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Motor control system

一种控制系统、电动机的技术，应用在控制系统、交流电动机控制、电气元件等方向，能够解决失真、波形失真、不同时开启等问题

Active Publication Date: 2019-03-05
ANPEC ELECTRONICS CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The control signal of the motor control system is controlled by a six-step square wave or a sine wave. However, no matter which signal waveform is used, due to the complementary switch control circuit, the upper bridge switch and the lower bridge switch will not be turned on at the same time. , that is, there will be a dead time. Because the six-step square wave or sine wave control is to subtract two control signals to generate another control signal, however, because there is a gap between the two control signals A phase difference, so one of the control signals will have waveform distortion with dead time, while the other control signal will not have waveform distortion with dead time
Therefore, the waveform generated after the subtraction of the two control signals still has dead time waveform distortion

Method used

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Embodiment Construction

[0021] Various exemplary embodiments will be described more fully hereinafter with reference to the accompanying drawings, in which some exemplary embodiments are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the illustrative embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like numbers indicate like components throughout.

[0022] It will be understood that although the terms first, second, third etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one component from another. Thus, a first component discussed below could be termed a second compon...

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Abstract

The invention provides a motor control system which includes a motor, a driving module and a control module. A first coil is electrically connected to a first node where a first control signal is provided, a second coil is electrically connected to a second node where a second control signal is provided, and a third coil is electrically connected to a third node where a third control signal is provided. A constant value of the first control signal is not zero, and a lower signal voltage limit of the first control signal is larger than or equal to zero.

Description

technical field [0001] The invention relates to a motor control system, in particular to a motor control system for reducing control waveform distortion. Background technique [0002] The control signal of the motor control system is controlled by a six-step square wave or a sine wave. However, no matter which signal waveform is used, due to the complementary switch control circuit, the upper bridge switch and the lower bridge switch will not be turned on at the same time. , that is, there will be a dead time. Because the six-step square wave or sine wave control is to subtract two control signals to generate another control signal, however, because there is a gap between the two control signals A phase difference, so one of the control signals has a dead time waveform distortion, while the other control signal does not have a dead time waveform distortion. Therefore, the waveform generated after the subtraction of the two control signals still has dead time waveform distor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P27/06H02P27/08
CPCH02P27/06H02P27/08
Inventor 蔡明融陈立伟
Owner ANPEC ELECTRONICS CORPORATION