Energy-saving automatic control method of textile air conditioner based on expert pid

Abstract

The invention discloses an energy-saving self-control method for textile air conditioners based on expert PID. The indoor temperature and humidity information of the textile workshop is collected through a temperature and humidity sensor, and the corresponding indoor enthalpy value is calculated; the temperature and humidity enthalpy value is calculated under theoretical environmental conditions, and collected through the temperature and humidity sensor. Outdoor temperature and humidity information, calculate the outdoor enthalpy value, compare it with the temperature and humidity enthalpy value under the theoretical environmental working conditions, and determine the actual environmental working conditions; under different actual environmental working conditions, control the windshield by comparing the indoor enthalpy value and outdoor enthalpy value Opening; set the indoor temperature and humidity threshold, feedback and compare the collected indoor temperature and humidity information with the indoor temperature and humidity threshold, input the result to the PLC controller, call the expert PID algorithm to control the output frequency of the fan and water pump; the self-control method of the present invention is based on "increasing The principle of "small minus big" gives priority to controlling the opening of the windshield; through the expert PID algorithm, the output frequency of the blower and circulating water pump is adaptively adjusted, and the temperature and humidity of the textile factory workshop are independently controlled.

Description

technical field [0001] The invention belongs to the technical field of temperature and humidity control of air conditioners in textile workshops, and relates to an energy-saving automatic control method for textile air conditioners based on expert PID. Background technique [0002] The textile air-conditioning automatic control system can not only ensure that the temperature and humidity in the workshop meet the process requirements, but also have a significant effect on improving production quality and reducing costs. However, the textile air-conditioning automatic control system has the following characteristics: First, the air-conditioning system has multiple working conditions, and unreasonable partitions cause the system to have cold and heat offset phenomena; second, the introduction of outdoor fresh air has a greater impact on the energy consumption of the air-conditioning system; third, the textile The air conditioning system has the characteristics of nonlinearity a...

AI Technical Summary

Problems solved by technology

However, the textile air-conditioning automatic control system has the following characteristics: First, the air-conditioning system has multiple working conditions, and unreasonable partitions cause the system to have cold and heat offset phenomena; second, the introduction of outdoor fresh air has a greater impact on the energy consumption of the air-conditioning system; third, the textile The air conditioning system has the characteristics of nonlinearity and hysteresis, and it is difficult to meet various control requirements with traditional PID adjustment

Therefore, the current textile air-conditioning automatic control system is difficult to achieve the purpose of good control and high efficiency and energy saving

Images