Robust controller for an autonomous small refrigeration unit

作     者：Kattakayam, TA Srinivasan, K 

作者机构：KACST Energy Res Inst Riyadh 11442 Saudi Arabia Indian Inst Sci Dept Engn Mech Bangalore 560012 Karnataka India Curtin Univ Technol Sch Mech Engn Perth WA 6845 Australia 

出 版 物：《IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY》 (IEE Proc Sci Meas Technol)

年 卷 期：1999年第146卷第3期

页      面：159-163页

核心收录：

主　　题：start conditions Control of heat systems output parameters controllers compressors Control engineering computing Power convertors and power supplies to apparatus off cycle conditions photovoltaic power systems autonomous small refrigeration unit constructional features watchdog circuit Refrigeration and cold storage generator set backup microprocessor based controller PWM section Controllers computerised control three voltage levels of operation storage of vaccines robust controller supervisory monitoring and control PWM invertors control strategy status signals uninterrupted refrigeration input parameters run conditions voltage regulators refrigerator compressor Voltage control refrigeration inverter robust control voltage control field of photovoltaic panels Stability in control theory Solar power stations and photovoltaic power systems 

摘      要：The authors describe the constructional features of a controller for operating an autonomous refrigeration unit powered by a field of photovoltaic panels and backed up by a generator set. The controller enables three voltage levels of operation of an inverter to meet the start, run and off cycle conditions of the refrigerator compressor. The algorithm considers several input and output parameters and status signals from each subsystem of the unit to deduce a control strategy. Such units find application for storage of vaccines and life-saving medicines requiring uninterrupted refrigeration, in medical shops, rural health centres, veterinary laboratories etc.