AC motor control performance automatic testing system and testing method

A technology of automated testing and AC motors, applied in the field of power electronics and electric drives, can solve problems such as energy waste and unreasonable design, and achieve the effect of saving energy

Inactive Publication Date: 2015-12-30
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type will cause waste of energy and unreasonable design

Method used

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  • AC motor control performance automatic testing system and testing method
  • AC motor control performance automatic testing system and testing method
  • AC motor control performance automatic testing system and testing method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0021] The present invention will be further described below in conjunction with specific examples.

[0022] An automatic test system for AC motor control performance, such as figure 1 As shown, it includes:

[0023] AC and DC motors coupled to each other.

[0024] AC motor control systems such as figure 2 As shown, it is composed of a power circuit, a control circuit, a detection circuit and a drive circuit. The power circuit includes a non-controllable rectification circuit and a controllable rectification circuit selected by a switch (arbitrarily selected according to the test requirements). The circuit is connected with the inverter of the AC motor. The detection circuit detects the current, voltage and speed of the AC motor and transmits it to the control circuit. The control circuit sends control instructions to drive the AC motor through the drive circuit to control the inverter. circuit control. In the power circuit, when DZ2 and KM2 are turned on and KM1 is turne...

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PUM

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Abstract

The invention provides an AC motor control performance automatic testing system which includes an AC motor and a DC motor in shaft connection, wherein an AC motor control system includes a power circuit, a control circuit, a detection circuit and a driving circuit; the power circuit includes an uncontrollable rectifying circuit and a controllable rectifying circuit alternatively selected through a switch; an AC power supply is connected with the inverter of the AC motor through the power circuit; the detection circuit detects and transmits current, voltage and the rotating speed of the AC motor to the control circuit; the control circuit sends a control order, and the driving circuit controls the inverter, so as to drive the AC motor; a DC motor control system adopts a logic circulating-current-free reversible DC speed regulating system; the AC motor control performance automatic testing system further includes an upper computer system and a communication system. When the AC motor is used as the load of the DC motor, electric energy is used as energy to feed back a power grid through the controllable rectifying circuit; when the DC motor is used for loading and unloading of the AC motor, electric energy is fed back to the power grid through a direct current speed controller, so that energy is saved.

Description

technical field [0001] The invention belongs to the technical field of power electronics and electric transmission, and in particular relates to an automatic test system and a test method for the control performance of an AC motor. Background technique [0002] In the past two decades, with the rapid development of my country's industry, the demand for AC motors in metallurgy, energy, chemical industry, manufacturing, transportation and other industries has increased day by day, so higher and higher performance and quality indicators have been put forward for them. It is of great significance to test the relevant performance (including speed, torque, power, efficiency, etc.) of the AC motor and its electric drive control system, and to seek a corresponding test system to complete the test of its mechanical and electrical performance. Therefore, the development An automatic motor test system using advanced industrial control technology and information technology is imperative...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34
CPCY02P20/10
Inventor 赵昊裔
Owner WISDRI ENG & RES INC LTD
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