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Motor control device and motor control method

A control device and motor technology, applied in motor control, non-electric variable control, program control manipulator, etc., can solve problems such as complicated motor control, and achieve stable control effects

Active Publication Date: 2015-12-30
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, motor control becomes complicated, so it is not preferable

Method used

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  • Motor control device and motor control method
  • Motor control device and motor control method
  • Motor control device and motor control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0023] figure 1 It is a block diagram showing an example of a system configuration including the motor control device 1 according to Embodiment 1 of the present invention. The motor control device 1 controls the operation of the motor 2 . For example, the motor 2 is a servo motor, and the motor control device 1 is a servo amplifier.

[0024] exist figure 1 In the shown example, a motor control device 1 is connected between a motor 2 and an AC power supply 3 . In addition, the motor control device 1 is connected to a host controller 100 . The host controller 100 has a command calculation unit 110 that calculates commands such as a position command and a speed command. The motor control device 1 receives instructions from the host controller 100, and controls the operation of the motor 2 according to the instructions. Typically, position information detected by a position detector 4 such as an encoder attached to the motor 2 is fed back to the motor control device 1 , and f...

Embodiment approach 2

[0049] Figure 4 It is a block diagram showing a system configuration example including the motor control device 1 according to Embodiment 2 of the present invention. Explanations that overlap with those of Embodiment 1 described above are appropriately omitted.

[0050] In the present embodiment, the reference voltage acquisition unit 70 receives the input voltage VI detected by the voltage detector 40 when the motor control device 1 is powered on. Then, the reference voltage acquisition unit 70 automatically determines (calculates) one reference voltage VRs corresponding to the input voltage VI at power-on. In the manner described above, the reference voltage acquisition section 70 can automatically acquire appropriate reference voltage information SEL.

Embodiment approach 3

[0052] Figure 5 It is a block diagram showing a system configuration example including the motor control device 1 according to Embodiment 3 of the present invention. Explanations that overlap with those of Embodiment 1 described above are appropriately omitted.

[0053] In the present embodiment, the reference voltage determining unit 120 of the host controller 100 determines one reference voltage VRs. Then, the reference voltage determination unit 120 outputs (notifies) the reference voltage information SEL specifying the reference voltage VRs to the motor control device 1 . The reference voltage acquisition unit 70 of the motor control device 1 receives reference voltage information SEL from the host controller 100 . As the transmission timing of the reference voltage information SEL from the host controller 100 to the reference voltage acquisition unit 70 , the timing when the motor control device 1 and the host controller 100 are first connected is conceivable.

[0054...

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Abstract

A motor control circuit controls motor operation according to an input voltage and a control parameter. A voltage abnormality detection unit detects an abnormality of the input voltage by comparing the input voltage with an allowable voltage range. A memory stores a plurality of allowable voltage range candidates corresponding to a plurality of reference voltages and a plurality of control parameter candidates corresponding to the reference voltages. A reference voltage acquiring unit acquires reference voltage information for specifying one reference voltage from among the plurality of reference voltages. Based on the reference voltage information, a selector selects, as an allowable voltage range, the allowable voltage range corresponding to the one reference voltage from among the plurality of allowable voltage range candidates and selects, as a control parameter, the control parameter corresponding to the one reference voltage from among the plurality of control parameter candidates.

Description

technical field [0001] The invention relates to a motor control device and a motor control method. Background technique [0002] Motor control devices such as servo amplifiers that control the operation of servo motors are known. In the motor control device described above, the following method is known as a method of setting a gain of a current loop or the like required for control. [0003] Patent Document 1 discloses a servo motor control device that controls a servo gain by comparing a command signal to a drive circuit of the servo motor with a feedback signal. The servo motor control device has a calculation unit, a detection unit, and a parameter setting unit. The calculation unit calculates the servo gain successively to determine the operation command for the drive circuit. The detection unit detects the power supply voltage of the servo motor. The parameter setting unit determines the weight of the control parameter of the operation command according to the dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P29/00H02P29/02
CPCH02P29/0241H02P29/026H02M1/10H02M1/32H02P6/34G05B9/02G05B19/4062B25J9/1674G05D1/0077H02P6/14H02P29/024
Inventor 小川健二
Owner MITSUBISHI ELECTRIC CORP