A temperature and humidity pan-logic intelligent control method for frequency conversion air conditioner

Abstract

The invention relates to a temperature / humidity universal logic intelligent control method for a variable frequency air conditioner. In each control period of the variable frequency air conditioner: firstly, a temperature error E1, a temperature error change rate EC1, a humidity error E2 and a humidity error change rate EC2 in an air conditioner control system are generalized to obtain generalized E1', EC1', E2' and EC2'; then, a four-dimensional universal logic controller is adopted to obtain a compressor frequency adjusting value delta f' of the variable frequency air conditioner; the compressor frequency adjusting value delta f' of the variable frequency air conditioner is generalized to convert as an effective value delta f in an actual variable frequency air conditioner compressor working section; and finally, the delta f is superposed on the basis of a compressor starting frequency for actual control of the variable frequency air conditioner. The temperature / humidity universal logic intelligent control method for the variable frequency air conditioner has the following beneficial effects: the coupling relation between the input quantities, actual measuring errors of temperature / humidity sensors and person comfortable temperature / humidity feeling in the system are comprehensively considered, so that the control change of the variable frequency air conditioner is more gentle, and the comfort of the air conditioner is improved.

Description

technical field The invention relates to a method for controlling temperature and humidity of an air conditioner, in particular to an intelligent control method for temperature and humidity of an inverter air conditioner. Background technique The air conditioner is an indoor air conditioner, which can adjust the temperature, relative humidity, airflow speed and cleanliness of the room to a certain extent. Its most important and basic function is to adjust the temperature. Air conditioners are divided into fixed frequency air conditioners and variable frequency air conditioners. The compressor speed of fixed frequency air conditioners is basically constant. This control method is likely to cause problems such as hot and cold room temperature, poor temperature comfort, and high power consumption. The variable frequency air conditioner continuously adjusts the load of the compressor by changing the speed of the compressor to adapt to the dynamically changing load requirements...

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Problems solved by technology

When the existing frequency conversion air conditioner adopts fuzzy control of temperature and humidity, the controller obtains the output of the controller through fuzzy reasoning only based on the temperature (humidity) error and the rate of change of the temperature (humidity) error, without considering the natural relationship between the corresponding state and the state change. Due to the coupling relationship, the control effect cannot well simulate the flexible characteristics of human control. When the ambient temperature (humidity) changes suddenly, the compressor speed of the inverter air conditioner also changes accordingly. There is no transition zone in the middle, which makes people feel uncomfortable. , the humanoid characteristics of the control effect are not obvious

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