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Negative Sequence Current Control in Wind Power Plants With VSC-HVDC Connection
IEEE Transactions on Sustainable Energy, 2012 Large offshore wind power plants may have multi-MW wind turbine generators (WTG) equipped with full-scale converters (FSC) and voltage source converter (VSC) based high voltaage direct-current (HVDC) transmission for gridconnection. The power electronic converters in theWTG-FSC and the VSC-HVDC allow fast current control in the offshore grid.
Sanjay K Chaudhary +2 more
exaly +4 more sources
Impact of negative sequence current injection by wind power plants
2013 IEEE Power & Energy Society General Meeting, 2013 This paper presents an analysis of the impact from negative sequence current injection by wind power plants in power systems under steady-state and short-term unbalanced conditions, including faults. The separate positive and negative sequence current control capability of the grid-side converters of full scale converter type wind turbines may be ...
Sanjay K. Chaudhary +3 more
core +4 more sources
Negative Sequence Current Injection Based Active Islanding Detection Method
IEEE Transactions on Industry ApplicationsThis article presents a fast and accurate active islanding detection scheme for a grid-tied voltage source inverter (VSI). In the proposed scheme, the VSI generates a small negative sequence voltage to continuously inject a small negative sequence ...
Soham Chakraborty +2 more
exaly +3 more sources
Negative sequence current compensation for stator shorted turn detection in induction motors
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012 Negative sequence current analysis is useful for shorted turn detection in induction motors. It can produce fast and reliable monitoring results using a simple measurement technique. However, it is sensitive to disturbances such as sensor calibration, inherent machine asymmetry and supply voltage unbalances.
Syaiful Bakhri +2 more
openaire +2 more sources
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Negative-Sequence Current Injection for Fast Islanding Detection of a Distributed Resource Unit
IEEE Transactions on Power Electronics, 2008This paper presents an active islanding detection method for a distributed resource (DR) unit which is coupled to a utility grid through a three-phase voltage-sourced converter (VSC). The method is based on injecting a negative-sequence current through the VSC controller and detecting and quantifying the corresponding negative-sequence voltage at the ...
Houshang Karimi +2 more
exaly +3 more sources
Energies, 2022 Stator faults are the most critical faults in induction motors as they develop quickly hence requiring fast online diagnostic methods. A number of online condition monitoring techniques are proposed in the literature to respond to such faults, including ...
Syaiful Bakhri, Nesimi Ertugrul
exaly +2 more sources
A review of negative sequence current
2010 63rd Annual Conference for Protective Relay Engineers, 2010Sequence component analysis plays an essential role in analyzing power system faults and explaining some power system phenomena. It is very well known that negative sequence current could cause rotor damage, and that damage is highly detrimental to rotating machines such as motors and generators.
John Wang, Randy Hamilton
openaire +1 more source
Negative-Sequence Current Injection of Transmission Solar Farms
IEEE Transactions on Power Delivery, 2020Integrating solar generation brings about unique challenges in power system protection. Previous studies have found inverter-based resources featuring distinct fault responses compared to conventional generators. The reduction in fault current magnitude and lack of negative and zero sequence currents can fundamentally impact the way that the power ...
Gefei Kou +4 more
openaire +1 more source