Results 1 to 10 of about 266,614 (289)
Attenuation of Zero Sequence Voltage Using a Conventional Three-Wire Dynamic Voltage Restorer [PDF]
Energies, 2021 Voltage sags/swells and harmonics are recurring problems in electric energy distribution systems. In order to solve these issues, several dynamic voltage restorer (DVR) topologies, such as the conventional three-wire DVR, have been proposed in the ...
Rafael Neto +5 more
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Efficient Zero-Sequence Impedance Measurement in Autotransformers Using Low-Voltage Excitation
Applied Sciences, 2023 In accordance with the IEEE standard, the zero-sequence impedance test of transformers necessitates an open or short circuit test on the high-voltage side winding.
Min Zhang +6 more
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THE DEVELOPMENT OF THE THEORY OF INSTANTANEOUS POWER OF THREE-PHASE NETWORK IN TERMS OF NETWORK CENTRISM [PDF]
Electrical engineering & Electromechanics, 2017 Purpose. Information technologies allow multidimensional analysis of information about the state of the power system in a single information space in terms of providing network-centric approach to control and use of unmanned aerial vehicles as tools for ...
Ye. I. Sokol +5 more
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Research on dead-time compensation of common DC bus OW-PMSM based on 120°decoupling modulation
Energy Reports, 2022 To suppress the switching dead-band in the Open-End Winding Permanent Magnet Synchronous Machine with Common DC bus (OW-PMSM-CDCB) drive system, the dual-inverter switch dead-band generates zero-sequence voltage and current during 120°decoupling ...
Shirui Xie +5 more
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IEEE Access, 2021 The ±270 V bipolar dc distribution has become an attractive power supply scheme in more electric aircraft (MEA). In this paper, a dc voltage balancing strategy based on zero vector redistribution (ZVR) is proposed for a three-phase coupled ...
Yajun Zhao, Wenxin Huang, Feifei Bu
doaj +1 more source
Design of a mine-used low-voltage leakage protection device
Gong-kuang zidonghua, 2020 In view of low reliability of leakage protection device of coal mine low-voltage power grid based on line selection principle of zero-sequence power direction, a hardware and software design scheme of mine-used low-voltage leakage protection device was ...
ZHENG Qingle +3 more
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AC Fault Ride-Through Strategy of a Transformerless Soft Normally Open Point
Applied Sciences, 2022 This paper focuses on the soft normally open point (SNOP) which has no transformers and connects to the 10 kV distribution network through the arc suppression coil grounding mode.
Feng Xu +3 more
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CES Transactions on Electrical Machines and Systems, 2022 Dual three-phase permanent-magnet synchronous machines (DTP-PMSM) connected with a single neutral point provide a loop for zero-sequence current (ZSC). This paper proposes a novel space vector pulse width modulation (SVPWM) strategy to suppress the ZSC ...
Zongwang Li +4 more
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Flux Weakening Controller Design for Series-Winding Three-Phase PMSM Drive Systems
World Electric Vehicle Journal, 2023 Series-winding three-phase PMSMs have a higher bus voltage utilization than the conventional three-phase PMSMs with star connection. This topology is suitable for applications with a limited bus voltage. However, the zero-sequence current controller will
Senyi Liu +3 more
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Energies, 2021 Series-winding topology (SWT) could improve the DC-link voltage utilization, as open-winding topology does. Meanwhile, it can greatly reduce the number of power devices. Firstly, for the half-bridge power modules (HBPMs)-based inverter, an N-phase series-
Zhiping Dong +3 more
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