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Insulation Deterioration Detection by Zero-Sequence Current Analysis for Induction Motors
IEEJ Transactions on Industry Applications, 2011Insulation tests for the stator coil, which decides the motor life, are carried out once several years in power and industrial plant. In the case of high voltage (HV) motors, insulation failure may adversely affect plant operation. Hence, maintenance activities, including insulation tests, research on insulation deterioration, and online Partial ...
Hideki Iwanaga, Hiroshi Inujima
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A study of zero-sequence current induced in a cable system
IEEE Transactions on Power Delivery, 1991Large zero-sequence currents found in an actual crossbonded cable system led to a study of their causes and a solution to the problem. Measured values were compared to calculated results by the BPA-EMTP circuit analysis program. It was found that the zero-sequence currents were circulating between different circuits in the cable system and that they ...
H. Nakanishi +6 more
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A Novel Zero-Sequence-Current-Based Dual-Stator Biased-Flux Machine
IEEE Transactions on Energy Conversion, 2018Due to the unique flux distribution, biased flux machines (BFMs) could be driven by biased current to realize flexible flux weakening or strengthening control. In this paper, the electric machines with biased flux are investigated. The key techniques such as constructing biased flux in coils, exploring topologies, developing coil connection patterns ...
Tiantian Sheng, Shuangxia Niu
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IEEE Transactions on Industrial Electronics, 2017
A zero-sequence circulating current (ZSCC) is typically generated among the multiparallel converters that share the common dc link and ac side without isolated transformers under the space vector modulation (SVM), due to the injected third-order zero-sequence voltage (ZSV).
Rongwu Zhu +3 more
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A zero-sequence circulating current (ZSCC) is typically generated among the multiparallel converters that share the common dc link and ac side without isolated transformers under the space vector modulation (SVM), due to the injected third-order zero-sequence voltage (ZSV).
Rongwu Zhu +3 more
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Distribution Network Fault Location Algorithm Based on Zero-Sequence Current Phase
2012 Spring Congress on Engineering and Technology, 2012Based on the theory of the zero-sequence current phase's fault location method, this article proposes a location algorithm by comparing the relationship between the time and phase radian. The implementation of this method is to use GPS(Global Positioning System) second pulse for synchronous sampling by extracting zero-sequence current, then transmit ...
Yulin Qi, Zhengyang Wen, Huibin Jia
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Diagnosis of bearing fault in induction motor by zero sequence current
2017 International Conference on Innovative Research In Electrical Sciences (IICIRES), 2017Fault detections are essential for unexpected failures of the electrical motors. Early detection and faults diagnosis leads to effective operations. This paper deals a diagnosis of faults in three phase induction motor by means of zero-sequence stator current spectrum. The simulation and experimental setup are designed under bearing faults.
P. Kripakaran, B. Rami Reddy
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Predictive Zero-Sequence Current Control of Multiple Paralleled Power Converters
IEEE Transactions on Industrial Electronics, 2022Yu Li, Han He, Zhen Li, Zhenbin Zhang
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A Novel Consequent-Pole Contra-Rotating Machine with Zero-Sequence Current Excitation
2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers), 2023Mingyuan Jiang, Shuangxia Niu
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A phase selection element for zero sequence current differential protection
2014 International Conference on Power System Technology, 2014null Wang Xingguo +2 more
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Zero-Sequence Current Density in the Earth
Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1959openaire +1 more source