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Electric motor control device and method for automatically adjusting same

A control device and automatic adjustment technology, applied in the direction of motor control, AC motor angular single-axis angular velocity control, control system, etc., can solve problems such as operator burden, and achieve the effect of reducing burden

Active Publication Date: 2014-12-17
HITACHI IND EQUIP SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, it is necessary to further adjust the control parameters, and there is a problem of imposing a burden on the operator.

Method used

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  • Electric motor control device and method for automatically adjusting same
  • Electric motor control device and method for automatically adjusting same
  • Electric motor control device and method for automatically adjusting same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] figure 1 It is a control block diagram showing the automatic adjustment method of the motor control device according to the first embodiment of the present invention. The purpose of the first embodiment is to automatically adjust the feedback control parameters.

[0058] exist figure 1 In this example, a motor 1 as a drive source and a load 2 to be driven are connected by a connection shaft 3 . A power conversion device 4 is installed to supply electric power to the electric motor 1 , and the electric motor 1 is driven by the current supplied from the electric power conversion device 4 . Mounted on the motor 1 is the position detection value θ of the output motor 1 M The position detector 5 is provided with a position command value θ from the upper command device described later M * and motor 1 position detection value θ M The positional deviation θ e The subtractor 6. Positional deviation θ from subtractor 7 e Output to the position controller 7, the position c...

Embodiment 2

[0158] In the above-mentioned present embodiment, when the feedforward control parameters are automatically adjusted, the two control parameters, the position feedforward gain and the position feedforward time constant, are adjusted. best control parameters. In the second embodiment, an example of an adjustment method is shown in which the position feedforward time constant is changed after the position feedforward gain is repeatedly adjusted, and the position feedforward gain is adjusted again.

[0159] As a prerequisite system and figure 1 The first embodiment shown is the same, so detailed description is omitted.

[0160] In the second embodiment, in addition to the automatic adjustment of the feedback control parameters in the first embodiment, the automatic adjustment of the position feedforward control parameters is also performed. The input-output relationship to the position feedforward controller can be expressed by Equation (3) using the feedforward gain Kff and the ...

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Abstract

The present invention provides an electric motor control device capable of reducing the burden on the operator and automatically adjusting control parameters to achieve stable operation, and a method for automatically adjusting the device. A control-parameter automatic adjustment device, wherein there are provided an adjustment method and a device for repeating automatic adjustment, within permissible value ranges for vibration amplitude and overshoot set by the user, until appropriate control parameters are obtained, while detecting motor vibration while the motor is stopped and motor vibration while the motor is operating and suppressing motor vibration.

Description

technical field [0001] The invention relates to a motor control device and its automatic adjustment method. Background technique [0002] As the first prior art for automatically tuning feedback control parameters and feedforward control parameters, there is Patent Document 1. This first prior art discloses a motor control device which generates a basic operation pattern and outputs a continuous operation pattern in which the basic pattern is repeated a set number of times when adjusting control parameters without requiring a high-level instruction device. [0003] In addition, Patent Document 2 is known as a second prior art. This second prior art provides an adjustment method and device that does not require an upper-level command device, generates a basic action pattern, and performs automatic adjustments repeatedly until the feedback control parameters and feedforward control parameters are adjusted in the vibration amplitude and overshoot. If it is within the allowabl...

Claims

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Application Information

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IPC IPC(8): H02P29/00G05D3/12
CPCH02P23/18H02P29/50
Inventor 上井雄介高野裕理大桥敬典米本伸治杉浦正树
Owner HITACHI IND EQUIP SYST CO LTD
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