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Fiber Optic Sensors for Temperature Measurement in Emobility

Fiber Optic Sensors for Temperature Measurement in Emobility, This presentation explains advantage of fiber optic sensors in Emobility Industry.

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Fiber Optic Sensors for Temperature Measurement in Emobility

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  1. RM Fiber Optic Solutions for Emobility Segment

  2. RM Fiber Optic Solutions for Emobility Segment Electric Off-Road Veh Electric Trucks Railways Electric Buses Electric Cars Electric Vans Emobility Charging Stations Aeroplanes Charging Centers Electric Boats Electric Ships Drones

  3. Why Fiber Optics Now? • Electric vehicles are going to 1000V+, 700A+ for cars and 2400V+, 1000A+ for trucks • Traditional thermocouples are too slow and significant limitation above 200V • Thermocouple output is in millivolts and gets affected by Electric and Magnetic fields • Safety Risk from Thermocouples: Risk of short circuit at higher voltages, Corrosion etc. • Thermocouples are Non-Linear: Sensors are non-linear, require complex compensation • Thermocouples are large: not suitable to fit into tiny spaces on PCBs, Power Electronics, Charging Points • Slower Response: Thermocouples are not fast enough for accurate thermal profiling • Variation from Batch to Batch: Impact accuracy and repeatability of testing • Susceptible to High Voltage and Magnetic Fields • Thermocouples are not suitable for Explosive Environments • Thermocouples are not suitable with longer signal cables

  4. E-Mobility Applications Sensing Solutions for: Battery Test Stands MotorTesting Power Train Testing Battery Simulation Power Electronics PowerCables Fast Chargers Li-ion Battery packs Leading Temperature, Pressure, Vibration, Partial discharge sensing solutions for E-Mobility segments that are undergoing major design transformations with EV’s.

  5. Emobility Components Tested with Fiber Optic Sensors Battery and BMS Charging Plug Power Electronics HV Cables, Terminations and Joints EV Motors

  6. Fiber Optic Temperature Solutions: EV Motors • Solution for all kinds of EV Motors and Drivetrains DC Motors Series and Brushless Permanent Magnet Synchronous Motors (PMSM) Switched Reluctance Motors Induction Motors Series Motors (PMDC) Radial Flux PMSM SRM-Motor Squirrel Cage Axial Flux PSMS Brushless DC (BLDC) SRM - Motor Slip Ring

  7. Fiber Optic Temperature Solutions: EV Motors • Effective Countermeasures in Practice • Design Optimization and Stress Testing at Product Development Stage • Accurate Motor Thermal Profiling • Precise localization of weak points in insulation system • Maximize Cooling System Efficiency • Identify the Performance Limits of Motor accurately • Accurate analytics for remaining design life and identification of incipient failure conditions • Effective machine thermal control and Protection • Design Refinement / Optimization based on filed data • Why Temperature Testing and Monitoring in EV Motors? • ~30%-40% of all failures in Induction Motors are related to Winding Insulation Breakdown • High Temperature is mainly responsible for degradation of Winding Insulation • Winding Insulation Breakdown results into significant thermal stress – Start of a Vicious Cycle • Higher Power Density of EV/HEV Motor drive systems further increases the risk of Thermal Stress • EV/HEV Motors are susceptible to aging effects due to high motor loads encountered in • Harsh Environments: Steep Terrains, High Payload, High Ambient Temperature • Rapid accelerations and breaking

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