Title :
Dynamic effects of inductor current ripple in peak-current and average-current mode control
Author :
Suntio, Teuvo ; Rahkala, Matti ; Gadoura, Idris ; Zenger, Kai
Author_Institution :
Electron. Lab., Oulu Univ., Finland
Abstract :
A consistent methodology to assess the effect of inductor current ripple on the dynamics of a peak-current and average-current controlled converter is presented. The duty-ratio constraints are derived in a unified basis leading to small-signal models describing and predicting accurately the dynamical behavior of a converter. The method is applied to a boost converter. The similarities of the controlling methods are precisely shown
Keywords :
control system synthesis; electric current control; harmonic distortion; power conversion harmonics; power convertors; power inductors; average-current mode control; inductor current ripple; peak-current mode control; power convertor dynamic effects; small-signal models; Frequency conversion; Inductors; Laboratories; Phase change materials; Power factor correction; Predictive models; Sampling methods; Switching converters; Switching frequency; Topology;
Conference_Titel :
Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-7108-9
DOI :
10.1109/IECON.2001.975929
