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  1. Employees

Språkvelger

Norsk

Aravinda Perera

Aravinda Perera

PhD Candidate
Department of electric energy

aravinda.perera@ntnu.no
+4773559527
About Publications Media

About

CV

Aravinda Perera was born in 1984 in Colombo, Sri Lanka. He obtained the B.Sc. Engineering (Honours) Degree from the University of Moratuwa and M.Sc. Engineering Degree from Norwegian University of Science and Technology (NTNU) in 2009 and 2012 respectively, both in electrical engineering. 

Presently, he is reading a Ph.D. degree in NTNU in the field of power electronics. Prior to that, Aravinda has worked in the industry for nearly 10 years. From 2012 to 2018 he was employed by Siemens AS, Norway where he was involved in several R&D projects related to marine and subsea applications.

Aravinda has authored several patents and international conference articles. His research interests include wide-band-gap devices, electric drives, control, and estimation methods, and embedded control implementation methods. 

Ph.D. Research

Information

Project: Pilot Programme on Deep Sea Mining
Main supervisor: Professor Roy Nilsen
Co-supervisor: Associate Professor Dimosthenis Peftitsis
Research group: PESC
Ph.D. duration: May 2018 - August 2022
Teaching duties: ELK21, Digital control platform development for TET4120

 

Short Summary of Research

Click here for the long summary of the research and search my name in the pdf.

Background and Motivation

Extraction of seabed minerals is steadily becoming indispensable due to the exponential demand growth, geopolitics and the depletion of easily accessible terrestrial mineral reserves. The state-of-the-art seafloor mineral mining machines are high power, multi-motor remotely operated vehicles (ROV) as in Fig. 1. These ROVs are equipped with multiple submersible variable speed drives (VSD) for various purposes as such as dredging,  pumping and track drive. To achieve commercially viable and environmentally friendly mining on the seabed, reliable and efficient and highly power-dense electric drives are required.

Research Directions & Validation

6-phase electric machines with two isolated star-points offer increased hardware redundancy and several other performance improvements compared to the 3-phase counterparts. Interior permanent magnet synchronous machines (IPMSM) inherently offer superior efficiency, high torque density and controllability across a wide speed-range. The stall-torque and highly fluctuating load dynamics are some of the demanding characteristics the seabed drives are exposed to. Under this context, the research goals are set as below and both 3-phase and 6-phase IPMSM drives are investigated.

  • Machine parameter estimation using online and offline methods to improve the Maximum Torque Per Ampere (MTPA)-strategy based field-oriented control of the IPMSM drive.
  • Developing robust position estimation methods in the full operating range including around zero-speed, in the presence of varying temperatures.
  • The algorithms are first offline-simulated in the Matlab/Simulink environment [1],[2],[3],[4] and then programmed using C++ in the Xilinx Zynq System-on-Chip (SoC) based PicoZed industrial embedded control platform. The first stage of the validation is performed using the Embedded Real-Time Simulator (ERTS) [5],[6] (see Fig. 2) programmed in the FPGA section of the SoC. Subsequently, they are validated in the laboratory machine setup. Fig. 4 illustrates the concepts when validated using above three methods.

    Proof of Concept

    The developed concepts are applicable beyond seabed mineral mining, that demands high operational safety.

     

    Competencies

    • Electrical power engineering

    Publications

    • Chronological
    • By category
    • See all publications in Cristin

    2022

    • Perera, Aravinda; Nilsen, Roy. (2022) Online Identification of Six-Phase IPMSM Parameters Using Prediction-Error Sensitivities to Model Parameters. 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia).
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy; Haugan, Thomas Sagvold. (2022) Investigation of Open-Loop Predictor Implementation Methods for Online Parameter Estimation of IPMSM. PCIM Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management.
      Academic chapter/article/Conference paper

    2021

    • Perera, Aravinda; Nilsen, Roy. (2021) Gauss-Newton: A prediction-error-gradient based algorithm to track PMSM parameters online. 2020 IEEE International Conference on Power Electronics Drives and Energy Systems - PEDES.
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy; Haugan, Thomas Sagvold; Ljøkelsøy, Kjell. (2021) A Design Method of an Embedded Real-Time Simulator for Electric Drives using Low-Cost System-on-Chip Platform. PCIM Europe digital days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management.
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy. (2021) Full Speed Range Sensorless IPMSM Drive Enhanced with Online Parameter Identification. 2021 IEEE International Electric Machines & Drives Conference (IEMDC).
      Academic chapter/article/Conference paper

    2020

    • Perera, Aravinda; Nilsen, Roy. (2020) A Recursive Prediction Error Method with Effective Use of Gradient-Functions to Adapt PMSM-Parameters Online. Conference Record of the 2020 IEEE Industry Applications Society Annual Meeting - IAS.
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy. (2020) A Framework and an Open-Loop Method to Identify PMSM Parameters Online. The 23rd International Conference on Electrical Machines and Systems.
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy. (2020) A Sensorless Control Method for IPMSM with an Open-Loop Predictor for Online Parameter Identification. The 23rd International Conference on Electrical Machines and Systems.
      Academic chapter/article/Conference paper

    Part of book/report

    • Perera, Aravinda; Nilsen, Roy. (2022) Online Identification of Six-Phase IPMSM Parameters Using Prediction-Error Sensitivities to Model Parameters. 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia).
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy; Haugan, Thomas Sagvold. (2022) Investigation of Open-Loop Predictor Implementation Methods for Online Parameter Estimation of IPMSM. PCIM Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management.
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy. (2021) Gauss-Newton: A prediction-error-gradient based algorithm to track PMSM parameters online. 2020 IEEE International Conference on Power Electronics Drives and Energy Systems - PEDES.
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy; Haugan, Thomas Sagvold; Ljøkelsøy, Kjell. (2021) A Design Method of an Embedded Real-Time Simulator for Electric Drives using Low-Cost System-on-Chip Platform. PCIM Europe digital days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management.
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy. (2021) Full Speed Range Sensorless IPMSM Drive Enhanced with Online Parameter Identification. 2021 IEEE International Electric Machines & Drives Conference (IEMDC).
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy. (2020) A Recursive Prediction Error Method with Effective Use of Gradient-Functions to Adapt PMSM-Parameters Online. Conference Record of the 2020 IEEE Industry Applications Society Annual Meeting - IAS.
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy. (2020) A Framework and an Open-Loop Method to Identify PMSM Parameters Online. The 23rd International Conference on Electrical Machines and Systems.
      Academic chapter/article/Conference paper
    • Perera, Aravinda; Nilsen, Roy. (2020) A Sensorless Control Method for IPMSM with an Open-Loop Predictor for Online Parameter Identification. The 23rd International Conference on Electrical Machines and Systems.
      Academic chapter/article/Conference paper

    Media

    2018

    • Poster
      Perera, Aravinda; Nilsen, Roy. (2018) Electric motor drive system for highly reliable and productive mining machines for deep-sea. Underwater Mining Conference . International Marine Minerals Society (IMMS); Bergen. 2018-09-10 - 2018-09-14.
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