High-Efficiency Line Conditioners With Enhanced Performance for Operation With Non-Linear Loads

This paper presents the analysis, design, and experimental performance verification of a serial type line conditioner. Since it processes only a fraction of the load power, the overall converter losses tend to be lower and the efficiency of the conditioner higher. Regarding the dynamic performance,...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2012-01, Vol.59 (1), p.412-421
Main Authors: Soeiro, T. B., Petry, C. A., Lopes, L. A. C., Perin, A. J.
Format: Article
Language:English
Subjects:
AC-AC converter
Conditioners
Conditioning
Converters
Dynamical systems
Feedback control
Inductance
line conditioners
Nonlinear dynamics
Nonlinearity
Oscillations
Pulse width modulation
Rectifiers
Resistance
Serials
Studies
Topology
Voltage control
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Summary:This paper presents the analysis, design, and experimental performance verification of a serial type line conditioner. Since it processes only a fraction of the load power, the overall converter losses tend to be lower and the efficiency of the conditioner higher. Regarding the dynamic performance, the line inductance, which results in a positive zero in the transfer function of the plant, is taken into consideration when designing a voltage controller with higher bandwidth for faster response. In addition, a virtual resistance is included in the control of the system to damp oscillations often seen for operations at light load and with nonlinear load conditions. Experimental results obtained with a 10 kVA prototype of a serial line conditioner fed from the load side and the proposed feedback control scheme are presented to demonstrate the superior performance of the line conditioner.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2011.2138670