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Chris Gerada
Researcher at University of Nottingham
Publications - 634
Citations - 10494
Chris Gerada is an academic researcher from University of Nottingham. The author has contributed to research in topics: Rotor (electric) & Stator. The author has an hindex of 37, co-authored 555 publications receiving 7161 citations. Previous affiliations of Chris Gerada include The University of Nottingham Ningbo China & Beihang University.
Papers
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Journal ArticleDOI
Rotor Position Tracking Control for Low Speed Operation of Direct-Drive PMSM Servo System
TL;DR: Considering the derivative relationship between the rotor position and speed, a speed command is converted to a real-time rotor position trajectory, and then a position-current two-loop control with the RPTC controller is proposed based on the internal model method to smoothly track the rotor positions.
Journal ArticleDOI
Internal Current Return Path for Ground Leakage Current Mitigation in Current Source Inverters
Emilio Lorenzani,Giovanni Migliazza,Fabio Immovilli,Chris Gerada,He Zhang,Giampaolo Buticchi +5 more
TL;DR: A simple solution for ground leakage current mitigation applicable to transformerless three-phase current source inverter (CSI) is applied to grid-connected converters for string photovoltaic applications and shows good agreement and confirm that the proposed solution is able to strongly reduce the ground leakageCurrent.
Journal ArticleDOI
Non-linear circuit based model of permanent magnet synchronous machine under inter-turn fault: a simple approach based on healthy machine data
Lamia Belguerras,J. Arellano-Padilla,Puvaneswaran Arumugam,Tahar Hamiti,Smail Mezani,Chris Gerada +5 more
TL;DR: In this paper, a fast dynamic mathematical model was proposed to evaluate the performances of saturated permanent magnet synchronous machines (PMSM) under stator winding's inter-turn fault, which can be incorporated in a global simulation environment of power electronic of electrical device since the computation time is very short.
Journal ArticleDOI
Post-Fault Operation of Bearingless Multisector SPM Machines by Space Vector Control
TL;DR: A novel post fault control algorithm based on the space vector method is presented and applied to a bearingless multisector permanent magnet synchronous machine with a triple three-phase winding and shows a remarkable improvement in the performance when the novel post-fault algorithm is employed.
Proceedings ArticleDOI
Analytical modeling of a vertically distributed winding configuration for Fault Tolerant Permanent Magnet Machines to suppress inter-turn short circuit current limiting
TL;DR: In this paper, an analytical model to evaluate the inter-turn short-circuit current in a Fault Tolerant Permanent Magnet Synchronous Machine (FT-PMSM) for different winding configurations is presented.