Two-Phase Short-Term Frequency Response Scheme of a DFIG-Based Wind Farm
The kinetic energy stored in the doubly-fed induction generators (DFIG)-based wind farm can be utilized to sustain the dynamic system frequency. However, difficulties arise in determining the control gain to effectively improve the frequency nadir and smoothly return to the maximum power point track...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2021-11-01
|
| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2021.781989/full |
| _version_ | 1818823152848863232 |
|---|---|
| author | Dejian Yang Shun Sang Shun Sang Xinsong Zhang |
| author_facet | Dejian Yang Shun Sang Shun Sang Xinsong Zhang |
| author_sort | Dejian Yang |
| collection | DOAJ |
| description | The kinetic energy stored in the doubly-fed induction generators (DFIG)-based wind farm can be utilized to sustain the dynamic system frequency. However, difficulties arise in determining the control gain to effectively improve the frequency nadir and smoothly return to the maximum power point tracking (MPPT) operation. This paper addresses a two-phase short-term frequency response (STFR) scheme to boost the frequency nadir and minimize the second drop in the system frequency based on a piecewise control gain. To achieve the first goal, a constant control coefficient, which is determined according to the initial operating conditions of the DFIG-based wind farm, is employed until the frequency nadir produces. To achieve the second goal, the control coefficient, which changes with time, facilitates to smoothly return to the MPPT operation. The effectiveness of the proposed two-phase STFR scheme is verified under various wind power penetration levels, wind speeds, and disturbances. The results reveal that the frequency nadir is improved, and simultaneously, it smoothly returns to the MPPT operation and minimizes the second drop in the system frequency. |
| first_indexed | 2024-12-18T23:35:26Z |
| format | Article |
| id | doaj.art-ec34726179644660a982065e5bc39c33 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-12-18T23:35:26Z |
| publishDate | 2021-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-ec34726179644660a982065e5bc39c332022-12-21T20:47:35ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2021-11-01910.3389/fenrg.2021.781989781989Two-Phase Short-Term Frequency Response Scheme of a DFIG-Based Wind FarmDejian Yang0Shun Sang1Shun Sang2Xinsong Zhang3Key Laboratory of Modern Power System Simulation and Control and Renewable Energy Technology Ministry of Education (Northeast Electric Power University), Jilin, ChinaKey Laboratory of Control of Power Transmission and Conversion (Shanghai Jiao Tong University), Ministry of Education, Shanghai, ChinaDepartment of Electrical Engineering, Nantong University, Nantong, ChinaDepartment of Electrical Engineering, Nantong University, Nantong, ChinaThe kinetic energy stored in the doubly-fed induction generators (DFIG)-based wind farm can be utilized to sustain the dynamic system frequency. However, difficulties arise in determining the control gain to effectively improve the frequency nadir and smoothly return to the maximum power point tracking (MPPT) operation. This paper addresses a two-phase short-term frequency response (STFR) scheme to boost the frequency nadir and minimize the second drop in the system frequency based on a piecewise control gain. To achieve the first goal, a constant control coefficient, which is determined according to the initial operating conditions of the DFIG-based wind farm, is employed until the frequency nadir produces. To achieve the second goal, the control coefficient, which changes with time, facilitates to smoothly return to the MPPT operation. The effectiveness of the proposed two-phase STFR scheme is verified under various wind power penetration levels, wind speeds, and disturbances. The results reveal that the frequency nadir is improved, and simultaneously, it smoothly returns to the MPPT operation and minimizes the second drop in the system frequency.https://www.frontiersin.org/articles/10.3389/fenrg.2021.781989/fullgenerationpower system controlshort-term frequency responsetwo phasesecond frequency drop |
| spellingShingle | Dejian Yang Shun Sang Shun Sang Xinsong Zhang Two-Phase Short-Term Frequency Response Scheme of a DFIG-Based Wind Farm Frontiers in Energy Research generation power system control short-term frequency response two phase second frequency drop |
| title | Two-Phase Short-Term Frequency Response Scheme of a DFIG-Based Wind Farm |
| title_full | Two-Phase Short-Term Frequency Response Scheme of a DFIG-Based Wind Farm |
| title_fullStr | Two-Phase Short-Term Frequency Response Scheme of a DFIG-Based Wind Farm |
| title_full_unstemmed | Two-Phase Short-Term Frequency Response Scheme of a DFIG-Based Wind Farm |
| title_short | Two-Phase Short-Term Frequency Response Scheme of a DFIG-Based Wind Farm |
| title_sort | two phase short term frequency response scheme of a dfig based wind farm |
| topic | generation power system control short-term frequency response two phase second frequency drop |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2021.781989/full |
| work_keys_str_mv | AT dejianyang twophaseshorttermfrequencyresponseschemeofadfigbasedwindfarm AT shunsang twophaseshorttermfrequencyresponseschemeofadfigbasedwindfarm AT shunsang twophaseshorttermfrequencyresponseschemeofadfigbasedwindfarm AT xinsongzhang twophaseshorttermfrequencyresponseschemeofadfigbasedwindfarm |