Title :
Design of Performance Testing System for Train Air Conditioning
Author :
Liang, Zhang ; Jianhua, Liu ; Ruofei, Wu ; Gong Xiaobing
Author_Institution :
Coll. of Power Eng., Univ. of Shanghai for Sci. & Technol., Shanghai, China
Abstract :
The design of performance testing system for train air conditioning was done according to the NATIONAL STANDARD TB/T 1804-2003. The cooling capacity was measured by means of air enthalpy difference method. The hardware part of the test system consists of data collection unit and test instrument, while the software is programmed with Visual Basic 6.0, accompanied with the Microsoft Access database. The PLC unit and the touch screen are employed for local control of the system to achieve precise adjustment to the temperature and humidity of environmental chamber, the speed and flow of air. In view of the system characteristics of complex nonlinearity and being difficult to control exactly, test system adopts a fuzzy PID control based on plc to control experimental parameters such as temperature and humidity.
Keywords :
Visual BASIC; air conditioning; computerised instrumentation; fuzzy control; programmable controllers; test equipment; three-term control; touch sensitive screens; visual programming; Microsoft Access database; National Standard TB/T 1804-2003; PLC unit; Visual Basic 6.0; air enthalpy difference method; cooling capacity; data collection unit; environmental chamber humidity; fuzzy PID control; performance testing system; programmable logic controller; test instrument; touch screen; train air conditioning; Air conditioning; Control systems; Cooling; Hardware; Humidity control; Nonlinear control systems; Programmable control; Software testing; System testing; Temperature control; data acquisition; fuzzy control; performance test system; train air conditioning;
Conference_Titel :
Energy and Environment Technology, 2009. ICEET '09. International Conference on
Conference_Location :
Guilin, Guangxi
Print_ISBN :
978-0-7695-3819-8
DOI :
10.1109/ICEET.2009.27
