controlling work of the motor body, the motor body is a magnetic steel insertiontype motor with a reluctance torque, a shell of the motor and the controller are integrated or split, the controller is provided with a storage module, the storage module is used for storing a d-axisflux linkage motor parameter list of a relationship among a flux linkage lambda d, Id and Iq and a q-axis flux linkage motor parameter list of a relationship among a flux linkage lambda q, Id and Iq,the controller can conveniently and accurately control a constant torque through motor parameter list data in the storage module and the look-up table method, busbar current sampling is omitted, control is more accurate, and cost is reduced.

Description

technical field [0001] The invention relates to the field of motors, in particular to an ECM motor and a method for performing constant torque control based on an accurate flux linkage look-up table method. Background technique [0002] With the continuous improvement of people's living standards, the technical requirements for products in the HVAC field such as air conditioners, such as energy saving, environmental protection, intelligence, and low noise, are becoming increasingly strict. The industry is highly competitive, and the traditional motor control system is inefficient and consumes a lot of energy. Therefore, to solve the above problems will undoubtedly become the key to technology. [0003] In the HVAC industry, the system that realizes the control of brushless DC motor BLDC or permanent magnet synchronous motor PMSM through electronic commutation is generally called ECM motor control system. ECM motor control systems are widely used in ventilation systems. Acco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/33H02K5/18H02P6/08
CPCH02K5/18H02K11/33H02P6/08H02P2205/05
Inventor 姜泽魏君燕
Owner WOLONG ELECTRIC GRP CO LTD
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