Method for measuring motor parameter

A measurement method and motor technology, applied in the direction of motor generator testing, etc., can solve the problems of large volume and weight of induction motors, difficulty in applying on-site measurement, and inability to measure the actual performance of induction motors

CN102636749AInactive Publication Date: 2012-08-15杨哲化
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-08-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for measuring a motor parameter. The method comprises the following steps that: A) a power supply device is provided so as to be electrically connected with an induction motor; B) the power supply device provides a driving electricity so as to be switched-on to the induction motor so that the induction motor is accelerated to a stable rotate speed from the static starting in an unloaded manner, and simultaneously detects and records a start instantaneous current and a start instantaneous voltage when the induction motor is accelerated to the stable rotate speed from the static starting; C) the power supply device stops providing the driving electricity so that the induction motor is decelerated to the static from the stable rotate speed, and simultaneously detects and records a power-off instantaneous current and a power-off instantaneous voltage when the induction motor is decelerated to the static from the stable rotate speed; and D) the start instantaneous current, the start instantaneous voltage, the power-off instantaneous current and the power-off instantaneous voltage are provided to a computation system so as to compute the parameter of the induction motor.
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Description

technical field

[0001] The invention relates to a method for measuring electrical parameters, in particular to a method for measuring parameters of an induction motor. Background technique

[0002] After years of development, the induction motor has developed many variations in order to make the induction motor suitable for various machines. Various types of induction motors have different output characteristics. In order to ensure that the manufactured induction motor has the correct characteristics, it is necessary to understand the equivalent model of the induction motor on the circuit. The data during operation is used to further calculate the equivalent circuit type. After knowing the equivalent circuit type of the induction motor after power-on, you can further understand the characteristics and shortcomings of the motor, and make an induction motor with more accurate and stable output.

[0003] And the known measurement method has the No. 298620 of Chinese Taiwan Pa...

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Embodiment Construction

[0015] The present invention is a method for measuring motor parameters, and the technical content of the present invention will be described below with reference to the accompanying drawings.

[0016] see figure 1 As shown, it is a schematic flow chart of the steps of an embodiment of the present invention, as shown in the figure: the measurement method disclosed by the present invention includes the following steps: A. Provide a power supply device electrically connected to an induction motor. B. The power supply equipment outputs a driving power to the induction motor to accelerate the induction motor from static start to a steady speed without load (such as figure 1 Shown in step block S1), simultaneously detect and record a start-up instantaneous current and a start-up instantaneous voltage (such as figure 1 shown in step block S2). C. The power supply equipment stops outputting the driving power to decelerate the induction motor from the steady-state speed to a standst...