New frequency stability assessment based on contribution rates of wind power plants
In future power systems, various generation units are expected to contribute to frequency stability. Depending on their characteristics, these units will support the frequency stability in diverse ways. Traditionally, power systems have relied on synchronous generators (SGs), ensuring sufficient ine...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | International Journal of Electrical Power & Energy Systems |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061524006112 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832595413903867904 |
|---|---|
| author | SungHoon Lim KangWon Seo Jung-Wook Park Kwang Y. Lee |
| author_facet | SungHoon Lim KangWon Seo Jung-Wook Park Kwang Y. Lee |
| author_sort | SungHoon Lim |
| collection | DOAJ |
| description | In future power systems, various generation units are expected to contribute to frequency stability. Depending on their characteristics, these units will support the frequency stability in diverse ways. Traditionally, power systems have relied on synchronous generators (SGs), ensuring sufficient inertia and providing ancillary services for frequency stability. However, with the integration of multiple wind power plants (WPPs), which have substantially different characteristics, many countries are restructuring their ancillary service markets to accommodate WPPs.This study proposes a novel frequency stability contribution rate index to analyze and compare the contribution of SGs and WPPs to frequency stability. To do so, this paper first analyzes the factors from SGs and WPPs, such as inertia, power reserves, resource conditions, and available frequency responses, and compares their roles in supporting frequency stability. The proposed index is then calculated using a multiple linear regression model that incorporates these factors. Therefore, this index provides a comprehensive evaluation of SGs and WPPs in terms of their contribution to frequency stability, offering valuable insights into their roles in supporting three key frequency stability indicators, the rate of change of frequency, frequency nadir, and settling frequency. The effectiveness of the proposed index is verified through case studies on the IEEE 39-bus system. In all cases, the coefficient of determination exceeds 95%, indicating a highly predictive regression model. Furthermore, as the penetration level of WPPs rises from 20% to 60%, the contribution weight of factors related to WPPs increases while that of SGs decreases. |
| format | Article |
| id | doaj-art-9d3491bd82684ee19c7b436ae9bf23dc |
| institution | Kabale University |
| issn | 0142-0615 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-9d3491bd82684ee19c7b436ae9bf23dc2025-01-19T06:23:53ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-03-01164110388New frequency stability assessment based on contribution rates of wind power plantsSungHoon Lim0KangWon Seo1Jung-Wook Park2Kwang Y. Lee3Department of Electrical Engineering, Jeonbuk National University, Jeonju 54896, South KoreaSchool of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, South KoreaSchool of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, South Korea; Corresponding author.Department of Electrical & Computer Engineering, Baylor University, Waco, TX 76798, USAIn future power systems, various generation units are expected to contribute to frequency stability. Depending on their characteristics, these units will support the frequency stability in diverse ways. Traditionally, power systems have relied on synchronous generators (SGs), ensuring sufficient inertia and providing ancillary services for frequency stability. However, with the integration of multiple wind power plants (WPPs), which have substantially different characteristics, many countries are restructuring their ancillary service markets to accommodate WPPs.This study proposes a novel frequency stability contribution rate index to analyze and compare the contribution of SGs and WPPs to frequency stability. To do so, this paper first analyzes the factors from SGs and WPPs, such as inertia, power reserves, resource conditions, and available frequency responses, and compares their roles in supporting frequency stability. The proposed index is then calculated using a multiple linear regression model that incorporates these factors. Therefore, this index provides a comprehensive evaluation of SGs and WPPs in terms of their contribution to frequency stability, offering valuable insights into their roles in supporting three key frequency stability indicators, the rate of change of frequency, frequency nadir, and settling frequency. The effectiveness of the proposed index is verified through case studies on the IEEE 39-bus system. In all cases, the coefficient of determination exceeds 95%, indicating a highly predictive regression model. Furthermore, as the penetration level of WPPs rises from 20% to 60%, the contribution weight of factors related to WPPs increases while that of SGs decreases.http://www.sciencedirect.com/science/article/pii/S0142061524006112Frequency stabilityInertia responseParticipation ratePrimary frequency responseWind power plant |
| spellingShingle | SungHoon Lim KangWon Seo Jung-Wook Park Kwang Y. Lee New frequency stability assessment based on contribution rates of wind power plants International Journal of Electrical Power & Energy Systems Frequency stability Inertia response Participation rate Primary frequency response Wind power plant |
| title | New frequency stability assessment based on contribution rates of wind power plants |
| title_full | New frequency stability assessment based on contribution rates of wind power plants |
| title_fullStr | New frequency stability assessment based on contribution rates of wind power plants |
| title_full_unstemmed | New frequency stability assessment based on contribution rates of wind power plants |
| title_short | New frequency stability assessment based on contribution rates of wind power plants |
| title_sort | new frequency stability assessment based on contribution rates of wind power plants |
| topic | Frequency stability Inertia response Participation rate Primary frequency response Wind power plant |
| url | http://www.sciencedirect.com/science/article/pii/S0142061524006112 |
| work_keys_str_mv | AT sunghoonlim newfrequencystabilityassessmentbasedoncontributionratesofwindpowerplants AT kangwonseo newfrequencystabilityassessmentbasedoncontributionratesofwindpowerplants AT jungwookpark newfrequencystabilityassessmentbasedoncontributionratesofwindpowerplants AT kwangylee newfrequencystabilityassessmentbasedoncontributionratesofwindpowerplants |