Fault diagnosis control system for variable-frequency air conditioner and control method of fault diagnosis control system

Abstract

The invention relates to the fault diagnosis technology of a variable-frequency air conditioner and discloses a fault diagnosis control method for the variable-frequency air conditioner. The fast diagnosis and the precise positioning on the fault of the variable-frequency air conditioner are realized. The method comprises the following steps that a, corresponding control instructions are sent to the variable-frequency air conditioner through an intelligent control module for controlling the operation state of the variable-frequency air conditioner; b, a data collection module carries out real-time monitoring on the operation state of the variable-frequency air conditioner and collects environment parameters and operation parameters of the variable-frequency air conditioner; c, a fault diagnosis module calculates the environment parameters and the operation parameters of the variable-frequency air conditioner collected by the data collection module to obtain operation state curves of each part and the integral operation state curve of the variable-frequency air conditioner, then, whether the variable-frequency air conditioner has faults or not is judged according to the change trend of each curve, and the fault reason and the fault device are judged when the fault exists; and d, fault diagnosis results are displayed through a display module. In addition, the invention also discloses a fault diagnosis control system of the variable-frequency air conditioner, and the fault diagnosis control system is applicable to the fault diagnosis and the maintenance on the variable-frequency air conditioner.

Description

technical field [0001] The invention relates to a frequency conversion air conditioner fault diagnosis technology, in particular to a frequency conversion air conditioner fault diagnosis control system and a fault diagnosis control method. Background technique [0002] With the rapid development of science and technology, the frequency conversion technology of air conditioners is developing faster and faster, and there are more and more control parameters, and the causes and phenomena of the faults are also becoming more and more complicated; the fault manifestations of the frequency conversion air conditioners in the traditional technology are only The fault code is displayed through LED lights or the digital tube that comes with the inverter air conditioner, and the code is not standardized, which has caused huge troubles for customers to use and maintain. At the same time, the current inverter air conditioners basically do not have fault intelligent diagnosis, detection, ...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of science and technology, the frequency conversion technology of air conditioners is developing faster and faster, and there are more and more control parameters, and the causes and phenomena of the faults are also becoming more and more complicated; the fault manifestations of the frequency conversion air conditioners in the traditional technology are only The fault code is displayed through the LED light or the digital tube that comes with the inverter air conditioner, and the code is not standardized, which has caused huge troubles for customers to use and maintain.

At the same time, the current inverter air conditioners basically do not have fault intelligent diagnosis, detection, and control functions, and very few air conditioners are only judged for functionality, or there is no implementation method, or only through environmental parameters (such as: temperature), etc. Therefore, it is necessary to invent a control system integrating control, detection and fault diagnosis, and propose a corresponding control method to realize rapid diagnosis and precise positioning of inverter air conditioner faults

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