An integrated frequency conversion fan cooling control device and its control method

A variable frequency fan and control device technology, applied in the direction of temperature control, non-electric variable control, control/regulation system, etc., can solve the problems of heat loss, large structure volume, etc., to improve reliability, low noise efficiency, avoid temperature rise overly effective

Active Publication Date: 2018-07-31
WOLONG ELECTRIC GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the motor and variable frequency drive are both power devices, their own heat loss, large structural volume, cooling and heat dissipation have become technical difficulties in the integrated design of the motor and variable frequency drive

Method used

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  • An integrated frequency conversion fan cooling control device and its control method
  • An integrated frequency conversion fan cooling control device and its control method

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Embodiment Construction

[0030] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] The technical solution is applicable to a variable frequency motor in which the motor and the frequency converter are integrated. The inverter fan is equipped with a frequency converter and a motor, wherein the frequency converter is equipped with a DSP module 3 and an inverter module 4, the output of the DSP module 3 is connected to the IGBT of the inverter module 4, the inverter module 4 is connected to the motor 6, and the motor 6 is a system actuator, which is used to drive the fan 7 to rotate; to realize the control of the motor 6 by the frequency converter.

[0032] Such as figure 1 As shown, the present invention includes a host computer instruction input module 1 for inputting instructions, a power supply module 2 for supplying power, a DSP module 3 for controlling the operation of an inverter module 4, and a DSP modu...

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PUM

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Abstract

The invention relates to a variable-frequency fan temperature control system, in particular to a temperature reduction control device and a control method thereof for an integrated variable-frequency fan. Since a motor and a variable-frequency driver are power type devices, the loss heating, large structural sizes and cooling and radiating problems thereof become difficulties of the integrated design of the motor and the variable-frequency driver. The temperature reduction control device comprises an upper machine command input module, a power supply module, a DSP module, a temperature sampling module, a current sampling module and a three-dimensional meter storage module, wherein the upper machine command input module, the power supply module, the temperature sampling module, the current sampling module and the three-dimensional meter storage module are each connected with the DSP module; and the DSP module determines a scheme for reducing internal temperature of the system and a PWM frequency target value or a motor rotation speed target value on the basis of corresponding comparison between data of the three-dimensional meter storage module and the actual temperature obtained through sampling and a mode selected by a user, and performs regulation based on the scheme and the target values. The temperature reduction control device and the control method thereof reduce the system temperature rise under the condition of ensuring that the system operates safely and normally without halt.

Description

technical field [0001] The invention relates to a temperature control system for a frequency conversion fan, in particular to an integrated cooling control device for a frequency conversion fan and a control method thereof. Background technique [0002] The traditional frequency conversion system uses a fan to dissipate heat for the frequency conversion part, which cannot effectively achieve the goal of reducing the system temperature rise and ensuring system safety in a sealed environment that requires a high degree of protection. [0003] With the development of motor drive technology, users have more and more strong demands on the integrated design of motor and drive. Since the motor and variable frequency drive are both power devices, their own heat loss, large structural volume, cooling and heat dissipation have become technical difficulties in the integrated design of the motor and variable frequency drive. How to effectively reduce the temperature rise of the integra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D23/20
CPCG05D23/20
Inventor 姜泽廉晨龙严伟灿魏君燕汪春兵
Owner WOLONG ELECTRIC GRP CO LTD
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