Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/4119
Title: Advanced control methodologies of DC-DC converters
Authors: He, Yi
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Power electronics
Issue Date: 2008
Source: He, Y. (2008). Advanced control methodologies of dc-dc converters. Doctoral thesis, Nanyang Technological University, Singapore.
Abstract: The focus of this thesis is on modeling and control of dc-dc converter. It begins with modeling of Luo converters under steady state using ripple approximate theorem. In addition, a small-signal state-space equation of high-order Luo converter has been derived, which forms the basis for designing a closed loop control system for Luo converters. In order to reduce the current overshoot during start up of the converter, a new SM controller has been proposed in this thesis. The analysis shows that the proposed controller can achieve better dynamic response than the traditional SM controller. Simulation and experiments results have been given to verify the analysis. The equivalent SM control has been proposed to achieve constant switching frequency. It also has some disadvantages such as non-zero steady state error and high cost due to the divider used in the control circuit. Adaptive control and one-cycle control have been combined with the equivalent SM control to solve these problems.
URI: https://hdl.handle.net/10356/4119
DOI: 10.32657/10356/4119
Rights: Nanyang Technological University
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Theses

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