Title :
Power frequency communication on long feeders and high levels of harmonic distortion
Author :
Mak, Sioe T. ; Maginnis, Richard L.
Author_Institution :
Distribution Control Systems Inc., Hazelwood, MO, USA
fDate :
10/1/1995 12:00:00 AM
Abstract :
TWACS is a unique power frequency communication (PFC) technology. The power voltage is modulated at the substation bus for outbound communication and inbound communication from a remote transponder is accomplished by drawing precisely controlled current pulses which are detectable at the distribution substation. The propagation characteristics of the TWACS signal and the frequency characteristics of the signal detector make it possible to communicate over very long distribution feeders and provide a high degree of immunity against harmonic distortions of the power system voltage and current
Keywords :
carrier transmission on power lines; distribution networks; harmonic distortion; power system harmonics; substations; TWACS; current pulses; distribution substation; frequency characteristics; harmonic distortion; inbound communication; long distribution feeders; outbound communication; power frequency communication; power system current; power system voltage; power voltage modulation; propagation characteristics; remote transponder; signal detector; substation bus; Communication system control; Communications technology; Detectors; Frequency; Pulse modulation; Pulse power systems; Signal detection; Substations; Transponders; Voltage control;
Journal_Title :
Power Delivery, IEEE Transactions on
