Maximum Power Transfer Control Strategy for Variable Frequency Transformer
Variable frequency transformer (VFT) is a new type of flexible AC transmission system equipment to achieve the interconnections of asynchronous grids, whose transmittable power capacity is an important performance indicator. In view of the problem that the traditional control strategy does not consi...
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| Format: | Article |
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State Grid Energy Research Institute
2021-12-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202103149 |
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| author | Jiahao LU Ruiyuan HONG Sizhe CHEN |
| author_facet | Jiahao LU Ruiyuan HONG Sizhe CHEN |
| author_sort | Jiahao LU |
| collection | DOAJ |
| description | Variable frequency transformer (VFT) is a new type of flexible AC transmission system equipment to achieve the interconnections of asynchronous grids, whose transmittable power capacity is an important performance indicator. In view of the problem that the traditional control strategy does not consider the rotor winding’s overloading caused by the increase of slip rate, a study is conducted on the maximum stator active power under different slip rates and stator reactive power, and the operation characteristics of a VFT system based on series converter are investigated. The detailed working conditions are analyzed for different slip rates. The mathematical relationship between the optimal stator reactive power reference and the slip rate, and the rated apparent power and the actual absorbed reactive power is derived, and the maximum power transfer (MPT) control strategy for VFT is proposed. A hardware-in-loop (HIL) experimental platform is established to verify the effectiveness of the proposed MPT control strategy. The experimental results show that the proposed MPT control strategy can effectively increase the transferable power capacity of VFT and realize the maximum power transfer of VFT. |
| format | Article |
| id | doaj-art-c8efe973de6344c18da3a727d4901570 |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2021-12-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-c8efe973de6344c18da3a727d49015702025-08-20T02:52:31ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492021-12-015412202810.11930/j.issn.1004-9649.202103149zgdl-54-12-lujiahao1Maximum Power Transfer Control Strategy for Variable Frequency TransformerJiahao LU0Ruiyuan HONG1Sizhe CHEN2Foshan Power Supply Bureau of Guangdong Power Grid Co., Ltd., Foshan 528000, ChinaFoshan Power Supply Bureau of Guangdong Power Grid Co., Ltd., Foshan 528000, ChinaSchool of Automation, Guangdong University of Technology, Guangzhou 510006, ChinaVariable frequency transformer (VFT) is a new type of flexible AC transmission system equipment to achieve the interconnections of asynchronous grids, whose transmittable power capacity is an important performance indicator. In view of the problem that the traditional control strategy does not consider the rotor winding’s overloading caused by the increase of slip rate, a study is conducted on the maximum stator active power under different slip rates and stator reactive power, and the operation characteristics of a VFT system based on series converter are investigated. The detailed working conditions are analyzed for different slip rates. The mathematical relationship between the optimal stator reactive power reference and the slip rate, and the rated apparent power and the actual absorbed reactive power is derived, and the maximum power transfer (MPT) control strategy for VFT is proposed. A hardware-in-loop (HIL) experimental platform is established to verify the effectiveness of the proposed MPT control strategy. The experimental results show that the proposed MPT control strategy can effectively increase the transferable power capacity of VFT and realize the maximum power transfer of VFT.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202103149variable frequency transformermaximum power transferoptimal stator reactive powerflexible ac transmission |
| spellingShingle | Jiahao LU Ruiyuan HONG Sizhe CHEN Maximum Power Transfer Control Strategy for Variable Frequency Transformer Zhongguo dianli variable frequency transformer maximum power transfer optimal stator reactive power flexible ac transmission |
| title | Maximum Power Transfer Control Strategy for Variable Frequency Transformer |
| title_full | Maximum Power Transfer Control Strategy for Variable Frequency Transformer |
| title_fullStr | Maximum Power Transfer Control Strategy for Variable Frequency Transformer |
| title_full_unstemmed | Maximum Power Transfer Control Strategy for Variable Frequency Transformer |
| title_short | Maximum Power Transfer Control Strategy for Variable Frequency Transformer |
| title_sort | maximum power transfer control strategy for variable frequency transformer |
| topic | variable frequency transformer maximum power transfer optimal stator reactive power flexible ac transmission |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202103149 |
| work_keys_str_mv | AT jiahaolu maximumpowertransfercontrolstrategyforvariablefrequencytransformer AT ruiyuanhong maximumpowertransfercontrolstrategyforvariablefrequencytransformer AT sizhechen maximumpowertransfercontrolstrategyforvariablefrequencytransformer |