Title :
An investigation on electrical performance of variable-frequency drives for air-conditioning applications
Author_Institution :
Fac. of Sci. & Technol., Univ. of Macau, Macau
Abstract :
Variable-voltage variable-frequency (VVVF) drives has been widely accepted by electrical and building services engineers. Electronic variable-frequency drives have been widely adopted in the area of heating, ventilation and air-conditioning (HVAC) applications and became the substantial energy consumption in both commercial and residential buildings. Since the speed of the single-phase compressor cannot be varied, it is either switched ldquoONrdquo, working at maximum capacity or switched ldquoOFFrdquo by a thermistor. The magnet-assisted reluctance motor driven compressor delivers an enhanced performance over conventional AC induction motor driven system, providing variable-speed operation as the temperature changes, while improving the overall energy efficiency. This paper aims to investigate the performance of both conventional single-phase induction motor and the most recent variable-frequency DC motor compressor drives for residential air-conditioning applications. Their cooling performance and harmonic distortions will be investigated and compared.
Keywords :
DC motor drives; HVAC; compressors; harmonic distortion; induction motor drives; power consumption; reluctance motor drives; variable speed drives; DC motor compressor drive; HVAC application; building service engineer; electrical service engineer; energy consumption; energy efficiency; harmonic distortion; heating-ventilation-air-conditioning system; magnet-assisted reluctance motor; single-phase compressor; single-phase induction motor; thermistor; variable-speed operation; variable-voltage variable-frequency drive; Building services; Energy consumption; Energy efficiency; Heating; Induction motors; Power engineering and energy; Reluctance motors; Temperature; Thermistors; Ventilation; Variable-frequency drives; energy efficiency; power quality;
Conference_Titel :
Electric Power Conference, 2008. EPEC 2008. IEEE Canada
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-2894-6
Electronic_ISBN :
978-1-4244-2895-3
DOI :
10.1109/EPC.2008.4763373