Variable-frequency air conditioner frequency control method and control device and variable-frequency air conditioner

Abstract

The invention discloses a variable-frequency air conditioner frequency control method and control device and a variable-frequency air conditioner. The method comprises the following steps: with the air conditioner being in refrigeration operation, performing an indoor temperature PID calculation to obtain a first frequency; detecting a heat source in a room where the air conditioner is located, determining the real-time distance between the heat source and the air conditioner, and determining a frequency corresponding to the real-time distance as a second frequency; performing a coil temperature PID calculation according to the temperature difference between a real-time coil temperature and a target coil temperature to obtain a third frequency, wherein the target coil temperature is determined according to a target indoor temperature and meets the condition that the target coil temperature is low when the target indoor temperature is low; if a real-time indoor environment temperature is not lower than a set comfortable temperature, selecting the lower frequency of the first frequency and the second frequency as a target frequency; and if the real-time indoor environment temperature is lower than a set comfortable temperature, selecting the lowest frequency of the first frequency, the second frequency and the third frequency as the target frequency. Through application of the method and the device, energy conservation and conform control of the air conditioner can be realized.

Description

Technical field [0001] The present invention belongs to the technical field of air conditioning. Specifically, it relates to an air conditioner that regulates indoor air, and more specifically, it relates to a frequency control method based on an inverter air conditioner, a control device and an inverter air conditioner. Background technique [0002] The air conditioner can be used for cooling in summer and heating in winter, and can adjust the indoor temperature to warm in winter and cool in summer, providing users with a comfortable environment. While air conditioning provides users with comfort, it is accompanied by contradictions with high energy consumption. Energy consumption not only increases the economic burden of users, but also runs counter to the trend of energy conservation and environmental protection. Therefore, how to use air conditioners to provide users with a comfortable environment while reducing the energy consumption of air conditioners is a problem that a...

AI Technical Summary

Problems solved by technology

[0004] Since the coil temperature of the heat exchanger is a key parameter related to the air-conditioning refrigerant system and the overall air conditioning, improper control may lead to poor air conditioning performance and reduced comfort

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