Topologies and modulation methods in leakage current suppression for PV grid-tied inverters

Research Article
Open access

Topologies and modulation methods in leakage current suppression for PV grid-tied inverters

Siyao Chen 1*
  • 1 Xi'an Jiaotong University    
  • *corresponding author csy1925819220@stu.xjtu.edu.cn
Published on 25 September 2023 | https://doi.org/10.54254/2755-2721/10/20230175
ACE Vol.10
ISSN (Print): 2755-273X
ISSN (Online): 2755-2721
ISBN (Print): 978-1-83558-009-7
ISBN (Online): 978-1-83558-010-3

Abstract

Photovoltaic (PV) inverters are widely discussed as solar energy became commonly used as a renewable energy source. Transformerless grid-tied inverters are often chose for their low cost and low energy loss. Since the existence of stray capacitance between PV cells and conducting surface causes a changing common-mode voltage (CMV) which would arise leakage current and thus pollute the output current quality to the grid and endanger human safety, novel topologies and modulation strategies are proposed to save the problem for transformerless inverters. In this paper, different methods to suppress the leakage current will be analysed. The theoretical analysis of CMV and leakage current generation by single-phase inverter is presented. Based on the basic principle of leakage current suppression topologies proposed to eliminate the leakage current are introduced. The effects of some well-known modulation methods on CMV controlling have been compared, and novel methods dealing with three-phase harmonic management are presented.

Keywords:

grid-tied inverters, common mode voltage, leakage current.

Chen,S. (2023). Topologies and modulation methods in leakage current suppression for PV grid-tied inverters. Applied and Computational Engineering,10,203-209.
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References

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[2]. Guo X and Jia X 2016 IEEE Trans. Ind. Electron., 63 7823-32.

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[12]. Shahabadini M and Iman-Eini H 2021 IEEE Trans. Power Electron. 36 13754–13762.

[13]. Hosseinkhani V and Sarvi M 2022 Protection and Control of Modern Power Systems 7 19.

[14]. Zhong H, Zhang Z, Chen J and Xing X 2023 Transaction of China Electrotechnical Society 38 220-33.

[15]. Shen J, Schroder S, Rosner R, et al. 2011 IEEE Trans. Power Electron. 26 3084-95.

[16]. Lee J S, Lee K B 2014 IEEE Trans. Power Electro. 29 1720-32.

[17]. Wang F, Li Z, Fu H and Teng Y 2017 Transaction of China Electrotechnical Society 32 128-38.

[18]. Guo X, Wei B, Zhu T, Lu Z, Tan L, Sun X and Zhang C 2018 IEEE Trans. Power Electro. 33 2127–35.

[19]. Qin C, Zhang C, Chen A, Xing X and Zhang G 2018 IEEE Trans. Ind. Electron. 65 8340–50.

[20]. Zhou L et al 2018 IEEE Trans. Ind. Electron. 65 7036-7048.

[21]. Kouchaki A and Nymand M 2018 IEEE Trans. Power Electron. 33 3012-22.

[22]. Liu B, Wei Q, Zou C and Duan S 2017 IEEE Trans. Ind. Informat. 14 691-702.

[23]. Li X, Chen A, Qin C and Zhang G 2018 IEEE Trans. Ind. Electron. 66 4457–67.

Cite this article

Chen,S. (2023). Topologies and modulation methods in leakage current suppression for PV grid-tied inverters. Applied and Computational Engineering,10,203-209.

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The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.

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About volume

Volume title: Proceedings of the 2023 International Conference on Mechatronics and Smart Systems

ISBN：978-1-83558-009-7(Print) / 978-1-83558-010-3(Online)
Editor：Alan Wang, Seyed Ghaffar
Conference website: https://2023.confmss.org/
Conference date: 24 June 2023
Series: Applied and Computational Engineering
Volume number: Vol.10
ISSN：2755-2721(Print) / 2755-273X(Online)

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References

[1]. Zhu X, Wang H, Zhang W, Wang H, Deng X and Yue X 2020 CES Trans. Electrical Machines and Systems 4 329-38.

[2]. Guo X and Jia X 2016 IEEE Trans. Ind. Electron., 63 7823-32.

[3]. Gu P, Zheng J, Miu H, Yang J and Yang Y 2017 Electro. Electric 11 1-5.

[4]. Guo X, Zhou J, He R, Jia X and C A. Rojas 2015 IEEE Trans. Ind. Electron. 65 676-686.

[5]. Chen J, Shen Y, Shen J, et al. 2021 Transaction of China Electrotechnical Society 36 665-675.

[6]. Lopez O, Teodorescu R, Freijedo F and Doval-Gandoy J 2007 IEEE Power Engineering Society General Meeting, 1–5.

[7]. Kerekes T Teodorescu R Rodriguez P Vazquez G and Aldabas E 2011 IEEE Trans. Ind. Electron 58 1.

[8]. Liu B, Huang Q, He D, Song S, Xu C and Lin X 2018 Electric Power Automation Equipment 38 133-8.

[9]. Syed A, Sandipamu T K and Suan F T K 2018 IET Power Electro. 11 246-52.

[10]. Vosoughi N, Hosseini S H and Sabahi M 2020 IEEE Trans. Energy Conv. 35 106–18.

[11]. Samizadeh M, Yang X, Karami B, Chen W, Blaabjerg F and Kamranian M 2020 IEEE Access 8 76951–65.

[12]. Shahabadini M and Iman-Eini H 2021 IEEE Trans. Power Electron. 36 13754–13762.

[13]. Hosseinkhani V and Sarvi M 2022 Protection and Control of Modern Power Systems 7 19.

[14]. Zhong H, Zhang Z, Chen J and Xing X 2023 Transaction of China Electrotechnical Society 38 220-33.

[15]. Shen J, Schroder S, Rosner R, et al. 2011 IEEE Trans. Power Electron. 26 3084-95.

[16]. Lee J S, Lee K B 2014 IEEE Trans. Power Electro. 29 1720-32.

[17]. Wang F, Li Z, Fu H and Teng Y 2017 Transaction of China Electrotechnical Society 32 128-38.

[18]. Guo X, Wei B, Zhu T, Lu Z, Tan L, Sun X and Zhang C 2018 IEEE Trans. Power Electro. 33 2127–35.

[19]. Qin C, Zhang C, Chen A, Xing X and Zhang G 2018 IEEE Trans. Ind. Electron. 65 8340–50.

[20]. Zhou L et al 2018 IEEE Trans. Ind. Electron. 65 7036-7048.

[21]. Kouchaki A and Nymand M 2018 IEEE Trans. Power Electron. 33 3012-22.

[22]. Liu B, Wei Q, Zou C and Duan S 2017 IEEE Trans. Ind. Informat. 14 691-702.

[23]. Li X, Chen A, Qin C and Zhang G 2018 IEEE Trans. Ind. Electron. 66 4457–67.

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