Ph.D. in Ingegneria Elettrica, Elettronica E Delle Comunicazioni , 33rd cycle (2017-2020)
Ph.D. obtained in 2021
Dissertation:
Generalized Sensorless and Advanced Control of Synchronous Reluctance Machines (Abstract)
Tutors:
Gianmario Pellegrino Vittorio Curri
Research presentation:
Video presentationProfile
Research topic
Control and Commissioning of Sensorless Synchronous Motor Drives
Research interests
Biography
- Anantaram Varatharajan obtained his bachelors in Electrical and Electronics Engineering from BITS Pilani University, India in 2013.
- He was a research intern in TU Dresden, Germany from 2013-2014, focussing on the study of harmonic emission of electric vehicles.
- In 2016, he graduated in M.Sc in 'Sustainable Transportation and Electrical Power Systems' from Erasmus Mundus master course organized by consortium comprising of University of Oviedo, University of Nottingham, Sapienza University of Rome and Politecnico di Coimbra.
- Since 2017, he has been a doctorate student at Politecnico di Torino with Prof. Gianmario Pellegrino. His research interests include control and commissioning of synchronous motor drives.
Awards and Honors
- Sensorless (or self-sensing, or encoder-less) control refers to closed-loop controlling the Synchronous Reluctance motor without using a rotor position encoder for synchronization of the control reference frame to the rotor phase angle and/or for evaluation of the speed of revolution. A novel technique is envisaged to tackle the adverse influence of stator resistance variations and inverter voltage errors on stability of position observer. The proposed scheme, Adaptive Projection vector for Position error estimation (APP), is inherently immune to voltage estimate errors on the maximum torque per amps (MTPA) trajectory. (2020)
Publications
Works published during the Ph.D. View all publications in Porto@Iris
- Varatharajan, Anantaram (2021)
Generalized Sensorless and Advanced Control of Synchronous Reluctance Machines. relatore: PELLEGRINO, GIANMARIO; CURRI, VITTORIO; , 33. XXXIII Ciclo, P.: 216
Doctoral Thesis - Varatharajan, Anantaram; Pellegrino, Gianmario; Armando, Eric (2021)
Direct Flux Vector Control of Synchronous Motor Drives: A Small-Signal Model for Optimal Reference Generation. In: IEEE TRANSACTIONS ON POWER ELECTRONICS, pp. 1-10. ISSN 0885-8993
Contributo su Rivista - Varatharajan, Anantaram; Brunelli, Dario; Ferrari, Simone; Pescetto, Paolo; Pellegrino, ... (2021)
syreDrive: Automated Sensorless Control Code Generation for Synchronous Reluctance Motor Drives. In: 2021 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), Moderna, Italy, 8-9 April 2021, pp. 192-197. ISBN: 978-1-7281-7615-4
Contributo in Atti di Convegno (Proceeding) - Varatharajan, Anantaram; Pellegrino, Gianmario; Armando, Eric; Hinkkanen, Marko (2021)
Sensorless Synchronous Motor Drives: A Review of Flux Observer-based Position Estimation Schemes using the Projection Vector Framework. In: IEEE TRANSACTIONS ON POWER ELECTRONICS, vol. IEEE Transactions on Power Electronics, pp. 1-10. ISSN 0885-8993
Contributo su Rivista - Varatharajan, Anantaram; Pellegrino, Gianmario; Armando, Eric; Hinkkanen, Marko (2020)
Sensorless Control of Synchronous Motor Drives: Accurate Torque Estimation and Control under Parameter Errors. In: IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, pp. 1-10. ISSN 2168-6777
Contributo su Rivista - Varatharajan, Anantaram; Pescetto, Paolo; Pellegrino, Gianmario (2020)
Sensorless Synchronous Reluctance Motor Drives: A Full-Speed Scheme using Finite-Control-Set MPC in a Projection Vector Framework. In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, vol. 56, pp. 3809-3818. ISSN 0093-9994
Contributo su Rivista - Varatharajan, Anantaram; Pellegrino, Gianmario; Armando, Eric (2020)
Self-Commissioning of Synchronous Reluctance Motor Drives: Magnetic Model Identification with Online Adaptation. In: 2020 IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, USA, USA, 11-15 Oct. 2020, pp. 5353-5360. ISBN: 978-1-7281-5826-6
Contributo in Atti di Convegno (Proceeding) - Varatharajan, Anantaram; Pellegrino, Gianmario (2020)
Sensorless Synchronous Reluctance Motor Drives: A Projection Vector Approach for Stator Resistance Immunity and Parameter Adaptation. In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, vol. 56, pp. 5003-5012. ISSN 0093-9994
Contributo su Rivista - Varatharajan, Anantaram; Pellegrino, Gianmario; Armando, Eric (2020)
Sensorless Synchronous Reluctance Motor Drives: Auxiliary Flux based Position Observer. In: IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, pp. 1-10. ISSN 2168-6777
Contributo su Rivista - Varatharajan, Anantaram; Pellegrino, Gianmario (2019)
Sensorless Synchronous Reluctance Motor Drives: A Sensitivity Analysis Framework and Design to Achieve Stator Resistance Immunity. In: 2019 IEEE 10th International Symposium on Sensorless Control for Electrical Drives (SLED), Torino, 6/9/19 - 9/9/19, pp. 1-6. ISBN: 978-1-7281-0766-0
Contributo in Atti di Convegno (Proceeding) - Varatharajan, Anantaram; Pescetto, Paolo; Pellegrino, Gianmario (2019)
Sensorless Self-Commissioning of Synchronous Reluctance Machine with Rotor Self-Locking Mechanism. In: IEEE Energy Conversion Congress and Exposition (ECCE 2019), Baltimore, pp. 812-817
Contributo in Atti di Convegno (Proceeding) - Varatharajan, A; Pellegrino, Gianmario (2019)
Sensorless Synchronous Reluctance Motor Drives: A General Adaptive Projection Vector Approach for Position Estimation. In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, pp. 1-1. ISSN 0093-9994
Contributo su Rivista - Varatharajan, Anantaram; Pellegrino, Gianmario (2019)
Sensorless Control of Synchronous Reluctance Motor Drives: Improved Modeling and Analysis Beyond Active Flux. In: 2019 IEEE International Electric Machines & Drives Conference (IEMDC), San Diego, USA, 12-15 May 2019, pp. 419-426. ISBN: 978-1-5386-9350-6
Contributo in Atti di Convegno (Proceeding) - Varatharajan, Anantaram; Pescetto, Paolo; Pellegrino, Gianmario (2018)
Injectionless Sensorless Control of Synchronous Reluctance Machine for Zero to Low Speeds Region. In: International Symposium on Sensorless Control for Electrical Drives (SLED), Helsinki, Finland, September 13-14
Contributo in Atti di Convegno (Proceeding) - Savio, Paolo; Varatharajan, Anantaram; Vizzaccaro, Erasmo; Abdelfattah, Sherif; Franco, ... (2018)
Control of power electronics through a photonic bus: Feasibility and prospects. In: JOURNAL OF SENSOR AND ACTUATOR NETWORKS, vol. 7. ISSN 2224-2708
Contributo su Rivista - Varatharajan, Anantaram; Savio, Paolo; Vizzaccaro, Erasmo; Abrate, Silvio; Pellegrino, ... (2018)
Remotized Control of Power Electronic Devices Exploiting a Plastic Optical Fiber Photonic Bus. In: 20th International Conference on Transparent Optical Networks, ICTON 2018, Bucharest (RO), 2018, pp. 1-4. ISSN 2162-7339. ISBN: 9781538666043
Contributo in Atti di Convegno (Proceeding)
Society and Enterprise
Patents and other intellectual properties
- A method and a device for controlling a three-phase motor. international Patent
Inventors: Gianmario Pellegrino Paolo Pescetto - Method for Spatial Harmonic Flux-Map and Torque-Map Identification Without a Torque Transducer. national and international Patent
Inventors: Simone Ferrari Gianmario Pellegrino Paolo Pescetto - Online MTPA Tracking for Synchronous Machines. international Patent
Inventors: Gianmario Pellegrino - Fast High-Frequency Current Injection for Machine Controllers. international Patent
Inventors: Gianmario Pellegrino - Locus of Incremental Saliency Tracking (LIST). international Patent
Inventors: Gianmario Pellegrino - Adaptive Projection vector for Position error estimation (APP) in sensorless synchronous reluctance motor drives for immunity from stator resistance variation. national and international Patent
Inventors: Gianmario Pellegrino