Stability Analysis of LCC-HVDC with PV Station at the Receiving End
A new type of receiving-end power system with high proportion of new energy and HVDC has been formed in Hubei. In the scenario where the PV station is located near the HVDC receiving-end converter station, the sub-synchronous oscillation characteristics of power electronic devices and the interactio...
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State Grid Energy Research Institute
2024-03-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202305006 |
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| author | Yuqing ZHOU Dahu LI Wei YAO Qihang ZONG Hongyu ZHOU Jinyu WEN |
| author_facet | Yuqing ZHOU Dahu LI Wei YAO Qihang ZONG Hongyu ZHOU Jinyu WEN |
| author_sort | Yuqing ZHOU |
| collection | DOAJ |
| description | A new type of receiving-end power system with high proportion of new energy and HVDC has been formed in Hubei. In the scenario where the PV station is located near the HVDC receiving-end converter station, the sub-synchronous oscillation characteristics of power electronic devices and the interactions between the sub-systems are still to be analyzed. This paper used eigenvalue analysis method to explore the influence of the massive infeed of PV stations. Firstly, with a small signal analysis model of HVDC with PV station established, this paper has confirmed that the infeed of PV stations has a significant influence on the system stability. The interaction characteristics between subsystems were further observed through the dominant mode, and the feasible region of photovoltaic control parameters set, with a view to lower risks of sub-synchronous oscillation in the system. Finally, this paper defined the subsystem participation degree and measured the influence of operational parameters on the sub-synchronous interaction between the systems. It is concluded that the interaction between the PV plant and the DC system is stronger in the case of low grid strength and high light intensity at the receiving end. When designing a PV plant for grid connection, a conductor with a small impedance ratio should be selected to reduce the distance of the PV grid connection line. This conclusion can provide a theoretical basis for photovoltaic grid-connected design. |
| format | Article |
| id | doaj-art-28430a95bc2c4c7db3e0893ba71b6852 |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2024-03-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-28430a95bc2c4c7db3e0893ba71b68522025-08-20T02:47:34ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492024-03-0157317018210.11930/j.issn.1004-9649.202305006zgdl-57-2-zhouyuqingStability Analysis of LCC-HVDC with PV Station at the Receiving EndYuqing ZHOU0Dahu LI1Wei YAO2Qihang ZONG3Hongyu ZHOU4Jinyu WEN5State Key Laboratory of Advanced Electromagnetic Engineering and Technology (School of Electric and Electronic Engineering, Huazhong University of Science and Technology), Wuhan 430074, ChinaState Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaState Key Laboratory of Advanced Electromagnetic Engineering and Technology (School of Electric and Electronic Engineering, Huazhong University of Science and Technology), Wuhan 430074, ChinaState Key Laboratory of Advanced Electromagnetic Engineering and Technology (School of Electric and Electronic Engineering, Huazhong University of Science and Technology), Wuhan 430074, ChinaState Key Laboratory of Advanced Electromagnetic Engineering and Technology (School of Electric and Electronic Engineering, Huazhong University of Science and Technology), Wuhan 430074, ChinaState Key Laboratory of Advanced Electromagnetic Engineering and Technology (School of Electric and Electronic Engineering, Huazhong University of Science and Technology), Wuhan 430074, ChinaA new type of receiving-end power system with high proportion of new energy and HVDC has been formed in Hubei. In the scenario where the PV station is located near the HVDC receiving-end converter station, the sub-synchronous oscillation characteristics of power electronic devices and the interactions between the sub-systems are still to be analyzed. This paper used eigenvalue analysis method to explore the influence of the massive infeed of PV stations. Firstly, with a small signal analysis model of HVDC with PV station established, this paper has confirmed that the infeed of PV stations has a significant influence on the system stability. The interaction characteristics between subsystems were further observed through the dominant mode, and the feasible region of photovoltaic control parameters set, with a view to lower risks of sub-synchronous oscillation in the system. Finally, this paper defined the subsystem participation degree and measured the influence of operational parameters on the sub-synchronous interaction between the systems. It is concluded that the interaction between the PV plant and the DC system is stronger in the case of low grid strength and high light intensity at the receiving end. When designing a PV plant for grid connection, a conductor with a small impedance ratio should be selected to reduce the distance of the PV grid connection line. This conclusion can provide a theoretical basis for photovoltaic grid-connected design.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202305006lcc-hvdcpv stationsub-synchronous oscillationinteractioneigenvalue analysis |
| spellingShingle | Yuqing ZHOU Dahu LI Wei YAO Qihang ZONG Hongyu ZHOU Jinyu WEN Stability Analysis of LCC-HVDC with PV Station at the Receiving End Zhongguo dianli lcc-hvdc pv station sub-synchronous oscillation interaction eigenvalue analysis |
| title | Stability Analysis of LCC-HVDC with PV Station at the Receiving End |
| title_full | Stability Analysis of LCC-HVDC with PV Station at the Receiving End |
| title_fullStr | Stability Analysis of LCC-HVDC with PV Station at the Receiving End |
| title_full_unstemmed | Stability Analysis of LCC-HVDC with PV Station at the Receiving End |
| title_short | Stability Analysis of LCC-HVDC with PV Station at the Receiving End |
| title_sort | stability analysis of lcc hvdc with pv station at the receiving end |
| topic | lcc-hvdc pv station sub-synchronous oscillation interaction eigenvalue analysis |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202305006 |
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