Results 211 to 220 of about 183,908 (257)
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An Analytical Simplified Three-Level SVPWM With Unified Zero-Sequence Component Injection
IEEE Transactions on Power Delivery, 2022Qingzeng Yan, Rende Zhao, Rende Zhao
exaly +2 more sources
IEEE Transactions on Power Electronics, 2015
This paper focuses on the development of an online method for diagnosing high-resistance connection (HRC) in delta-connected permanent magnet synchronous machine (PMSM) using zero-sequence current component (ZSCC). The development of this method begins with the establishment of the mathematic model of the PMSM with the HRC.
Shichuan Ding +2 more
exaly +2 more sources
This paper focuses on the development of an online method for diagnosing high-resistance connection (HRC) in delta-connected permanent magnet synchronous machine (PMSM) using zero-sequence current component (ZSCC). The development of this method begins with the establishment of the mathematic model of the PMSM with the HRC.
Shichuan Ding +2 more
exaly +2 more sources
Torque Improvement of Dual Three-Phase Permanent Magnet Machine Using Zero Sequence Components
IEEE Transactions on Magnetics, 2017This paper investigates the interaction of the zero sequence component into both permanent magnet (PM) shape and phase current to improve the output torque in dual three-phase surface-mounted PM (SPM) machines. The optimal zero sequence components are analytically derived and validated by finite element (FE) analyses.
Z Q Zhu, Kai Wang, H Y Sun
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2024 International Russian Automation Conference (RusAutoCon)
Nadezhda Malysheva +2 more
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Nadezhda Malysheva +2 more
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Impact of zero sequence component on voltage-source converters
Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579), 2003Presently, the preferred circuit of PWM (pulse width modulation) converters has the open-wye 3-phase connection, in which the zero sequence does not exist. Single-line-to-ground fault studies have shown that the grounded-wye connection is better from protection and security consideration.
null Lianxiang Tang, null Boon-Teck Ooi
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Induction machine diagnostics using zero sequence components
Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005., 2005Induction machine diagnostics using zero sequence components is presented in this paper. Electrical faults cause asymmetries in the phase impedances, producing a zero sequence voltage in wye-connected machines and a zero sequence current in delta-connected machines.
F. Briz +3 more
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The control and analysis of zero sequence components in DVR system
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194), 2002The magnitudes and phases of the compensating voltages in a dynamic voltage restorer (DVR) system depend on the voltage sag in the phases affected by the fault and on the influence of the zero sequence components. If the delta connection of the transformer is used, the zero sequence components do not appear on the load side. But nowadays, wye connected
null Il-Yop Chung +3 more
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A novel method for preventing mal-operation of the zero-sequence directional component
12th IET International Conference on AC and DC Power Transmission (ACDC 2016), 2016Zero-sequence directional components of the healthy line would incorrectly discriminate the fault direction, causing mal-operation of the pilot zero-sequence directional protection, due to the influence of mutual inductance between lines under weak current and strong magnetic situations.
H.Y. Xu +4 more
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