Turn-to-Turn Fault Diagnosis on Three-Phase Power Transformer Using Hybrid Detection Algorithm
Applied Sciences, 2021 A power transformer (PT) in power generation or transmission is critical to maintaining electrical continuity. Fault detection on a PT is needed, especially of incipient faults, which are often caused by a turn-to-turn fault (TTF) before it develops into
Chien-Hsun Liu +2 more
doaj +1 more source
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 +1 more source
Practical calculation of asymmetric short circuit current of DFIG connected to distribution network [PDF]
E3S Web of Conferences, 2020 In view of the existing complex analytic calculations of DFIG short-circuit current are hardly applied in engineering projects, a practical calculation of asymmetric short-circuit current of DFIG is proposed.
Fu Pengwu +4 more
doaj +1 more source
Co-ordinated Control Strategy for Hybrid Wind Farms with PMSG and FSIG under Unbalanced Grid Voltage Condition [PDF]
, 2016 This paper investigates a control strategy for a wind farm with the direct-driven permanent-magnet synchronous generators (PMSG)-based wind turbines and the fixed speed induction generators (FSIG)-based wind turbines under unbalanced grid voltage ...
Chen, Zhe +5 more
core +2 more sources
Control of DFIG based wind generation systems under unbalanced network supply [PDF]
, 2007 This paper develops a dynamic model and control scheme for DFIG systems to improve the performance and stability under unbalanced grid conditions. A dynamic DFIG model containing the positive and negative sequence components is presented using stator ...
Wang, Yi, Xu, L.
core +1 more source
Characteristics of broadband lightning emissions associated with terrestrial gamma ray flashes [PDF]
, 2011 To characterize lightning processes that produce terrestrial gamma ray flashes (TGFs), we have analyzed broadband (
Cummer, Steven A. +5 more
core +2 more sources
Active Control Method for Torsional Vibration of DFIG Drive Chain Under Asymmetric Power Grid Fault
IEEE Access, 2020 When the asymmetric fault occurs in power grid, it will cause the oscillation of the electromagnetic torque of the doubly-fed induction generator(DFIG).
Shiji Tian +4 more
doaj +1 more source
A comparative study of methods for estimating virtual flux at the point of common coupling in grid connected voltage source converters with LCL filter [PDF]
, 2016 Grid connected Voltage Source Converters (VSCs) with LCL filters usually have voltage measurements at the filter capacitors, while it can be important to control the active or reactive power injection at the grid-side of the LCL filter, for instance at a
Candela García, José Ignacio +5 more
core +1 more source
IEEE Open Journal of the Industrial Electronics Society, 2021 The growing relevance of voltage source converters (VSCs), and the deep impact they have on the development and maintenance of the electrical grid, increase the necessity of further research on how to deal with nonideal grid conditions from the VSCs ...
Pablo Montero-Robina +3 more
doaj +1 more source
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 +3 more sources