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Method for actuating an electric motor

A technology of electric motor and drive shaft, applied in the estimation/correction of motor parameters, motor control, AC motor control and other directions

Active Publication Date: 2020-11-10
安东帕有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, a considerable problem in this case is that the corresponding excitation is also modified by the nonlinear behavior of the medium or sample

Method used

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  • Method for actuating an electric motor
  • Method for actuating an electric motor
  • Method for actuating an electric motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] figure 1 Shows the motor 1, through the voltage source, the predetermined voltage curve U M Or current curve I M It is applied to the motor by the regulator 3. The regulator 3 accordingly sets the current-time curve or the voltage-time curve as the operating variable u(t) in a manner that depends on the deflection w for the motor or the predetermined expected time curve for the sample torque M. The electric motor 1 is actuated for oscillating rotation of its drive shaft. The electric motor 1 transmits its driving energy to the sample 2 via the motor shaft, and the sample is located between two plates. At least one of the two plates rotates relative to the sample 2, so that, as a whole, the sample 2 is sheared or Rotational movement. Due to the specific viscosity of the sample 2, different torques are generated on the motor shaft according to the deflection of the drive shaft of the electric motor 1. These established or set deflection w and torque M can be related to e...

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PUM

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Abstract

The invention relates to a method for actuating an electric motor. In particular, the invention relates to a method for actuating an electric motor (1) for a rheometer, wherein a) the electric motor (1) transmits its drive energy to the sample (2), b) for deflection The expected time profile (e(t)) of (w) is predetermined and has a periodic predetermined form, c) for the deflection (w) the value (y) is established as the measured variable (y(t)), d) by The manipulated variable (u(t)) is predetermined to actuate the electric motor (1), e) the measured variable (y(t)) and the manipulated variable (u(t)) behave nonlinearly with respect to each other, f) for the expected The time curve (e(t)) establishes the approximation function (e′(t)) as a number of predetermined basis functions (f 1 (t), f 2 (t), ...) weighted sum.

Description

Technical field [0001] The invention relates to a method for actuating an electric motor for oscillatory rotation of a drive shaft, especially for rheometers. [0002] Furthermore, the invention relates to an arrangement for applying oscillating rotation of a drive shaft, in particular a rheometer for measuring the viscosity of a sample. Background technique [0003] The prior art has disclosed various closed-loop actuation controls for electric motors, which excite the electric motors to perform oscillating rotation of the drive shaft. Specifically, these methods are used to measure the non-linear and rheological properties of the medium. The drive shaft of the motor is inserted into the area of ​​the medium to be detected, and the non-linear and flow properties of the medium are established by moving the drive shaft in the relevant medium. Change nature. Here, a rotational oscillation with a large deflection amplitude is particularly preferred, because when the adopted deflecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N11/14
CPCH02P25/032G01N11/142H02P2209/11H02K33/04G01N11/14G01N11/165H02P23/14G05B19/0426G01L3/22G01N11/162H02P21/14
Inventor S·胡克J·勒格H·斯特廷
Owner 安东帕有限责任公司