Title :
Selection of optimal frequency band for motor cable communication
Author :
Ahola, Jero ; Kosonen, Antti ; Ahonen, Tero ; Tamminen, Jussi ; Lindh, Tuomo
Author_Institution :
Lappeenranta Univ. of Technol., Lappeenranta, Finland
Abstract :
In previous publications it has been demonstrated that the power line communication (PLC) is a feasible method for data transmission between a LV (Low Voltage) motor and a frequency converter. In this paper, attenuation and noise power spectrum of the motor cable communication channel are analyzed. The analysis is based on a laboratory test setup, laboratory measurements, simulation models, and known PSD (Power Spectral Density) limits for industry standard PLC (Power Line Communication) equipment. The modeling principles, used in simulation models, are presented. According to the analysis, in the researched cases, the frequency band 20-30 MHz is feasible for the motor cable communication. In addition, data transmission in the test setup is demonstrated with a low-cost 27 MHz radio transceiver operating at a license free RF band, and using the transmission power of approximately 1 mW.
Keywords :
carrier transmission on power lines; frequency convertors; variable speed drives; data transmission; frequency converter; low voltage motor; motor cable communication; optimal frequency band; power line communication; power spectral density; variable speed drive; Attenuation; Communication cables; Communication channels; Data communication; Frequency conversion; Laboratories; Low voltage; Power line communications; Programmable control; Testing; Data transmission; Diagnostics; Variable speed drive;
Conference_Titel :
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-4432-8
Electronic_ISBN :
978-90-75815-13-9
