The paper presents a new method for performing online stability analysis of power electronic systems. The method is based on impedance analysis, where the only information required are measurements taken at a single point. The proposed method injects current composed by several frequencies. The impedance is estimated at these frequencies, and the Vector Fitting method is used to estimate a continuous impedance model. The Nyquist Criterion is then applied to the fitted models of source and load subsystem impedance. The stability analysis is performed continuously with an update rate up to 10 Hz. The proposed method has been compared with the conventional frequency sweep method in an experimental setup.
机构:
Tongji Univ, Coll Transportat, State Key Lab High speed Maglev Transportat Techno, Shanghai, Peoples R ChinaTongji Univ, Coll Transportat, State Key Lab High speed Maglev Transportat Techno, Shanghai, Peoples R China
Zhao, Xiaoning
Sun, Yougang
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Tongji Univ, Coll Transportat, State Key Lab High speed Maglev Transportat Techno, Shanghai, Peoples R ChinaTongji Univ, Coll Transportat, State Key Lab High speed Maglev Transportat Techno, Shanghai, Peoples R China
Sun, Yougang
Li, Yanmin
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CRRC Qingdao Sifang Co Ltd, State Key Lab High speed Maglev Transportat Techno, Qingdao, Peoples R ChinaTongji Univ, Coll Transportat, State Key Lab High speed Maglev Transportat Techno, Shanghai, Peoples R China
Li, Yanmin
Jia, Ning
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Tongji Univ, Coll Elect & Informat Engn, Shanghai, Peoples R ChinaTongji Univ, Coll Transportat, State Key Lab High speed Maglev Transportat Techno, Shanghai, Peoples R China
Jia, Ning
Xu, Junqi
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Tongji Univ, Coll Transportat, State Key Lab High speed Maglev Transportat Techno, Shanghai, Peoples R ChinaTongji Univ, Coll Transportat, State Key Lab High speed Maglev Transportat Techno, Shanghai, Peoples R China
机构:
Harbin Inst Technol Shenzhen, Power Elect & Elect Drives Res Ctr, Shenzhen 518055, Peoples R China
Peng Cheng Lab, Shenzhen 518055, Peoples R ChinaHarbin Inst Technol Shenzhen, Power Elect & Elect Drives Res Ctr, Shenzhen 518055, Peoples R China
Fang, Mingzhu
Zhang, Donglai
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Harbin Inst Technol Shenzhen, Power Elect & Elect Drives Res Ctr, Shenzhen 518055, Peoples R China
Peng Cheng Lab, Shenzhen 518055, Peoples R ChinaHarbin Inst Technol Shenzhen, Power Elect & Elect Drives Res Ctr, Shenzhen 518055, Peoples R China
Zhang, Donglai
Qi, Xianbin
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Harbin Inst Technol Shenzhen, Power Elect & Elect Drives Res Ctr, Shenzhen 518055, Peoples R ChinaHarbin Inst Technol Shenzhen, Power Elect & Elect Drives Res Ctr, Shenzhen 518055, Peoples R China
机构:
Korea Inst Energy Res, Energy ICT Convergence Res Dept, 152 Gajeong Ro, Daejeon 34129, South KoreaKorea Inst Energy Res, Energy ICT Convergence Res Dept, 152 Gajeong Ro, Daejeon 34129, South Korea
Han, Soo-Bin
Oh, Hwanyeong
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Korea Inst Energy Res, Fuel Cell Lab, 152 Gajeong Ro, Daejeon 34129, South KoreaKorea Inst Energy Res, Energy ICT Convergence Res Dept, 152 Gajeong Ro, Daejeon 34129, South Korea
Oh, Hwanyeong
Lee, Won-Yong
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Korea Inst Energy Res, Fuel Cell Lab, 152 Gajeong Ro, Daejeon 34129, South KoreaKorea Inst Energy Res, Energy ICT Convergence Res Dept, 152 Gajeong Ro, Daejeon 34129, South Korea
Lee, Won-Yong
Won, Jinyeon
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Korea Inst Energy Res, Fuel Cell Lab, 152 Gajeong Ro, Daejeon 34129, South KoreaKorea Inst Energy Res, Energy ICT Convergence Res Dept, 152 Gajeong Ro, Daejeon 34129, South Korea
Won, Jinyeon
Chae, Suyong
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Korea Inst Energy Res, Energy ICT Convergence Res Dept, 152 Gajeong Ro, Daejeon 34129, South KoreaKorea Inst Energy Res, Energy ICT Convergence Res Dept, 152 Gajeong Ro, Daejeon 34129, South Korea
Chae, Suyong
Baek, Jongbok
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Korea Inst Energy Res, Energy ICT Convergence Res Dept, 152 Gajeong Ro, Daejeon 34129, South KoreaKorea Inst Energy Res, Energy ICT Convergence Res Dept, 152 Gajeong Ro, Daejeon 34129, South Korea