Results 11 to 20 of about 868,690 (284)
Earth Fault Location Using Negative Sequence Currents [PDF]
Energies, 2019 In this paper, a new method for locating single-phase earth faults on non-effectively earthed medium voltage distribution networks is proposed. The method requires only current measurements and is based on the analysis of the negative sequence components
Amir Farughian +2 more
doaj +8 more sources
A Robust Vector Current Controller with Negative-Sequence Current Capability for Grid-Connected Inverters [PDF]
Energies, 2021 This paper presents a vector current controller (in the synchronous reference, or the dq, frame) with negative-sequence current injection capability for three-phase grid-connected converters.
Houshang Karimi +3 more
doaj +8 more sources
Broken Rotor Bar Fault Detection for Inverter-Fed Induction Motor with Negative-Sequence Current Analysis [PDF]
SensorsThis study examines the effectiveness of negative-sequence current analysis in identifying broken rotor bars for inverter-fed induction motors under different load and speed conditions. To improve diagnostic reliability, inverter-induced harmonics in the
Sarvarbek Ruzimov +3 more
doaj +3 more sources
A Negative-sequence Current Injection Method to Mitigate Voltage Imbalances in Microgrids [PDF]
Eletrônica de Potência, 2011 This paper proposes a control strategy to reduce the voltage imbalances by injection of a proper negative-sequence current into the microgrid. This task can be done by each inverter connected to the microgrid in a shared way.
Gustavo M. S. Azevedo +4 more
doaj +4 more sources
Positive-Sequence Voltage Control, Full Negative-Sequence Cancellation, and Current Limitation for Static Compensators [PDF]
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021 This paper presents a control scheme in the stationary reference frame for Static Synchronous Compensators that provides three features: 1) regulation of the positive sequence voltage to the nominal value, 2) full cancellation of the negative sequence voltage, and 3) peak limitation of the injected currents.
Camacho Santiago, Antonio +4 more
openaire +4 more sources
Revista EIA, 2019 This paper studied the use of a new stator current feature for detection of winding and cage bars faults in an induction motor, and presents the experimental validation of a detection and identification scheme using Support Vector Machines (SVM). This validation was performed in a test bed using 2 HP, 4 pole motors in which shorted winding and broken ...
Castillo, Silvia Oviedo +1 more
openaire +4 more sources
Energy Reports, 2023 During the fault of the wind power collection line of the MMC-HVDC system, the amplitude of the fault current may be limited due to the control of the converter, which leads to the severe limitation of traditional protection.
Peng Sun +5 more
doaj +2 more sources
IEEE Access, 2020 When the single-phase reclosing of the high-voltage circuit, there will be tremendous negative sequence current generation. The connection of inverter-type new energy sources may increase the negative sequence current of the power system.
Zhenxing Li +4 more
doaj +3 more sources
VSC control strategy for HVDC compensating negative sequence and decaying DC components
Energy Reports, 2023 This paper proposes a voltage source converter (VSC) control strategy for the high voltage direct current (HVDC) transmission systems compensating the negative sequence and decaying DC (DDC) components. The mathematical model of the grid fault current is
Wu Yanwei +4 more
doaj +2 more sources
Weak-Grid Tolerant Positive- and Negative-Sequence Current Control of Voltage-Source Converters [PDF]
2021 IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe), 2021 Peer ...
Kukkola, Jarno +4 more
openaire +4 more sources