Electromagnetic Design & Motor Control Engineer
Resume:
Pandarinath M R
Mobile No: +919*********
Email: ***********@*****.***
https://in.linkedin.com/in/pandarinath-m-r-
9b1b5174
Professional Summary
Six-Sigma Green Belt Certified Motor Design & Control Algorithm Development Engineer with 10+ years of experience in Electromagnetic Design & Analysis through various FEA (Maxwell, MotorCAD) and Analytical tools
(RmXprt, SPEED) for Automotive & Aerospace applications. Master's degree from IIT Kharagpur and close to a year of International exposure(Illinois, USA). Areas of expertise include Technology Evaluation of Motors for given Applications (Switched Reluctance Motor vs Induction Motor vs Permanent Magnet Motor), Detailed Electromagnetic Design, Control Optimization, Switching Frequency Optimization for Inverter + Motor Systems, Drive System Simulations, Test Planning, and Motor Testing. DFSS Green Belt Certified, filed one patent, one trade secret, and published one paper in SAE International. Academic Qualifications
Degree/Course Institute/School Percentage Year
M.Tech (Machine Drives and Power
Electronics)
IIT Kharagpur 9.18/10 2013-2015
B.E (Electrical & Electronics
Engineering)
Government College of
Engineering, Tirunelveli
80.62/100-****-****
Board of Higher Secondary
Education, TamilNadu
Sourashtra HSS, Paramakudi 87.66/100 2006
Board of Secondary Education,
TamilNadu
Sourashtra HSS, Paramakudi 91.60/100 2004
Professional Experience
Caterpillar India Engineering Solution (September 2021 – Present) Roles & Responsibilities
Joined as an Electromagnetic Analyst as one of the early team members of the Electrification-India group and was responsible for developing the standard design method, simulation processes, and growing the team by 5X. Close to one year of International travel to Peoria, Illinois, USA as a critical resource to impact major program.
Major Accomplishments & Impact
Contributed to first-ever Caterpillar Large Mining Truck Battery Electric Vehicle through Electro- magnetic design changes, analysis, control-optimization and test planning. Managed all activities on the traction motor capable of producing 1.9MW of Power
Automated workflow for PMSM (Permanent Magnet Synchronous Motor) simulation and analysis to include the DC-link voltage, control, switching frequency and PWM method and its impact on Motor Performance and loss distribution. This automation has been adopted across the Caterpillar Global Team, significantly reducing design iterations and simulation time.
Technology evaluation for a given application by comparing Switched Reluctance Motor Vs Induction Motor Vs Permanent Magnet Motor. Crucial activity in selecting the Motor Strategy for the Caterpillar Global Team’s Enterprise Component Strategy.
Created a Quick Motor Sizing Tool using normalized motor parameter and scaling it based on power and torque requirement. This tool has simplified system architecture and strategy with faster motor design evaluations for various applications.
Electromagnetic design of current sensor (core type vs shield type) as part of a cost reduction program, developing Caterpillar's first-ever current sensor to mitigate supplier dependency and reduce costs.
Developed an automated method and process for simulation, steel supplier performance comparison, and control development, ensuring quality and reducing turnaround time for future product development activities.
Turbo Energy Pvt Ltd (April 2020-Septemeber 2021)
Roles & Responsibilities
Joined as Team Lead to lead the first-ever high-speed PMSM Design Motor (150,000 rpm) for e-Turbo, aiming to eliminate turbo-lag in the automotive industry compared to traditional turbochargers. Major Accomplishment & Impact
Identified the right configuration of pole/slot combination through PUGH matrix.
Optimized the motor design along with the appropriate inverter selection.
Collaborated with the Structural, Rotor Dynamics, Bearing Teams, and Thermal Team to finalize the design.
Collaborated with the Structural, Rotor Dynamics, Bearing Teams, and Thermal Team to finalize the design.
Test-planning and Design Validation
Mercedes Benz Research & Development India Pvt Ltd (June 2019 – April 2020) Roles & Responsibilities
Responsible for the High-Voltage electrical system of powertrain modelling of the eCitaro bus, primarily focused on motor and inverter controller modeling. Also involved in developing and improving the solid-state battery model and its control.
Major Accomplishment & Impact
Model-based design of electric powertrain to perform MIL testing and validate against measurement data.
Energy simulation and range calculation for the eCitaro bus for SORT and other duty cycles.
Driver modeling to emulate human behavior for simulations.
NMC and solid-state battery modeling through system identification.
Rebuilt control for the solid-state battery and developed control strategies for switching between active and inactive states.
EATON Technologies Pvt Ltd (July 2015- June 2019)
Joined as an Engineer from college campus at EATON Technologies Pvt. Ltd, involved in understanding field problems from customers and developing innovative solutions and products for electric vehicles & Aerospace businesses.
My responsibilities include:
Work with cross-functional teams to understand customer problems
Understand the physics behind the problem, draft solution concepts and shortlist the best concept through simulation
Build experimental test setups, test the proposed solution in the lab and improve the robustness of solution
Projects worked/Solutions developed:
PMSM, BLDC & Induction machine diagnostic solutions
High Power density special Motor design and its control development
Inverter, DC-DC converter and EV Charger optimized Topologies – Proof of concept
Inverter/DC-DC converter life prediction solution
Prediction of nuisance operation of electric vehicle fuses in advance
Improved Smoke sensor which distinguishing smoke from steam and dust Tools & Technical knowledge gained:
MATLAB-Simulink, M-script, Embedded C, LabVIEW, ANSYS-RmXprt, ANSYS-Maxwell 2D, ANSYS-Simplorer Minitab, System Identification tool, Neural Network Tool
Electric Vehicle system, PMSM and Induction Machine Drive control, Diagnostics and Prognostics of Power electronic System and Motor, Traction Motor Design, Intelligent sensor and solution development Academic Projects
Highly Efficient, High Power and Compact DC-DC converter for Traction Applications
(M.Tech Project)
The aim of the project is to design and develop a hardware prototype of a 32.5kW energy-efficient converter for high-speed traction applications as a part of Indian Railways Vision-2020. The project was selected by the IIT Kharagpur Senate as the best application-oriented demonstrable project among all M.Tech projects in the 2014-2015 academic year from Electrical Engineering, Electrical & Telecommunication Engineering, Computer Science, and Information Technology, and was awarded the
‘KESHAB K PARHI’ prize.
Developed a hybrid version of Single Active Bridge and NPC converter with soft- switching features to mitigate diode reverse recovery losses.
The proposed model can operate in continuous conduction mode across the entire input voltage range of 175V to 675V, using the smallest possible passive elements to maximize power density.
Designed and implemented a PI controller on a DSP+FPGA board using Embedded C and Verilog to maintain constant output voltage regardless of load and input voltage variations.
The Proposed model reduces the current rating of active devices and improves efficiency Selective Harmonic Elimination in Multilevel Cascaded Inverter using Artificial Neural Network (B.E Project)
The Project involves MATLAB-Simulink simulation of Seven-level cascaded inverter using Artificial Neural Network for selective harmonic elimination method to reduce the THD.
Achieved the lowest THD of AC voltage with minimal switching losses by employing an isolated DC source and selecting a multilevel cascaded inverter with selective harmonic elimination.
Successfully eliminated dominant 3rd and 5th harmonics from the output of the multilevel cascaded inverter by switching at optimum angles.
Replaced a large and memory-intensive lookup table with a trained Artificial Neural Network. Mini Project/Presentation
Single Stage Energy Conversion with High-Frequency Transformer for Solar Applications This part of M.Tech course involved studying and presenting various converters for solar applications.
Implemented boost, isolation, and inversion functions using a single converter.
Utilized ceramic capacitors to reduce size, increase efficiency and extend lifetime.
Utilized stored energy in the transformer's leakage inductance and transferred it to the grid. Personal Particulars
Date of Birth : 28th Dec 1988
Gender : Male
Marital Status : Married
Nationality : Indian
VISA Status : B1/B2 US
Languages Known : English, Hindi, Tamil and Sourashtra Hobbies : Listening to Music
Tools Knowledge
Ansys Maxwell 2D & 3D
Ansys MotorCAD
Ansys Simplorer
Ansys RmXprt
SPEED
Iron Python
MATLAB Simulink
MATLAB M-Script
System Identification Tool
Neural Network Tool
LABVIEW
Minitab
Embedded C
Verilog Code
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