The suppression of DC‐link voltage fluctuations through a source active current feedforward in the active power filter
Abstract An active power filter (APF), which operates under the power‐balance‐based scheme (PB scheme), suffers heavier DC‐link voltage fluctuation when the loads change suddenly, so that it is apt to be interfered and degraded or even out of stable operation. By analyzing the cause of DC‐link volta...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-02-01
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| Series: | IET Power Electronics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/pel2.12001 |
| _version_ | 1797991255273111552 |
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| author | Runquan Meng Yi Du Xiaoqing Han Peng Wang |
| author_facet | Runquan Meng Yi Du Xiaoqing Han Peng Wang |
| author_sort | Runquan Meng |
| collection | DOAJ |
| description | Abstract An active power filter (APF), which operates under the power‐balance‐based scheme (PB scheme), suffers heavier DC‐link voltage fluctuation when the loads change suddenly, so that it is apt to be interfered and degraded or even out of stable operation. By analyzing the cause of DC‐link voltage fluctuation, this study proposes an improved PB scheme which feeds forward the increment of the fundamental‐frequency positive sequence component of the source current. The feed‐forward channel is designed by use of the cascaded delayed signal cancellation algorithm and integrated into the conventional PB scheme APF without adding any extra hardware circuit. The current increment fed forward is added into the output of the voltage controller to timely amend the reference current of the current control loop, and thus the active power flow, which caused by loads change, between the APF and its external circuitry can be suppressed. As a result, the DC‐link voltage fluctuation is mitigated to allow the APF to better accommodate the abrupt load changes. The configuration of the improved control system is introduced and the stability is analysed. The experiment results demonstrate the effectiveness of the proposed control scheme. |
| first_indexed | 2024-04-11T08:49:16Z |
| format | Article |
| id | doaj.art-08023ed42bbf45b29db5a377a6865ebd |
| institution | Directory Open Access Journal |
| issn | 1755-4535 1755-4543 |
| language | English |
| last_indexed | 2024-04-11T08:49:16Z |
| publishDate | 2021-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Power Electronics |
| spelling | doaj.art-08023ed42bbf45b29db5a377a6865ebd2022-12-22T04:33:50ZengWileyIET Power Electronics1755-45351755-45432021-02-0114348149110.1049/pel2.12001The suppression of DC‐link voltage fluctuations through a source active current feedforward in the active power filterRunquan Meng0Yi Du1Xiaoqing Han2Peng Wang3School of Electrical and Power Engineering Taiyuan University of Technology Taiyuan Shanxi Province ChinaSchool of Electrical and Power Engineering Taiyuan University of Technology Taiyuan Shanxi Province ChinaSchool of Electrical and Power Engineering Taiyuan University of Technology Taiyuan Shanxi Province ChinaCollege of Electrical and Electronic Engineering Nanyang Technological University SingaporeAbstract An active power filter (APF), which operates under the power‐balance‐based scheme (PB scheme), suffers heavier DC‐link voltage fluctuation when the loads change suddenly, so that it is apt to be interfered and degraded or even out of stable operation. By analyzing the cause of DC‐link voltage fluctuation, this study proposes an improved PB scheme which feeds forward the increment of the fundamental‐frequency positive sequence component of the source current. The feed‐forward channel is designed by use of the cascaded delayed signal cancellation algorithm and integrated into the conventional PB scheme APF without adding any extra hardware circuit. The current increment fed forward is added into the output of the voltage controller to timely amend the reference current of the current control loop, and thus the active power flow, which caused by loads change, between the APF and its external circuitry can be suppressed. As a result, the DC‐link voltage fluctuation is mitigated to allow the APF to better accommodate the abrupt load changes. The configuration of the improved control system is introduced and the stability is analysed. The experiment results demonstrate the effectiveness of the proposed control scheme.https://doi.org/10.1049/pel2.12001Voltage controlCurrent controlPower and energy controlControl of electric power systemsPower filters |
| spellingShingle | Runquan Meng Yi Du Xiaoqing Han Peng Wang The suppression of DC‐link voltage fluctuations through a source active current feedforward in the active power filter IET Power Electronics Voltage control Current control Power and energy control Control of electric power systems Power filters |
| title | The suppression of DC‐link voltage fluctuations through a source active current feedforward in the active power filter |
| title_full | The suppression of DC‐link voltage fluctuations through a source active current feedforward in the active power filter |
| title_fullStr | The suppression of DC‐link voltage fluctuations through a source active current feedforward in the active power filter |
| title_full_unstemmed | The suppression of DC‐link voltage fluctuations through a source active current feedforward in the active power filter |
| title_short | The suppression of DC‐link voltage fluctuations through a source active current feedforward in the active power filter |
| title_sort | suppression of dc link voltage fluctuations through a source active current feedforward in the active power filter |
| topic | Voltage control Current control Power and energy control Control of electric power systems Power filters |
| url | https://doi.org/10.1049/pel2.12001 |
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