Combined feedback–feedforward control of Ćuk CCM converter for achieving fast transient response
Abstract The Ćuk converters operating in continuous conduction mode (CCM) can be preferred in applications such as microprocessor power delivery and pulsed load because these circuits have advantages of being able to step up/down, a small number of power components, and low input/output current ripp...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | IET Circuits, Devices and Systems |
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| Online Access: | https://doi.org/10.1049/cds2.12085 |
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| author | Byeongcheol Han Seok‐Min Wi Minsung Kim |
| author_facet | Byeongcheol Han Seok‐Min Wi Minsung Kim |
| author_sort | Byeongcheol Han |
| collection | DOAJ |
| description | Abstract The Ćuk converters operating in continuous conduction mode (CCM) can be preferred in applications such as microprocessor power delivery and pulsed load because these circuits have advantages of being able to step up/down, a small number of power components, and low input/output current ripples. However, they show poor transient performance due to right‐half‐plane‐zeros (RHPZs) in the closed‐loop transfer function of the Ćuk CCM converter. To enhance the transient response, a combined feedback–feedforward control for the Ćuk CCM converter is proposed. The proposed control scheme comprises a feedback control signal based on a Lyapunov function and a duty‐ratio feedforward control signal. A Lyapunov‐function‐based controller (LBC) achieves fast dynamic response even under large‐signal variations from the operating point. The duty ratio feedforward controller (DFFC) is developed to predict the effect of the disturbances and compensate it, while alleviating the burden of LBC. The proposed control logic makes the closed‐loop system of the Ćuk CCM converter globally exponentially stable and thus provides a fast transient response even under large‐signal variations. To construct the proposed controller, the authors make use of the large‐signal averaged model of the Ćuk CCM converter, and consider the parasitic elements. To verify the proposed control scheme, numerical simulations and experimental tests are conducted. |
| format | Article |
| id | doaj-art-469cd0618f684ac0b47633d7b332f99d |
| institution | Kabale University |
| issn | 1751-858X 1751-8598 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Circuits, Devices and Systems |
| spelling | doaj-art-469cd0618f684ac0b47633d7b332f99d2025-02-03T06:47:11ZengWileyIET Circuits, Devices and Systems1751-858X1751-85982022-01-01161718010.1049/cds2.12085Combined feedback–feedforward control of Ćuk CCM converter for achieving fast transient responseByeongcheol Han0Seok‐Min Wi1Minsung Kim2School of Electronics Engineering & School of Electronic and Electrical Engineering Kyungpook National University Daegu South KoreaMechatronics R&D Center Samsung Electronics Hwasung South KoreaDivision of Electronics and Electrical Engineering Dongguk University Seoul South KoreaAbstract The Ćuk converters operating in continuous conduction mode (CCM) can be preferred in applications such as microprocessor power delivery and pulsed load because these circuits have advantages of being able to step up/down, a small number of power components, and low input/output current ripples. However, they show poor transient performance due to right‐half‐plane‐zeros (RHPZs) in the closed‐loop transfer function of the Ćuk CCM converter. To enhance the transient response, a combined feedback–feedforward control for the Ćuk CCM converter is proposed. The proposed control scheme comprises a feedback control signal based on a Lyapunov function and a duty‐ratio feedforward control signal. A Lyapunov‐function‐based controller (LBC) achieves fast dynamic response even under large‐signal variations from the operating point. The duty ratio feedforward controller (DFFC) is developed to predict the effect of the disturbances and compensate it, while alleviating the burden of LBC. The proposed control logic makes the closed‐loop system of the Ćuk CCM converter globally exponentially stable and thus provides a fast transient response even under large‐signal variations. To construct the proposed controller, the authors make use of the large‐signal averaged model of the Ćuk CCM converter, and consider the parasitic elements. To verify the proposed control scheme, numerical simulations and experimental tests are conducted.https://doi.org/10.1049/cds2.12085switching convertorsfeedforwardtransient responsecontrol system synthesisfeedbackclosed loop systems |
| spellingShingle | Byeongcheol Han Seok‐Min Wi Minsung Kim Combined feedback–feedforward control of Ćuk CCM converter for achieving fast transient response IET Circuits, Devices and Systems switching convertors feedforward transient response control system synthesis feedback closed loop systems |
| title | Combined feedback–feedforward control of Ćuk CCM converter for achieving fast transient response |
| title_full | Combined feedback–feedforward control of Ćuk CCM converter for achieving fast transient response |
| title_fullStr | Combined feedback–feedforward control of Ćuk CCM converter for achieving fast transient response |
| title_full_unstemmed | Combined feedback–feedforward control of Ćuk CCM converter for achieving fast transient response |
| title_short | Combined feedback–feedforward control of Ćuk CCM converter for achieving fast transient response |
| title_sort | combined feedback feedforward control of cuk ccm converter for achieving fast transient response |
| topic | switching convertors feedforward transient response control system synthesis feedback closed loop systems |
| url | https://doi.org/10.1049/cds2.12085 |
| work_keys_str_mv | AT byeongcheolhan combinedfeedbackfeedforwardcontrolofcukccmconverterforachievingfasttransientresponse AT seokminwi combinedfeedbackfeedforwardcontrolofcukccmconverterforachievingfasttransientresponse AT minsungkim combinedfeedbackfeedforwardcontrolofcukccmconverterforachievingfasttransientresponse |