Motor temperature rise measurement method and measurement device
A measurement method and measurement device technology, applied in the direction of motor generator testing, etc., can solve problems such as overheating of components, damage to motors, complicated installation, etc., and achieve the effect of omitting complicated procedures and reducing costs
Active Publication Date: 2016-01-20
BEIJING DAHAO TECH
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Problems solved by technology
In the case of meeting the application requirements, the safe operation of the motor should be guaranteed. When the motor runs for a long time, especially when the motor is overloaded for a long time, it will cause the stator winding, motor shaft or other components of the motor to overheat, such as exceeding the motor The temperature rise limit will burn the motor
[0003] In order to avoid damage to the motor due to excessive temperature rise, a temperature rise detection device can be installed to detect the temperature rise of the key components of the motor, but the temperature rise detection device needs to be installed on the surface of the motor or embedded inside the motor, which is complicated and expensive to install
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[0021] An embodiment of the present invention provides a method for measuring the temperature rise of a motor, which is used to measure the temperature rise during the operation of the motor to provide data for monitoring the operation of the motor.
[0022] figure 1 The flow chart of the motor temperature rise measurement method provided by the embodiment of the present invention, such as figure 1 As shown, the measurement method specifically includes:
[0023] Step 1. Collect the current value and rotational speed value of the motor.
[0024] The collection of the current value can be collected through an additional current sensor or ammeter, or the current value collected by the existing control system of the motor can be used as the current value in this measurement method.
[0025] The rotational speed value can be collected through an additional speed sensor or the rotational speed value already collected by the existing control system of the motor as the rotational sp...
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The invention discloses a motor temperature rise measurement method and a motor temperature rise measurement device. The measurement method comprises the following steps of collecting current values and rotation speed values of a motor; calculating copper loss values of the motor according to the collected current values and calculating iron loss values of the motor according to the collected rotation speed values; calculating loss values of the motor according to the copper loss values and the iron loss values; and looking up temperature rise values of the motor under the corresponding losses in a database according to the loss values. With the adoption of the measurement method, no temperature rise detection device is required to be specially installed for detection on the motor temperature rise, as well as no power detection device is required to be specially installed for the measurement of input powers and output powers for the calculation of motor loss; and therefore, the complicated procedures of installing the temperature rise detection device or the power detection device in the motor are omitted, and moreover, the cost is lowered.
Description
technical field [0001] The invention relates to motor measurement technology, in particular to a motor temperature rise measurement method and a measurement device. Background technique [0002] At present, motors are widely used in various industrial fields, and in order to meet the requirements of different application environments and different driving loads, higher requirements are also put forward for the motors. In the case of meeting the application requirements, the safe operation of the motor should be guaranteed. When the motor runs for a long time, especially when the motor is overloaded for a long time, it will cause the stator winding, motor shaft or other components of the motor to overheat, such as exceeding the motor The limit of temperature rise will burn the motor. [0003] In order to avoid damage to the motor due to excessive temperature rise, a temperature rise detection device can be installed to detect the temperature rise of key components of the mot...
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IPC IPC(8): G01R31/34
Inventor 胡文海王志恒张朕山健
Owner BEIJING DAHAO TECH