The invention discloses a genetic-algorithm-based variable-air-volume air conditioning system and a design method The genetic-algorithm-based variable-air-volume air conditioning system comprises a region module, a mixing cabinet, a fan, a heating coil, a first pipeline, a humidifier, a second pipeline, a temperature sensor, a humidity sensor and a genetic algorithm control module The genetic-algorithm-based variable-air-volume air conditioning system and the design method have the advantages that a mechanism analysis method is adopted, a system model is created through setting of a mass-energy conservation relational expression, and accuracy and integrity are achieved; PID (proportion integration differentiation) control parameters are optimized according to heat and humidity indexes by a genetic algorithm method, the control process is improved, and accordingly, stability and rapidness of the control process are improved

Genetic-algorithm-based variable-air-volume air conditioning system and design method

Disclosed is a real-time humidity calculation method for an air-conditioned room, wherein the method comprises: during a working process of an air-conditioner, invoking a compressor operating frequency which is fed back, and according to the compressor operating frequency, a compressor displacement and a refrigerant density, calculating the amount of coolant flowing in a sampling period (S1); collecting a compressor exhaust gas temperature and an outdoor defrosting sensor detection temperature to calculate a first temperature difference (S2); invoking the specific heat of a refrigerant, and calculating the quantity of heat released outdoors by a coolant within a unit of time (S3); invoking an indoor fan wind speed which is fed back, and according to the indoor fan wind speed, calculating an indoor fan blast volume in the sampling period, and calculating an air enthalpy value change in the sampling period (S4); collecting an indoor temperature and an indoor coil pipe temperature to calculate a second temperature difference (S5); and searching an enthalpy-humidity curve graph, and determining a real-time humidity of a current air-conditioned room (S6). By means of the solution, the humidity of an air-conditioned room can be obtained under the condition of no hardware device being added, and the temperature and the humidity are further cooperatively controlled using inferred values, thus having the advantages of being practical and highly precise.

Real-time humidity calculation method for air-conditioned room, and air-conditioner

Disclosed is a method for controlling the temperature and humidity of an air-conditioner, wherein the method comprises: invoking any target humidity value in a target humidity interval (S101); calculating a humidity deviation (S102); according to the previous real-time humidity of a previous sampling period and the target humidity value, calculating the previous humidity deviation (S103); according to the humidity deviation and the previous humidity deviation Rh_z, calculating a temperature correction value (S104); and generating a corrected set temperature according to the temperature correction value, and controlling a compressor so that same operates by taking a target compressor operating frequency corresponding to the corrected set temperature as an actual target operating frequency (S105). Also disclosed is an air-conditioner (100). According to the solution, a set temperature or a target compressor operating frequency is corrected in a timely manner by means of the humidity of an air-conditioned room, a relationship between the humidity and the temperature of the room is comprehensively considered, and under the premise of not increasing hardware costs, the control accuracy is improved, thus having the advantage of providing good actual user experience.

Method for controlling temperature and humidity of air-conditioner, and air-conditioner

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.

Temperature/humidity universal logic intelligent control method for variable frequency air conditioner

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Temperature/humidity universal logic intelligent control method for variable frequency air conditioner