Title :
Real time hysteresis controller for relay testing
Author :
Khanniche, M.S. ; Lake, I.D.W.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. Coll. of Swansea, UK
fDate :
3/1/1994 12:00:00 AM
Abstract :
The paper presents a novel sinusoidal current controller for nonlinear loads based on an AC chopper topology using a hysteresis current control scheme. The Intel 80C196KC, 16-bit single chip microcontroller is used to implement the developed control algorithms online and in real time resulting in a significant reduction in weight and cost. The validity of the developed controller has been assessed in the development of an overcurrent test relay system; practical and simulated results are presented
Keywords :
automatic test equipment; choppers (circuits); digital control; electric current control; load (electric); microcontrollers; overcurrent protection; power system protection; relay protection; AC chopper topology; Intel 80C196KC; algorithms; hysteresis current control; nonlinear loads; online; overcurrent protection; real time; relay testing; single chip microcontroller; sinusoidal current controller;
Journal_Title :
Electric Power Applications, IEE Proceedings -
DOI :
10.1049/ip-epa:19949855
