Anantaram Varatharajan
- Phone: 617-621-7522
- Email:
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Position:
Research / Technical Staff
Visiting Research Scientist -
Education:
Ph.D., Politecnico di Torino, 2021 -
Research Areas:
External Links:
Anantaram's Quick Links
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Biography
Anantaram's research focuses on the control of electrical machines and drives, with broader goals on efficiency and reliability. His Ph.D. work dealt with developing position sensorless control techniques for synchronous motors and self-commissioning methods for machine identification. He is a recipient of Best Ph.D. Thesis Award from IEEE Industrial Electronics Society, Italy Chapter, and Best Student Paper Award from IEEE Workshop on Electrical Machine Design, Control and Diagnosis, 2021.
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Recent News & Events
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NEWS MERL researchers presented four papers and organized a special session at The 14th IEEE International Electric Machines and Drives Conference Date: May 15, 2023 - May 18, 2023
Where: San Francisco, CA
MERL Contacts: Dehong Liu; Yusuke Sakamoto; Anantaram Varatharajan; Bingnan Wang
Research Areas: Applied Physics, Control, Electric Systems, Machine Learning, Optimization, Signal ProcessingBrief- MERL researchers Yusuke Sakamoto, Anantaram Varatharajan, and
Bingnan Wang presented four papers at IEMDC 2023 held May 15-18 in San Francisco, CA. The topics of the four oral presentations range from electric machine design optimization, to fault detection and sensorless control. Bingnan Wang organized a special session at the conference entitled: Learning-based Electric Machine Design and Optimization. Bingnan Wang and Yusuke Sakamoto together chaired the special session, as well as a session on: Condition Monitoring, Fault Diagnosis and Prognosis.
The 14th IEEE International Electric Machines and Drives Conference: IEMDC 2023, is one of the major conferences in the area of electric machines and drives. The conference was established in 1997 and has taken place every two years thereafter.
- MERL researchers Yusuke Sakamoto, Anantaram Varatharajan, and
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TALK [MERL Seminar Series 2022] Prof. Gianmario Pellegrino presents talk titled Design, Identification and Simulation of PM Synchronous Machines for Traction Date & Time: Friday, October 14, 2022; 11:00 AM
Speaker: Gianmario Pellegrino, Politecnico di Tornio, Italy
MERL Host: Anantaram Varatharajan
Research Areas: Electric Systems, Electronic and Photonic Devices, Multi-Physical Modeling, OptimizationAbstract
This seminar presents a comprehensive design and simulation procedure for Permanent Magnet Synchronous Machines (PMSMs) for traction application. The design of heavily saturated traction PMSMs is a multidisciplinary engineering challenge that CAD software suites struggle to grasp, whereas design equations are way too approximated for the purpose. This tutorial will present the design toolchain of SyR-e, where magnetic and structural design equations are fast-FEA corrected for an insightful initial design, later FEA calibrated with free or commercial FEA tools. One e-motor will be designed from zero referring to the specs and size of the Tesla Model 3 rear-axle e-motor. The circuital model of one motor with inverter and discrete-time control will be automatically generated, in Simulink and PLECS, with accessible torque control source code, for simulation of healthy and faulty conditions, ready for real-time implementation (e.g. HiL).
See All News & Events for Anantaram -
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MERL Publications
- , "Broken-bar Fault Detection by Injecting a Frequency Modulated Continuous Wave Signal", IEEE International Electric Machines and Drives Conference (IEMDC), May 2023.BibTeX TR2023-039 PDF
- @inproceedings{Liu2023may,
- author = {Liu, Dehong and Varatharajan, Anantaram and Goldsmith, Abraham and Kong, Chuizheng and Sigatapu, Laxman and Wang, Yebin},
- title = {Broken-bar Fault Detection by Injecting a Frequency Modulated Continuous Wave Signal},
- booktitle = {IEEE International Electric Machines and Drives Conference (IEMDC)},
- year = 2023,
- month = may,
- url = {https://www.merl.com/publications/TR2023-039}
- }
- , "Flying Start of Sensorless Synchronous Machines with Reactive Power Injection", IEEE International Electric Machines and Drives Conference (IEMDC), May 2023.BibTeX TR2023-037 PDF
- @inproceedings{Anantaram2023may,
- author = {Anantaram, Varatharajan and Goldsmith, Abraham and Wang, Yebin},
- title = {Flying Start of Sensorless Synchronous Machines with Reactive Power Injection},
- booktitle = {IEEE International Electric Machines and Drives Conference (IEMDC)},
- year = 2023,
- month = may,
- url = {https://www.merl.com/publications/TR2023-037}
- }
- , "Sensorless Control of Synchronous Machines with DC-Link Voltage Immunity and Adaptation", IEEE Power Electronics, Drives and Energy Systems, DOI: 10.1109/PEDES56012.2022.10080212, December 2022.BibTeX TR2022-165 PDF
- @inproceedings{Anantaram2022dec,
- author = {Anantaram, Varatharajan and Wang, Yebin},
- title = {Sensorless Control of Synchronous Machines with DC-Link Voltage Immunity and Adaptation},
- booktitle = {IEEE Power Electronics, Drives and Energy Systems},
- year = 2022,
- month = dec,
- doi = {10.1109/PEDES56012.2022.10080212},
- url = {https://www.merl.com/publications/TR2022-165}
- }
- , "Broken-bar Fault Detection by Injecting a Frequency Modulated Continuous Wave Signal", IEEE International Electric Machines and Drives Conference (IEMDC), May 2023.
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Other Publications
- , "Direct Flux Vector Control of Synchronous Motor Drives: Accurate Decoupled Control With Online Adaptive Maximum Torque Per Ampere and Maximum Torque Per Volts Evaluation", IEEE Transactions on Industrial Electronics, Vol. 69, No. 2, pp. 1235-1243, 2022.BibTeX
- @Article{9363639,
- author = {Varatharajan, Anantaram and Pellegrino, Gianmario and Armando, Eric},
- title = {Direct Flux Vector Control of Synchronous Motor Drives: Accurate Decoupled Control With Online Adaptive Maximum Torque Per Ampere and Maximum Torque Per Volts Evaluation},
- journal = {IEEE Transactions on Industrial Electronics},
- year = 2022,
- volume = 69,
- number = 2,
- pages = {1235--1243}
- }
- , "LUT-Less Sensorless Control of Synchronous Reluctance Machines Using the Locus of Incremental Saliency Ratio Tracking (LIST)", IEEE Transactions on Industrial Electronics, Vol. 69, No. 7, pp. 6530-6539, 2022.BibTeX
- @Article{9507334,
- author = {Varatharajan, Anantaram and Pellegrino, Gianmario and Mariani, Guilherme Bueno and Voyer, Nicolas and Satake, Akira},
- title = {LUT-Less Sensorless Control of Synchronous Reluctance Machines Using the Locus of Incremental Saliency Ratio Tracking (LIST)},
- journal = {IEEE Transactions on Industrial Electronics},
- year = 2022,
- volume = 69,
- number = 7,
- pages = {6530--6539}
- }
- , "Signal-Injection Sensorless Control of Synchronous Reluctance Machines for Overload Operation", IEEE Transactions on Power Electronics, Vol. 37, No. 5, pp. 5874-5883, 2022.BibTeX
- @Article{9626601,
- author = {Varatharajan, Anantaram and Pellegrino, Gianmario and Armando, Eric},
- title = {Signal-Injection Sensorless Control of Synchronous Reluctance Machines for Overload Operation},
- journal = {IEEE Transactions on Power Electronics},
- year = 2022,
- volume = 37,
- number = 5,
- pages = {5874--5883}
- }
- , "Kinetic-Rotor Self-Commissioning of Synchronous Machines for Magnetic Model Identification with Online Adaptation", IEEE Transactions on Industry Applications, pp. 1-1, 2022.BibTeX
- @Article{9712411,
- author = {Varatharajan, Anantaram and Pellegrino, Gianmario and Armando, Eric},
- title = {Kinetic-Rotor Self-Commissioning of Synchronous Machines for Magnetic Model Identification with Online Adaptation},
- journal = {IEEE Transactions on Industry Applications},
- year = 2022,
- pages = {1--1}
- }
- , "Sensorless Synchronous Reluctance Motor Drives: Auxiliary Flux-Based Position Observer", IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 9, No. 4, pp. 4330-4339, 2021.BibTeX
- @Article{9178310,
- author = {Varatharajan, Anantaram and Pellegrino, Gianmario and Armando, Eric},
- title = {Sensorless Synchronous Reluctance Motor Drives: Auxiliary Flux-Based Position Observer},
- journal = {IEEE Journal of Emerging and Selected Topics in Power Electronics},
- year = 2021,
- volume = 9,
- number = 4,
- pages = {4330--4339}
- }
- , "Sensorless Control of Synchronous Motor Drives: Accurate Torque Estimation and Control Under Parameter Errors", IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 9, No. 5, pp. 5367-5376, 2021.BibTeX
- @Article{9257471,
- author = {Varatharajan, Anantaram and Pellegrino, Gianmario and Armando, Eric and Hinkkanen, Marko},
- title = {Sensorless Control of Synchronous Motor Drives: Accurate Torque Estimation and Control Under Parameter Errors},
- journal = {IEEE Journal of Emerging and Selected Topics in Power Electronics},
- year = 2021,
- volume = 9,
- number = 5,
- pages = {5367--5376}
- }
- , "Sensorless Synchronous Motor Drives: A Review of Flux Observer-Based Position Estimation Schemes Using the Projection Vector Framework", IEEE Transactions on Power Electronics, Vol. 36, No. 7, pp. 8171-8180, 2021.BibTeX
- @Article{9312430,
- author = {Varatharajan, Anantaram and Pellegrino, Gianmario and Armando, Eric and Hinkkanen, Marko},
- title = {Sensorless Synchronous Motor Drives: A Review of Flux Observer-Based Position Estimation Schemes Using the Projection Vector Framework},
- journal = {IEEE Transactions on Power Electronics},
- year = 2021,
- volume = 36,
- number = 7,
- pages = {8171--8180}
- }
- , "Direct Flux Vector Control of Synchronous Motor Drives: A Small-Signal Model for Optimal Reference Generation", IEEE Transactions on Power Electronics, Vol. 36, No. 9, pp. 10526-10535, 2021.BibTeX
- @Article{9382895,
- author = {Varatharajan, Anantaram and Pellegrino, Gianmario and Armando, Eric},
- title = {Direct Flux Vector Control of Synchronous Motor Drives: A Small-Signal Model for Optimal Reference Generation},
- journal = {IEEE Transactions on Power Electronics},
- year = 2021,
- volume = 36,
- number = 9,
- pages = {10526--10535}
- }
- , "Sensorless Synchronous Reluctance Motor Drives: A General Adaptive Projection Vector Approach for Position Estimation", IEEE Transactions on Industry Applications, Vol. 56, No. 2, pp. 1495-1504, 2020.BibTeX
- @Article{8941242,
- author = {Varatharajan, Anantaram and Pellegrino, Gianmario},
- title = {Sensorless Synchronous Reluctance Motor Drives: A General Adaptive Projection Vector Approach for Position Estimation},
- journal = {IEEE Transactions on Industry Applications},
- year = 2020,
- volume = 56,
- number = 2,
- pages = {1495--1504}
- }
- , "Sensorless Synchronous Reluctance Motor Drives: A Full-Speed Scheme Using Finite-Control-Set MPC in a Projection Vector Framework", IEEE Transactions on Industry Applications, Vol. 56, No. 4, pp. 3809-3818, 2020.BibTeX
- @Article{9079671,
- author = {Varatharajan, Anantaram and Pescetto, Paolo and Pellegrino, Gianmario},
- title = {Sensorless Synchronous Reluctance Motor Drives: A Full-Speed Scheme Using Finite-Control-Set MPC in a Projection Vector Framework},
- journal = {IEEE Transactions on Industry Applications},
- year = 2020,
- volume = 56,
- number = 4,
- pages = {3809--3818}
- }
- , "Sensorless Synchronous Reluctance Motor Drives: A Projection Vector Approach for Stator Resistance Immunity and Parameter Adaptation", IEEE Transactions on Industry Applications, Vol. 56, No. 5, pp. 5003-5012, 2020.BibTeX
- @Article{9141387,
- author = {Varatharajan, Anantaram and Pellegrino, Gianmario},
- title = {Sensorless Synchronous Reluctance Motor Drives: A Projection Vector Approach for Stator Resistance Immunity and Parameter Adaptation},
- journal = {IEEE Transactions on Industry Applications},
- year = 2020,
- volume = 56,
- number = 5,
- pages = {5003--5012}
- }
- , "Direct Flux Vector Control of Synchronous Motor Drives: Accurate Decoupled Control With Online Adaptive Maximum Torque Per Ampere and Maximum Torque Per Volts Evaluation", IEEE Transactions on Industrial Electronics, Vol. 69, No. 2, pp. 1235-1243, 2022.