Broadband Impedance Modeling and Sub/Super-synchronous Oscillation Analysis of Steam Turbine Generator
Impedance-based modeling and analysis method is currently one of the effective tools to analyze and solve the problem of renewable energy grid-connected broadband oscillation. Centralized development of long-distance transmission is an important form of renewable energy development and utilization i...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
State Grid Energy Research Institute
2024-07-01
|
| Series: | Zhongguo dianli |
| Subjects: | |
| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202312081 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850228417337753600 |
|---|---|
| author | Muchi ZHAO Haijiao WANG Chun LIU Guoqing HE Yanxia SUN Panpan WANG |
| author_facet | Muchi ZHAO Haijiao WANG Chun LIU Guoqing HE Yanxia SUN Panpan WANG |
| author_sort | Muchi ZHAO |
| collection | DOAJ |
| description | Impedance-based modeling and analysis method is currently one of the effective tools to analyze and solve the problem of renewable energy grid-connected broadband oscillation. Centralized development of long-distance transmission is an important form of renewable energy development and utilization in China. Among the power generation equipment in the renewable energy base, the impedance model of wind and solar power generation equipment has been built perfectly, but the current broadband impedance model of the steam turbine generator has some simplification, failing to completely reflect the broadband impedance characteristics of the steam turbine generator. Based on the frequency-domain small-signal modeling method, a broadband impedance model of the steam turbine generator containing the prime mover, speed governor, exciter system, shaft system, and synchronous generator was established. A simulation model of a steam turbine generator was built in Matlab/Simulink, and the correctness of the proposed model was verified by frequency sweeping. The influence of different links on the impedance was analyzed. Finally, the effectiveness of the proposed model in the analysis of the sub/super-synchronous oscillation problem was verified by studying a steam turbine generator connected to the grid via a series compensation device. |
| format | Article |
| id | doaj-art-eaf0454e856b4d19b9b046fbf99c6a5f |
| institution | OA Journals |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2024-07-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-eaf0454e856b4d19b9b046fbf99c6a5f2025-08-20T02:04:31ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492024-07-0157723824610.11930/j.issn.1004-9649.202312081zgdl-56-7-zhaomuchiBroadband Impedance Modeling and Sub/Super-synchronous Oscillation Analysis of Steam Turbine GeneratorMuchi ZHAO0Haijiao WANG1Chun LIU2Guoqing HE3Yanxia SUN4Panpan WANG5National Key Laboratory of Renewable Energy Grid-Integration (China Electric Power Research Institute), Beijing 100192, ChinaNational Key Laboratory of Renewable Energy Grid-Integration (China Electric Power Research Institute), Beijing 100192, ChinaNational Key Laboratory of Renewable Energy Grid-Integration (China Electric Power Research Institute), Beijing 100192, ChinaNational Key Laboratory of Renewable Energy Grid-Integration (China Electric Power Research Institute), Beijing 100192, ChinaNational Key Laboratory of Renewable Energy Grid-Integration (China Electric Power Research Institute), Beijing 100192, ChinaNational Key Laboratory of Renewable Energy Grid-Integration (China Electric Power Research Institute), Beijing 100192, ChinaImpedance-based modeling and analysis method is currently one of the effective tools to analyze and solve the problem of renewable energy grid-connected broadband oscillation. Centralized development of long-distance transmission is an important form of renewable energy development and utilization in China. Among the power generation equipment in the renewable energy base, the impedance model of wind and solar power generation equipment has been built perfectly, but the current broadband impedance model of the steam turbine generator has some simplification, failing to completely reflect the broadband impedance characteristics of the steam turbine generator. Based on the frequency-domain small-signal modeling method, a broadband impedance model of the steam turbine generator containing the prime mover, speed governor, exciter system, shaft system, and synchronous generator was established. A simulation model of a steam turbine generator was built in Matlab/Simulink, and the correctness of the proposed model was verified by frequency sweeping. The influence of different links on the impedance was analyzed. Finally, the effectiveness of the proposed model in the analysis of the sub/super-synchronous oscillation problem was verified by studying a steam turbine generator connected to the grid via a series compensation device.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202312081impedance modelingsteam turbine generatorsub-synchronous oscillationshaft system modelingseries compensation |
| spellingShingle | Muchi ZHAO Haijiao WANG Chun LIU Guoqing HE Yanxia SUN Panpan WANG Broadband Impedance Modeling and Sub/Super-synchronous Oscillation Analysis of Steam Turbine Generator Zhongguo dianli impedance modeling steam turbine generator sub-synchronous oscillation shaft system modeling series compensation |
| title | Broadband Impedance Modeling and Sub/Super-synchronous Oscillation Analysis of Steam Turbine Generator |
| title_full | Broadband Impedance Modeling and Sub/Super-synchronous Oscillation Analysis of Steam Turbine Generator |
| title_fullStr | Broadband Impedance Modeling and Sub/Super-synchronous Oscillation Analysis of Steam Turbine Generator |
| title_full_unstemmed | Broadband Impedance Modeling and Sub/Super-synchronous Oscillation Analysis of Steam Turbine Generator |
| title_short | Broadband Impedance Modeling and Sub/Super-synchronous Oscillation Analysis of Steam Turbine Generator |
| title_sort | broadband impedance modeling and sub super synchronous oscillation analysis of steam turbine generator |
| topic | impedance modeling steam turbine generator sub-synchronous oscillation shaft system modeling series compensation |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202312081 |
| work_keys_str_mv | AT muchizhao broadbandimpedancemodelingandsubsupersynchronousoscillationanalysisofsteamturbinegenerator AT haijiaowang broadbandimpedancemodelingandsubsupersynchronousoscillationanalysisofsteamturbinegenerator AT chunliu broadbandimpedancemodelingandsubsupersynchronousoscillationanalysisofsteamturbinegenerator AT guoqinghe broadbandimpedancemodelingandsubsupersynchronousoscillationanalysisofsteamturbinegenerator AT yanxiasun broadbandimpedancemodelingandsubsupersynchronousoscillationanalysisofsteamturbinegenerator AT panpanwang broadbandimpedancemodelingandsubsupersynchronousoscillationanalysisofsteamturbinegenerator |