Title :
A Nonlinear Phenomenon on Self-Oscillating Current Controllers: The Indirect Synchronization
Author :
Olivier, Jean-Christophe ; Le Claire, Jean-Claude ; Loron, Luc
Author_Institution :
Dept. of Electr. Eng., Inst. de Rech. en Electrotech. et Electron. de Nantes Atlantique, St. Nazaire, France
fDate :
3/1/2010 12:00:00 AM
Abstract :
In this paper, a particular phenomenon called indirect synchronization is investigated on self-oscillating current controllers. This phenomenon appears in medium frequencies, when the reference signal frequency tends to the switching frequency. In a previous work, it has been shown that the indirect synchronization causes discontinuities on the frequential response of the system, making the various linear or continuous models inefficient. For high-accuracy applications, such as active filtering or high-precision power supply, these discontinuities are a real problem. Thus, it seems important to offer an analytical description of this phenomenon. In this paper, an analytical model of the indirect synchronization phenomenon is proposed and checked by simulation and experimental results.
Keywords :
DC-AC power convertors; PWM power convertors; active filters; electric current control; active filtering; continuous models; frequential response; high-accuracy applications; high-precision power supply; indirect synchronization; nonlinear phenomenon; reference signal frequency; self-oscillating current controllers; DC–AC power conversion; nonlinear systems; pulse width modulation;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2009.2034184