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Temperature processing system and method of frequency converter

A frequency converter and processing circuit technology, applied in temperature control using multiple sensors, temperature control using electric methods, electrical components, etc., can solve the problems of occupying a large number of sampling ports of DSP chips and increasing costs, and achieve the reduction of sampling ports quantity, improved reliability, and reduced system cost

Inactive Publication Date: 2021-05-14
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a frequency converter temperature processing system and method, to at least solve the problem that in the related art, one channel of temperature sampling of the frequency converter corresponds to one sampling point, occupies a large number of sampling ports of DSP chips, and requires the use of multiple DSP chips, resulting in increased costs technical issues

Method used

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  • Temperature processing system and method of frequency converter
  • Temperature processing system and method of frequency converter
  • Temperature processing system and method of frequency converter

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Embodiment 1

[0032] According to an embodiment of the present invention, a frequency converter temperature processing system is provided. It should be noted that the steps shown in the flow charts of the drawings can be executed in a computer system such as a set of computer-executable instructions, and, although A logical order is shown in the flowcharts, but in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0033] According to an embodiment of the present invention, a frequency converter temperature processing system is provided, figure 1 is a schematic diagram of a frequency converter temperature processing system according to an embodiment of the present invention, such as figure 1 As shown, the temperature processing system of the frequency converter includes: a plurality of sampling circuits 12 and processing circuits 14 .

[0034] Among them, multiple sampling circuits are used to collect multiple temperatures o...

Embodiment 2

[0088] According to an embodiment of the present invention, there is also provided a temperature processing method for a frequency converter. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0089] The methods provided by the above embodiments of the present invention can be executed by the temperature processing system of the frequency converter in the above embodiments, and the specific implementation scheme and preferred application scenarios are the same as those in the above embodiments, and will not be repeated here.

[0090] Figure 5 It is a flow chart of a temperature processing method for a frequency converter according to an embodiment of the present invention, such ...

Embodiment 3

[0100] According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium, the computer-readable storage medium includes a stored program, wherein, when the program is running, the device where the computer-readable storage medium is located is controlled to execute the above-mentioned frequency converter temperature treatment method.

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PUM

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Abstract

The invention discloses a temperature processing system and method of a frequency converter. The system comprises a plurality of sampling circuits which are used for collecting a plurality of temperatures of different parts in the frequency converter; and a processing circuit, wherein a plurality of input ends of the processing circuit are connected with output ends of the plurality of sampling circuits in a one-to-one correspondence manner, a first output end of the processing circuit is connected with a first end of a controller of the frequency converter, the processing circuit is used for determining a target temperature meeting a screening condition in the plurality of temperatures and outputting the target temperature to the controller, and the number of target temperatures is less than the number of the plurality of temperatures. According to the invention, the technical problem that the cost is increased due to the fact that one channel of temperature sampling of the frequency converter corresponds to one sampling point, a large number of sampling ports of DSP chips are occupied and a plurality of DSP chips need to be used in the prior art is solved.

Description

technical field [0001] The invention relates to the field of frequency converter control, in particular to a temperature processing system and method for a frequency converter. Background technique [0002] During the operation of the magnetic levitation centrifuge unit, the shaft is in a suspended state. Compared with the ordinary centrifuge, the motor shaft of the magnetic levitation unit rotates faster, so the frequency converter is required to provide a higher operating frequency and a more stable working state. The frequency converter is the controller system of the entire magnetic levitation motor, and temperature sampling is an important parameter. The frequency converter fails to work. There is a big reason why the strong electric device generates serious heat under the condition of high power and high current. At this time, the system does not monitor and alarm the temperature. burn. The inverter needs multiple channels of sampling to meet the stable operation of ...

Claims

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Application Information

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IPC IPC(8): G05D23/19H02H7/10
CPCG05D23/1927H02H7/10
Inventor 张良浩花峰海于安波刘玲张旗旗谢汉融
Owner GREE ELECTRIC APPLIANCES INC