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Permanent magnet motor temperature control method

A technology of permanent magnet motor and preset temperature, which is applied in the direction of non-electric variable control, temperature control, control/regulation system, etc. It can solve the problems of no control method, inability to achieve temperature control effect, unsatisfactory water cooling effect, etc., to achieve good The effect of temperature control effect

Inactive Publication Date: 2016-10-26
WUXI NEW GREAT POWER ELECTRICAL MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current water-cooling method has no reasonable control method, so the water-cooling effect is not ideal. At the same time, the use of water as a heat carrier cannot achieve the predetermined temperature control effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Specific embodiments of the present invention will be described in detail below.

[0020] A temperature control method for a permanent magnet motor, comprising the steps of:

[0021] Step 1: Monitor the temperature of the permanent magnet motor, and transmit the temperature signal to the control unit through the sensor;

[0022] Step 2: When the temperature of the permanent magnet motor exceeds the preset temperature, start the cooling device;

[0023] Step 3: The cooling device absorbs the heat of the permanent magnet motor, and transmits the heat to the outside through the cooling medium;

[0024] Step 4: The heat dissipation medium exchanges heat through the heat exchanger.

[0025] Further, the heat dissipation medium has the following composition: potassium chloride: 0.20-0.50 wt%, sodium nitrate: 0.5-1.25 wt%, potassium hydroxide: 0.2-0.6 wt%, potassium borate: 0.8-3.25 wt%, three Ethanolamine: 0.3-1.5wt%, benzotriazole: 0.1-0.5wt%, glycerin: 0.3-0.9wt% and dis...

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PUM

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Abstract

The invention discloses a permanent magnet motor temperature control method. The method includes that the temperature of a permanent magnet motor is monitored and the temperature signal is transmitted to a control unit via a sensor; a cooling device is started when the temperature of the permanent magnet motor exceeds the preset temperature; the cooling device absorbs the heat of the permanent magnet motor and the heat is transmitted to the outside via a cooling medium; and the cooling medium exchanges heat via a heat exchanger. According to the permanent magnet motor temperature control method, the permanent magnet motor temperature can be monitored in real time, the temperature control device can be turned on or off based on different temperature to effectively control the temperature of the permanent magnet motor; and meanwhile, the cooling medium component of the temperature control device can be improved to achieve better temperature control effect.

Description

technical field [0001] The invention relates to the technical field of permanent magnet motors, in particular to a temperature control method for permanent magnet motors. Background technique [0002] As we all know, the problem of high temperature demagnetization of permanent magnet motors is a major problem hindering the development and application of permanent magnet motors. The cooling methods of super high-power permanent magnet motors are water cooling and natural air cooling. The air cooling method is to rely on the fan blades installed on the motor to blow the heat away from the motor. Although the air-cooling method can play a role in cooling at low temperature, when the temperature rise of the motor is too high in a short time, the air-cooling cannot achieve the effect of rapid cooling. Hazards such as magnetism. [0003] At present, the permanent magnet motor basically adopts the water-cooling method, that is, the water-cooled water jacket is used to transfer th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20
CPCG05D23/20
Inventor 徐明
Owner WUXI NEW GREAT POWER ELECTRICAL MACHINE