Title :
Flux Balance Assurance in Output Transformers of Sine-Wave Inverters Using DC Autonulling Control Principle
Author :
Henrik Lavric;Rastko Fiser
Author_Institution :
University of Ljubljana, Faculty of Electrical Engineering, Tr?a?ka 25, SI-1000, Ljubljana, Slovenia
Abstract :
A new approach for flux imbalance prevention is proposed in this paper. The basic idea is to suppress DC component of the transformer primary voltage using the closed control loop around the hybrid amplifier with the first order low-pass filter and the integrator in the feedback path. The operation of proposed scheme is analyzed in detail analytically and by means of computer simulations. Experimental results are in accordance with simulations and confirm the suitability of the cost effective solution.
Keywords :
"Pulse width modulation inverters","Transformer cores","Detectors","Uninterruptible power systems","Frequency","Voltage control","Costs","Calibration","Magnetic cores","Topology"
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. EPE-PEMC 2006. 12th International
Print_ISBN :
1-4244-0121-6
DOI :
10.1109/EPEPEMC.2006.4778402
