Advanced control methodologies of DC-DC converters
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...
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| Format: | Thesis |
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2008
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| Online Access: | https://hdl.handle.net/10356/4119 |
| _version_ | 1811689581101187072 |
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| author | He, Yi |
| author2 | Luo Fang Lin |
| author_facet | Luo Fang Lin He, Yi |
| author_sort | He, Yi |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T05:50:22Z |
| format | Thesis |
| id | ntu-10356/4119 |
| institution | Nanyang Technological University |
| last_indexed | 2024-10-01T05:50:22Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/41192023-07-04T16:43:40Z Advanced control methodologies of DC-DC converters He, Yi Luo Fang Lin School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Power electronics 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. DOCTOR OF PHILOSOPHY (EEE) 2008-09-17T09:44:54Z 2008-09-17T09:44:54Z 2008 2008 Thesis He, Y. (2008). Advanced control methodologies of dc-dc converters. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/4119 10.32657/10356/4119 Nanyang Technological University application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Power electronics He, Yi Advanced control methodologies of DC-DC converters |
| title | Advanced control methodologies of DC-DC converters |
| title_full | Advanced control methodologies of DC-DC converters |
| title_fullStr | Advanced control methodologies of DC-DC converters |
| title_full_unstemmed | Advanced control methodologies of DC-DC converters |
| title_short | Advanced control methodologies of DC-DC converters |
| title_sort | advanced control methodologies of dc dc converters |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Power electronics |
| url | https://hdl.handle.net/10356/4119 |
| work_keys_str_mv | AT heyi advancedcontrolmethodologiesofdcdcconverters |