Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations
The rapidly growing grid-connected capacity of new energy units may cause low-frequency oscillations in the power system, and thus new energy units based on wind power and photovoltaic (PV) should have the ability to restrain low-frequency oscillations. This paper takes the system including wind far...
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State Grid Energy Research Institute
2022-03-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202011043 |
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| author | Shixian SHENG Xin ZHOU Delin WANG Jiasi LIAO Jingqi LI Jitao KANG |
| author_facet | Shixian SHENG Xin ZHOU Delin WANG Jiasi LIAO Jingqi LI Jitao KANG |
| author_sort | Shixian SHENG |
| collection | DOAJ |
| description | The rapidly growing grid-connected capacity of new energy units may cause low-frequency oscillations in the power system, and thus new energy units based on wind power and photovoltaic (PV) should have the ability to restrain low-frequency oscillations. This paper takes the system including wind farm and PV power stations as the research object and clarifies the principle of virtual synchronous generator (VSG) control and additional damping control for doubly-fed induction generator (DFIG) to increase system damping. With the change of active power at the grid-connection point of DFIG as input, additional damping controllers are designed on the active power control loop of the VSG wind farm and the controller of PV power stations respectively. Then, the cooperative control strategies are designed according to the operating areas of DFIG. When DFIG is operating in the constant speed zone, considering the slow response speed of the pitch control and the unsatisfactory effect of suppressing oscillations, DFIG no longer participates in the additional damping control, and the PV power station outputs additional power to compensate the shortcomings of DFIG. Finally, a simulation system including wind farm and PV power stations is established, and the effectiveness and correctness of the cooperative control method are verified through Prony analysis and time-domain simulation verification. |
| format | Article |
| id | doaj-art-cc8a391e280d4187a99f732d32268c47 |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2022-03-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-cc8a391e280d4187a99f732d32268c472025-08-20T02:52:24ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492022-03-0155317718610.11930/j.issn.1004-9649.202011043zgdl-54-12-shengshixianAdditional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power StationsShixian SHENG0Xin ZHOU1Delin WANG2Jiasi LIAO3Jingqi LI4Jitao KANG5School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaElectric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaSchool of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaThe rapidly growing grid-connected capacity of new energy units may cause low-frequency oscillations in the power system, and thus new energy units based on wind power and photovoltaic (PV) should have the ability to restrain low-frequency oscillations. This paper takes the system including wind farm and PV power stations as the research object and clarifies the principle of virtual synchronous generator (VSG) control and additional damping control for doubly-fed induction generator (DFIG) to increase system damping. With the change of active power at the grid-connection point of DFIG as input, additional damping controllers are designed on the active power control loop of the VSG wind farm and the controller of PV power stations respectively. Then, the cooperative control strategies are designed according to the operating areas of DFIG. When DFIG is operating in the constant speed zone, considering the slow response speed of the pitch control and the unsatisfactory effect of suppressing oscillations, DFIG no longer participates in the additional damping control, and the PV power station outputs additional power to compensate the shortcomings of DFIG. Finally, a simulation system including wind farm and PV power stations is established, and the effectiveness and correctness of the cooperative control method are verified through Prony analysis and time-domain simulation verification.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202011043virtual synchronous wind farmpv power stationsadditional damping controllow-frequency oscillation |
| spellingShingle | Shixian SHENG Xin ZHOU Delin WANG Jiasi LIAO Jingqi LI Jitao KANG Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations Zhongguo dianli virtual synchronous wind farm pv power stations additional damping control low-frequency oscillation |
| title | Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations |
| title_full | Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations |
| title_fullStr | Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations |
| title_full_unstemmed | Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations |
| title_short | Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations |
| title_sort | additional damping cooperative control method of virtual synchronous wind farm and photovoltaic power stations |
| topic | virtual synchronous wind farm pv power stations additional damping control low-frequency oscillation |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202011043 |
| work_keys_str_mv | AT shixiansheng additionaldampingcooperativecontrolmethodofvirtualsynchronouswindfarmandphotovoltaicpowerstations AT xinzhou additionaldampingcooperativecontrolmethodofvirtualsynchronouswindfarmandphotovoltaicpowerstations AT delinwang additionaldampingcooperativecontrolmethodofvirtualsynchronouswindfarmandphotovoltaicpowerstations AT jiasiliao additionaldampingcooperativecontrolmethodofvirtualsynchronouswindfarmandphotovoltaicpowerstations AT jingqili additionaldampingcooperativecontrolmethodofvirtualsynchronouswindfarmandphotovoltaicpowerstations AT jitaokang additionaldampingcooperativecontrolmethodofvirtualsynchronouswindfarmandphotovoltaicpowerstations |