Application of Two-stage Fuzzy PID Control in Variable Refrigerant Volume Air Conditioning Systems
The variable refrigerant volume (VRV) air conditioning systems have been employed in small and medium sized buildings recently for its advantages of comfort, energy conservation and easy maintenance. However, the optimal control of VRV air conditioning systems is very difficult due to cross-coupling system parameters and time-variant operating conditions. In this paper, the indoor temperatures are taken as the controlled variables to regulate the openings of individual electronic expansion valve (EEV) and the suction pressure is taken to modulate the speed of inverter-driven compressor, a robust and self-adaptive two-stage Fuzzy Proportional Integral Derivative (PID) controller is proposed. The controllability is tested in a triple evaporator VRV air conditioning system, experimental results show that the proposed two-stage fuzzy PID controller could achieve desired control accuracy and guarantee good robustness for room temperature control.
VRV system Couplings Temperature control Two-stage fuzzy PID Robustness
Xu Jinqiang Feng Zi-ping
College of Information, Guangdong Ocean University, Zhanjiang, 524088, China Guangzhou Institute of Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, China
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
5619-5622
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）