Ultra-low voltage three phase AC induction machine test method and device

A technology of three-phase AC and induction motors, which is applied in the direction of motor generator testing, etc., can solve the problems of no parameter and performance testing equipment, etc., and achieve the effect of simple testing method and reliable performance

Inactive Publication Date: 2009-06-10
重庆三祥汽车电控系统有限公司
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Problems solved by technology

The main ones that should be used on vehicles are high-current ultra-low voltage three-phase AC induction motors (voltage lower than 8V, current up to about 150A). However, the application of automotive grade puts forward higher requirements for the in

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  • Ultra-low voltage three phase AC induction machine test method and device
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  • Ultra-low voltage three phase AC induction machine test method and device

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Embodiment Construction

[0018] A method for testing the parameters of an ultra-low voltage three-phase AC induction motor. The DC-AC inverter system is used to drive the ultra-low voltage three-phase AC induction motor. The ECU controller adopts the VVVF control algorithm to realize the ultra-low Speed ​​regulation of low-voltage three-phase AC induction motor; the data processing module stores and displays the motor terminal voltage and phase current obtained by real-time sampling, and calculates the input power of the motor through FFT; and the battery provides power;

[0019] The terminal voltage and phase current of the ultra-low voltage three-phase AC induction motor are measured by the no-load experiment, and the input power is calculated, which is the no-load loss P of the ultra-low voltage three-phase AC induction motor 10 ;

[0020] The terminal voltage and phase current of the ultra-low voltage three-phase AC induction motor are measured by the locked-rotor experiment, and the input power i...

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Abstract

The present invention provides a method for testing parameter of super-low voltage three-phase alternating-current induction motor and a device thereof. A DC-AC inversing system is adopted for driving the electric motor. An ECU controller adopts a VVVF control algorithm and realizes the speed modulation to the motor with a mode of constant pressure-frequency ratio. A data processing module executes storing and display procession to the motor-end voltage and phase current obtained through real-time sampling. The input power of motor is calculated through FFT. An accumulator provides a power source. The parameter measuring is executed through executing experiments of empty loading, rotation-clogging, voltage-frequency characteristic, etc. to the three-phase alternating-current induction motor. The invention also provides a method for measuring the motor parameter, testing the electric property and identifying the quality of magnetic material. The device according to the invention comprises a hardware platform which is composed of a DC-AC inverter, an inversion driver, an ECU controller, a measuring module, a data processing module and a touch screen. The device according to the invention has the advantages of simple structure and reliable performance.

Description

technical field [0001] The invention relates to a testing method and device for motor parameters, in particular to a digital ultra-low voltage three-phase AC induction motor parameter testing method and device. Background technique [0002] Due to the simple structure, no winding on the rotor, the induction motor has low maintenance cost and long service life; therefore, it is used in many occasions, almost used in daily life, factory equipment, ports, oilfields, coal mines and other fields. With the continuous development of hybrid electric vehicles, the application of induction motors in automobiles has become a trend and has been gradually promoted. The main ones that should be used on vehicles are high-current ultra-low voltage three-phase AC induction motors (voltage lower than 8V, current up to about 150A). However, the application of automotive grade puts forward higher requirements for the induction motor itself and its drive. , There is a huge gap in the design, ma...

Claims

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Application Information

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IPC IPC(8): G01R31/34
Inventor 刘和平田刚唐进蔡远
Owner 重庆三祥汽车电控系统有限公司
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