文献类型：会议论文

英文题名：Application of Two-stage Fuzzy PID Control in Variable Refrigerant Volume Air Conditioning Systems

作者：Xu Jinqiang[1,2];Feng Zi-ping[2]

机构：[1]Guangdong Ocean Univ, Coll Informat, Zhanjiang 524088, Peoples R China;[2]Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China

会议论文集：21st Chinese Control and Decision Conference

会议日期：JUN 17-19, 2009

会议地点：Guilin, PEOPLES R CHINA

语种：英文

外文关键词：VRV system; Couplings; Temperature control; Two-stage fuzzy PID; Robustness

外文摘要：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.