Air Conditioning Control System and Method Based on Variable Speed ​​Integral PID Iterative Learning Algorithm

Abstract

The invention discloses an air conditioner control system and method based on the variable speed integral PID type iterative learning algorithm. The control system comprises a subtractor, a differentiator, an integrator, a variable speed integral controller, an iterative learning controller, a storage memorizer and a pressure sensor used for detecting the value of static pressure in an air supply pipeline in an air conditioner; the output end of the pressure sensor is connected to the input end of the subtractor, the output end of the subtractor is connected to the input end of the iterative learning controller, the input end of the variable speed integral controller, the input end of the integrator and the input end of the differentiator, the output end of the integrator, the output end of the differentiator, the output end of the variable speed integral controller and the output end of the storage memorizer are connected to the input end of the iterative learning controller, and the output end of the iterative learning controller is connected to the input end of the storage memorizer and the control end of a frequency conversion can in the air conditioner. According to the air conditioner control system and method, the variable static pressure value of the air conditioner can be adjusted dynamically, and the energy saving performance of the air conditioner is good.

Description

technical field [0001] The invention belongs to the technical field of variable static pressure control of a variable air volume air-conditioning system, and relates to an air-conditioning control system and method based on a variable-speed integral PID iterative learning algorithm. Background technique [0002] The energy consumption of the fan in the variable air volume air conditioning system accounts for a large proportion of the energy consumption of the whole system, and the optimal control of the fan can effectively reduce the energy consumption of the system in theory. There are many adjustment and control methods for the air supply volume of the variable air volume air conditioning system, mainly including: constant static pressure control mode, variable static pressure control mode, and total air volume control mode. The existing research shows that the system has better control and energy-saving effects under the control of variable static pressure. The variable ...

AI Technical Summary

Problems solved by technology

In the study of variable static pressure control of variable air volume air conditioning system, many scholars have used relevant intelligent control algorithms for research, but the research results show that under the traditional intelligent control algorithm, the system is difficult to track the expected value trajectory well, and there are large overshoots, The adjustment time is long, the control effect is not good, etc., that is, the dynamic performance of the system response is not ideal, and the energy-saving control of the system is not ideal

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