双边不对称工况下无网侧变换器型可变频率变压器的控制策略

doi:10.11930/j.issn.1004-9649.202102082

中国电力 ›› 2021, Vol. 54 ›› Issue (12): 29-37.DOI: 10.11930/j.issn.1004-9649.202102082

• 国家“十三五”智能电网重大专项专栏：（九）柔性交流输配电技术 • 上一篇下一篇

双边不对称工况下无网侧变换器型可变频率变压器的控制策略

卢嘉豪¹, 陈思哲²

1. 广东电网有限责任公司佛山供电局, 广东佛山 528000;
2. 广东工业大学自动化学院, 广东广州 510006

收稿日期:2021-02-23 修回日期:2021-09-23 出版日期:2021-12-05 发布日期:2021-12-16
作者简介:卢嘉豪(1993-),男,通信作者,硕士,从事可变频率变压器的建模与控制研究,E-mail:jiahao_282@163.com
基金资助:
国家自然科学基金资助项目(基于可变频率变压器的变速变频近海风电系统控制研究，51307025)。

Control Strategy for Non Grid Side Converter-based Variable Frequency Transformer under Dual-Side Asymmetrical Conditions

LU Jiahao¹, CHEN Sizhe²

1. Foshan Power Supply Bureau of Guangdong Power Grid Co., Ltd., Foshan 528000, China;
2. School of Automation, Guangdong University of Technology, Guangzhou 510006, China

Received:2021-02-23 Revised:2021-09-23 Online:2021-12-05 Published:2021-12-16
Supported by:
This work is supported by National Natural Science Foundation of China (Control Research of Variable Speed Variable Frequency Offshore Wind Energy Conversion System Based on Variable Frequency Transformer, No.51307025).

摘要/Abstract

摘要： 针对可变频率变压器转子电压不可控的问题，提出一种无网侧变换器的可变频率变压器（NGSC-VFT）拓扑结构。基于该拓扑结构，建立双边对称和不对称工况下NGSC-VFT的完整数学模型，并深入研究NGSC-VFT的控制策略。定子侧串联补偿变换器以维持直流母线电压、独立控制无功功率和消除定子负序电压为目标，转子侧串联补偿变换器以消除转子负序电压为目标。仿真结果表明：采用所提NGSC-VFT拓扑结构，无需网侧变换器即可维持直流母线电压，有功功率动态跟踪效果更快，直流电容电压更低，无功功率可独立控制，双边不对称工况下转矩和功率的波动得到进一步抑制。新拓扑提高了VFT系统的不对称故障穿越能力。

关键词: 双边不对称工况, 无网侧变换器, 可变频率变压器, 数学模型, 控制策略

Abstract: In view of the problem of uncontrollable rotor voltage of variable frequency transformer, a non grid side converter-based variable frequency transformer (NGSC-VFT) configuration is proposed. Based on this configuration, an integrated mathematical model of NGSC-VFT under dual-side symmetrical and asymmetrical grid conditions is established, and the control strategy of NGSC-VFT is further studied. The stator side series compensation converte (SCC) aims to maintain the DC-link voltage, independently control reactive power, and eliminate the stator’s negative sequence voltage, while the objective of the rotor side SCC is to eliminate the rotor’s negative sequence voltage. The simulation results show that, with the proposed NGSC-VFT configuration, the DC-link voltage can be regulated without GSC with faster dynamic tracking effect of the active power and lower DC capacitor voltage, and the reactive power can be independently controlled. In addition, the fluctuations of torque and power under dual-side asymmetrical conditions can be further suppressed. The novel configuration improves the asymmetrical fault ride-through capability of VFT system.

Key words: dual-side asymmetrical conditions, non grid side converter, variable frequency transformer, mathematical model, control strategy

卢嘉豪, 陈思哲. 双边不对称工况下无网侧变换器型可变频率变压器的控制策略[J]. 中国电力, 2021, 54(12): 29-37.

LU Jiahao, CHEN Sizhe. Control Strategy for Non Grid Side Converter-based Variable Frequency Transformer under Dual-Side Asymmetrical Conditions[J]. Electric Power, 2021, 54(12): 29-37.

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参考文献

[1] 余晓丹, 徐宪东, 陈硕翼, 等. 综合能源系统与能源互联网简述[J]. 电工技术学报, 2016, 31(1): 1–13
YU Xiaodan, XU Xiandong, CHEN Shuoyi, et al. A brief review to integrated energy system and energy Internet[J]. Transactions of China Electrotechnical Society, 2016, 31(1): 1–13
[2] 刘振亚. 全球能源互联网跨国跨洲互联研究及展望[J]. 中国电机工程学报, 2016, 36(19): 5103–5110,5391
LIU Zhenya. Research of global clean energy resource and power grid interconnection[J]. Proceedings of the CSEE, 2016, 36(19): 5103–5110,5391
[3] 刘振亚. 全球能源互联网标准体系研究: 2018年[M]. 北京: 中国质检出版社, 2018.
[4] 鲁刚. 中国能源互联网发展基本特征[J]. 中国电力, 2018, 51(8): 17–23
LU Gang. Basic characteristics of China's energy Internet development[J]. Electric Power, 2018, 51(8): 17–23
[5] 陈启超, 李晖, 吴文传, 等. 基于VSC-HVDC异步互联系统联网转孤岛运行稳定控制策略[J]. 电力自动化设备, 2020, 40(4): 32–39
CHEN Qichao, LI Hui, WU Wenchuan, et al. Stability control strategy for conversion from grid-tied to island operation of asynchronous interconnected power grids based on VSC-HVDC[J]. Electric Power Automation Equipment, 2020, 40(4): 32–39
[6] 陈鹏远, 黎灿兵, 周斌, 等. 异步互联电网柔性直流输电紧急功率支援与动态区域控制偏差协调控制策略[J]. 电工技术学报, 2019, 34(14): 3025–3034
CHEN Pengyuan, LI Canbing, ZHOU Bin, et al. VSC-HVDC emergency power support and dynamic area control error coordinated control strategy for improving the stability of asynchronous interconnected power grids[J]. Transactions of China Electrotechnical Society, 2019, 34(14): 3025–3034
[7] 姜涛, 贾宏杰, 姜懿郎, 等. 跨区互联电网热稳定安全域边界近似方法[J]. 电工技术学报, 2016, 31(8): 134–146
JIANG Tao, JIA Hongjie, JIANG Yilang, et al. Approximating method of wide area thermal security region boundary in bulk power system[J]. Transactions of China Electrotechnical Society, 2016, 31(8): 134–146
[8] MERKHOUF A, DOYON P, UPADHYAY S. Variable frequency transformer - concept and electromagnetic design evaluation[J]. IEEE Transactions on Energy Conversion, 2008, 23(4): 989–996.
[9] 卢嘉豪. 可变频率变压器的电网故障穿越控制技术研究[D]. 广州: 广东工业大学, 2019.
LU Jiahao. Research on grid-fault ride-through control strategy of variable frequency transformer[D]. Guangzhou: Guangdong University of Technology, 2019.
[10] 倪林, 袁荣湘, 张菁. 可变频变压器在风电并网中的应用[J]. 电气应用, 2012, 31(7): 58–61
[11] 张敏, 凌云, 唐黄正. 变频变压器在风电并网过程中的频率调整研究[J]. 湖南科技大学学报(自然科学版), 2017, 32(1): 18–23
ZHANG Min, LING Yun, TANG Huangzheng. Research on frequency adjustment of variable frequency transformer in grid-connecled wind farms[J]. Journal of Hunan University of Science & Technology (Natural Science Edition), 2017, 32(1): 18–23
[12] 周攀, 伋玉聪, 戴朝波, 等. 变频变压器在半波长变频调谐的应用[J]. 电力系统及其自动化学报, 2019, 31(1): 71–76
ZHOU Pan, JI Yucong, DAI Chaobo, et al. Application of variable-frequency transformer to half-wavelength variable-frequency tuning[J]. Proceedings of the CSU-EPSA, 2019, 31(1): 71–76
[13] BAKHSH F I, KHATOD D K. Application of variable frequency transformer (VFT) for grid interconnection of PMSG based wind energy generation system[J]. Sustainable Energy Technologies and Assessments, 2014, 8: 172–180.
[14] BAKHSH F I, KHATOD D K. A new synchronous generator based wind energy conversion system feeding an isolated load through variable frequency transformer[J]. Renewable Energy, 2016, 86: 106–116.
[15] WANG L, CHEN L Y. Reduction of power fluctuations of a large-scale grid-connected offshore wind farm using a variable frequency transformer[J]. IEEE Transactions on Sustainable Energy, 2011, 2(3): 226–234.
[16] WANG L, JAN S R, LI C N, et al. Analysis of an integrated offshore wind farm and seashore wave farm fed to a power grid through a variable frequency transformer[C]//2011 IEEE Power and Energy Society General Meeting. Detroit, MI, USA. IEEE, 2011: 1–7.
[17] 方泽钦, 杨俊华, 陈思哲, 等. 基于可变频变压器的双馈风电系统低电压穿越控制[J]. 电机与控制应用, 2016, 43(10): 89–95
FANG Zeqin, YANG Junhua, CHEN Sizhe, et al. Low voltage ride through control of doubly-fed induction generator based on variable frequency transformer[J]. Electric Machines & Control Application, 2016, 43(10): 89–95
[18] 陈葛松, 周孝信, 宋瑞华. 基于变频变压器的电力系统低频振荡自适应阻尼控制器设计[J]. 中国电机工程学报, 2011, 31(16): 1–7
CHEN Gesong, ZHOU Xiaoxin, SONG Ruihua. Design of self-adaptive damping controller to low frequency power oscillation in interconnected power systems based on variable frequency transformer[J]. Proceedings of the CSEE, 2011, 31(16): 1–7
[19] PIWKO, LARSEN. Variable frequency transformer - FACTS technology for asynchronous power transfer[C]//2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition. Dallas, TX, USA. IEEE, 2006: 1426–1428.
[20] PRATICO E R, WEGNER C, LARSEN E V, et al. VFT operational overview - the Laredo project[C]//2007 IEEE Power Engineering Society General Meeting. Tampa, FL, USA. IEEE, 2007: 1–6.
[21] PRATICO E R, WEGNER C, MARKEN P E, et al. First multi-channel VFT application - the Linden project[C]//IEEE PES T&D 2010. New Orleans, LA, USA. IEEE, 2010: 1–7.
[22] AMBATI B B, KANJIYA P, KHADKIKAR V, et al. A hierarchical control strategy with fault ride-through capability for variable frequency transformer[J]. IEEE Transactions on Energy Conversion, 2015, 30(1): 132–141.
[23] AMBATI B B, KHADKIKAR V. Variable frequency transformer configuration for decoupled active-reactive powers transfer control[J]. IEEE Transactions on Energy Conversion, 2016, 31(3): 906–914.
[24] CHEN S Z, LU J H, ZHANG G D, et al. Immunizing variable frequency transformer from dual-side asymmetrical grid faults via a single-converter-based novel control strategy[J]. IEEE Transactions on Power Delivery, 2020, 35(3): 1330–1338.
[25] CHEN S Z, CHEUNG N C, ZHANG Y, et al. Improved grid synchronization control of doubly fed induction generator under unbalanced grid voltage[J]. IEEE Transactions on Energy Conversion, 2011, 26(3): 799–810.

双边不对称工况下无网侧变换器型可变频率变压器的控制策略

Control Strategy for Non Grid Side Converter-based Variable Frequency Transformer under Dual-Side Asymmetrical Conditions

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双边不对称工况下无网侧变换器型可变频率变压器的控制策略

Control Strategy for Non Grid Side Converter-based Variable Frequency Transformer under Dual-Side Asymmetrical Conditions

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