Normalized decoupling control for high-dimensional MIMO processes for application in room temperature control HVAC systems

作者：Shen, Yuling; Cai, Wen-Jian^*; Li, Shaoyuan

来源：Control Engineering Practice, 2010, 18(6): 652-664.

DOI：10.1016/j.conengprac.2010.03.006

• High-dimensional MIMO processes
• Relative normalized gain array
• Equivalent transfer function matrix
• Normalized decoupling
• PI/PID tuning
• HVAC process

A novel decoupling control system design for high-dimensional multi-input, multi-output (MIMO) processes is presented. Based on the Relative Normalized Gain Array (RNGA), an Equivalent Transfer ETF) for each element in the transfer function matrix was derived for the closed-loop control system and was used to approximate the inverse of the process transfer function matrix. The decoupler could be easily determined with each element in the First-Order-plus-Time-Delay (FOPTD) form and resulted in a stable, proper and causal decoupled matrix. A PI/PID controller could then be designed to meet the performance objectives. The main advantage of this method was its simplicity; it did not require extensive calculation effort. To demonstrate its effectiveness, the decoupling control strategy was applied to control the temperatures of four neighboring rooms in an HVAC process.

• 出版日期2010-6
• 单位上海交通大学; 南阳理工学院