Review and Selection Strategy for High-Accuracy Modeling of PWM Converters in DCM
Among various modeling methods for DC-DC converters introduced in the past two decades, the state-space averaging (SSA) and the circuit averaging (CA) are the most general and popular exhibiting high accuracy. However, their deduction approaches are not entirely equivalent since they incorporate dif...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Journal of Electrical and Computer Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/3901693 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832558907055144960 |
|---|---|
| author | Yu-Jun Mao Chi-Seng Lam Sai-Weng Sin Man-Chung Wong Rui Paulo Martins |
| author_facet | Yu-Jun Mao Chi-Seng Lam Sai-Weng Sin Man-Chung Wong Rui Paulo Martins |
| author_sort | Yu-Jun Mao |
| collection | DOAJ |
| description | Among various modeling methods for DC-DC converters introduced in the past two decades, the state-space averaging (SSA) and the circuit averaging (CA) are the most general and popular exhibiting high accuracy. However, their deduction approaches are not entirely equivalent since they incorporate different averaging processes, thus yielding different small signal transfer functions even under identical operating conditions. Some research studies claimed that the improved SSA can obtain the highest accuracy among all the modeling methods, but this paper discovers and clearly verifies that this is not the case. In this paper, we first review and study these two modeling methods for various DC-DC converters operating in the discontinuous conduction mode (DCM). We also streamline the general model-deriving processes for DC-DC converters, and test and compare the accuracy of these two methods under various conditions. Finally, we provide a selection strategy for a high-accuracy modeling method for different DC-DC converters operating in DCM and verified by simulations, which revealed necessary and beneficial for designing a more accurate DCM closed-loop controller for DC-DC converters, thus achieving better stability and transient response. |
| format | Article |
| id | doaj-art-f9de651c3c484b039d20b8017207d45a |
| institution | Kabale University |
| issn | 2090-0147 2090-0155 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Electrical and Computer Engineering |
| spelling | doaj-art-f9de651c3c484b039d20b8017207d45a2025-02-03T01:31:22ZengWileyJournal of Electrical and Computer Engineering2090-01472090-01552018-01-01201810.1155/2018/39016933901693Review and Selection Strategy for High-Accuracy Modeling of PWM Converters in DCMYu-Jun Mao0Chi-Seng Lam1Sai-Weng Sin2Man-Chung Wong3Rui Paulo Martins4State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau 999078, ChinaState Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau 999078, ChinaState Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau 999078, ChinaState Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau 999078, ChinaState Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau 999078, ChinaAmong various modeling methods for DC-DC converters introduced in the past two decades, the state-space averaging (SSA) and the circuit averaging (CA) are the most general and popular exhibiting high accuracy. However, their deduction approaches are not entirely equivalent since they incorporate different averaging processes, thus yielding different small signal transfer functions even under identical operating conditions. Some research studies claimed that the improved SSA can obtain the highest accuracy among all the modeling methods, but this paper discovers and clearly verifies that this is not the case. In this paper, we first review and study these two modeling methods for various DC-DC converters operating in the discontinuous conduction mode (DCM). We also streamline the general model-deriving processes for DC-DC converters, and test and compare the accuracy of these two methods under various conditions. Finally, we provide a selection strategy for a high-accuracy modeling method for different DC-DC converters operating in DCM and verified by simulations, which revealed necessary and beneficial for designing a more accurate DCM closed-loop controller for DC-DC converters, thus achieving better stability and transient response.http://dx.doi.org/10.1155/2018/3901693 |
| spellingShingle | Yu-Jun Mao Chi-Seng Lam Sai-Weng Sin Man-Chung Wong Rui Paulo Martins Review and Selection Strategy for High-Accuracy Modeling of PWM Converters in DCM Journal of Electrical and Computer Engineering |
| title | Review and Selection Strategy for High-Accuracy Modeling of PWM Converters in DCM |
| title_full | Review and Selection Strategy for High-Accuracy Modeling of PWM Converters in DCM |
| title_fullStr | Review and Selection Strategy for High-Accuracy Modeling of PWM Converters in DCM |
| title_full_unstemmed | Review and Selection Strategy for High-Accuracy Modeling of PWM Converters in DCM |
| title_short | Review and Selection Strategy for High-Accuracy Modeling of PWM Converters in DCM |
| title_sort | review and selection strategy for high accuracy modeling of pwm converters in dcm |
| url | http://dx.doi.org/10.1155/2018/3901693 |
| work_keys_str_mv | AT yujunmao reviewandselectionstrategyforhighaccuracymodelingofpwmconvertersindcm AT chisenglam reviewandselectionstrategyforhighaccuracymodelingofpwmconvertersindcm AT saiwengsin reviewandselectionstrategyforhighaccuracymodelingofpwmconvertersindcm AT manchungwong reviewandselectionstrategyforhighaccuracymodelingofpwmconvertersindcm AT ruipaulomartins reviewandselectionstrategyforhighaccuracymodelingofpwmconvertersindcm |