Roland Kobla Tagayi

Roland kobla tagayi

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location of Roland Kobla TagayiHwaseong, Gyeonggi, South Korea
Phone number of Roland Kobla Tagayi+91 xxxx xxxxx
Followers of Roland Kobla Tagayi1000 followers
  • Timeline

    Jul 2016 - Jul 2016

    Internship Trainee

    Ghana Grid Company Limited
    Sept 2017 - Aug 2018

    Teaching Assistant

    UNIVERSITY OF ENERGY AND NATURAL RESOURCES
    Sept 2018 - Jul 2019

    Internship Trainee (Metering and Technical Services section)

    Power Distribution Services Ghana Ltd
    Sept 2020 - Aug 2022

    Graduate Research Assistant

    Chungnam National University
    Current Company
    Nov 2022 - now

    Assistant Research Software Engineer

    COENSYS Co., Ltd.
  • About me

    Assistant Research Engineer at COENSYS Co., Ltd.

  • Education

    • Mfantsipim school

      2010 - 2013
      General science
    • Chungnam national university

      2020 - 2022
      Master of science - msc electrical engineering
    • University of energy and natural resources

      2013 - 2017
      Bachelor of science - bsc electrical and electronic engineering
    • Daegu university

      2019 - 2020
      Korean language programme korean language
  • Experience

    • Ghana grid company limited

      Jul 2016 - Jul 2016
      Internship trainee

      • Assisted in the inspection of switchyards/substations.• Conducted Tower Footing Resistance test on transmission towers using the earth resistance tester.• Acquired knowledge on Protection and Control using relays and protective devices.• Performed electrical maintenance activities and laying of electrical cables.

    • University of energy and natural resources

      Sept 2017 - Aug 2018
      Teaching assistant

      • Conducted discussion sections, tutorials, and projects.• Evaluated and graded assignments, quizzes, examinations, and recorded grades.• Developed teaching materials such as supplementary notes and answer keys.• Motivated students in a creative direction towards problem-solving.• Assisted in teaching the following courses: Classical and Digital Control Systems, Electrical Circuits, Electrical Machines (Transformers), and Special Electrical Machines.Research projects performed/ students’ work reviewed:• Closed transition star-delta starter of an induction motor using timers.• Microcontroller-Based Fault Detection and Location System for Transmission lines.• A self-regulating level control mechanism for submersible fluid pumps using PLC. Show less

    • Power distribution services ghana ltd

      Sept 2018 - Jul 2019
      Internship trainee (metering and technical services section)

      • Engaged in the automatic meter reading (AMR) standardization project.• Intervened in monitoring and rectifying faults on 3-phase Special Load Tariff (SLT) meters.• Performed installation and replacement of meters, and switching of power supply.• Assisted in the programming of meters for setup before installation.

    • Chungnam national university

      Sept 2020 - Aug 2022
      Graduate research assistant

      Energy Storage Conversion Lab. (ESCL), Department of Electrical Engineering• Developed a battery energy storage system (BESS) control model to improve power quality and reduce peak loads, considering BESS state-of-charge (SoC) and time-of-day (ToD) operation of customers’ load.• Co-developed an optimal sizing approach for lithium-ion battery systems, incorporating the battery’s nonlinearity features via Peukert's law and analyzing load conditions employing EVs and PV generators.• Implemented the flower pollination algorithm (FPA) to optimize maximum power output in PV systems, considering complex partial shading conditions, real-world field irradiance data, and complex PV configurations.• Proposed an improved elastic net (IEN) regularization with an adaptive elastic net penalty to estimate the distribution of relaxation times (DRT) to interpret and analyze lithium-ion battery electrochemical impedance spectroscopy (EIS) data of different SoCs and temperatures.• Co-introduced a novel method for achieving an enhanced battery SoC estimate through denoising the discharge-charge voltage noisy signal resulting from unexpected noise sensing in the BMS. Show less

    • Coensys co., ltd.

      Nov 2022 - now
      Assistant research software engineer

      COENSYS Co., Ltd. is a battery pack manufacturer with advanced BMS technology and battery module & pack design and production know-how.• Develop battery management system (BMS) algorithms: SoC estimation, heating/thermal management control,battery cell balancing, charging/discharging cycle operation control techniques.• Analyze experimental data from battery testing and field performance to identify patterns, trends, and areas forimprovement.• Develop software solutions to optimize battery usage, charging, and discharging processes for efficiency andlongevity.• Collaborate with hardware engineers to integrate various software components with battery managementhardware.• Diagnose and resolve software-related issues in battery systems and provide timely solutions to ensure reliableand continuous operation.Projects performed/ongoing• 150Ah, 12.8V Lithium iron phosphate battery (LFP) battery pack system developed for an electric snowplow.• 45Ah, 345.6V LFP battery pack system developed for an autonoumous driving vehicle; BMS (MBMS/SBMS)-EVCC-EVSE DC fast charging (CCS1).• Power distribution unit (PDU) developed for a 1-ton EV road sweeper, 40kW/80kW Hyundai hydrogen-powered tractor EV, and KIA tractor EV. Show less

  • Licenses & Certifications

    • Python data structures

      Coursera
      Oct 2021
      View certificate certificate
    • Introduction to battery-management systems

      Coursera
      Oct 2021
      View certificate certificate
    • Awareness of safety

      Korea research institute of bioscience and biotechnology (kribb)
      Jul 2021
      View certificate certificate
    • Current transformer saturation and sizing|webinar

      Etap - operation technology, inc.
      Jul 2021
    • Research lab accidents i

      Korea research institute of bioscience and biotechnology (kribb)
      Jul 2021
      View certificate certificate
    • Programming for everybody (getting started with python)

      Coursera
      Aug 2021
      View certificate certificate
    • Safety management practice i

      Korea research institute of bioscience and biotechnology (kribb)
      Jul 2021
      View certificate certificate
    • Renewable power generation and energy storage systems

      Ieee pes peru
      Mar 2021
      View certificate certificate
  • Honors & Awards

    • Awarded to Roland Kobla Tagayi
      Solar Power Paper Award Korea Institute of Power Electronics Society Jul 2021 Paper title: Flower pollination based MPPT algorithm for partial shaded solar PV system
    • Awarded to Roland Kobla Tagayi
      2019 Global Korea Scholarship Program Scholar National Institute for International Education, Korean Ministry of Education Sep 2019
    • Awarded to Roland Kobla Tagayi
      Certificate of Honor for being the Overall Best Graduating Student 2016/17 Academic Year. University of Energy and Natural Resources, Sunyani
    • Awarded to Roland Kobla Tagayi
      Citation of Honor as the Valedictorian for 2016/2017 Graduating Class University of Energy and Natural Resources Alumni Association