Master Thesis: "Enhancing Water Diffusion Modeling and Moisture Criteria for Energized Transfor[...]

Hitachi Vantara Corporation; Bad Honnef; Vor Ort; EUR 35.000 - 50.000; Vollzeit

Zusammenfassung

A global technology firm in Bad Honnef seeks a Master's student to develop advanced models for transformer insulation. Responsibilities include extending water diffusion models and validating results through simulations. Candidates should have a background in Electrical Engineering or Applied Physics and strong modeling skills. Fluency in English is required, with German as a plus.

Leistungen

Supervision by experienced R&D professionals

Access to internal models and simulation tools

Opportunity for follow-up roles in research or engineering

Qualifikationen

• Master’s student in Electrical Engineering, Power Systems, Applied Physics, or related fields.
• Fluent in English; German is a plus.

Aufgaben

• Extend the water diffusion model including moisture dynamics.
• Develop criteria for evaluating water content under energized conditions.
• Investigate moisture distribution effects on voltage response.
• Validate model improvements through simulations and tests.

Kenntnisse

Modeling and simulation

Analytical skills

MATLAB

Python

COMSOL

Ausbildung

Master’s in Electrical Engineering

Master's in Applied Physics

Jobbeschreibung

Description

Understanding the moisture dynamics in transformer insulation is critical for predicting aging, dielectric failure, and overall reliability. While recent models like the Thermo-Chemical Digital Twin offer advanced simulation capabilities, one of the main opportunities for improvement lies in modeling non-uniform water distribution and its impact on voltage behavior under transient conditions. Additionally, no established criterion exists for evaluating water content in paper insulation under energized conditions.

Your responsibilities

• Model Development: Extend the water diffusion model to include spatially resolved moisture dynamics and additional influencing factors such as temperature gradients and oil aging
• Diagnostic Criteria: Develop a practical criterion for evaluating water content in paper insulation under energized conditions
• Voltage Behavior Analysis: Investigate how increased and non-uniform moisture distribution affects voltage response under impulse and switching conditions
• Validation: Validate model improvements through simulations and comparison with Breakdown Voltage (BDV) tests using special wave shapes

Your background

• Master’s student in Electrical Engineering, Power Systems, Applied Physics, or related fields
• Strong foundation in modeling and simulation (e.g., MATLAB, Python, COMSOL)
• Knowledge of dielectric materials and transformer insulation systems
• Analytical and independent working style
• Fluent in English; German is a plus

What we offer

• Supervision by experienced R&D professionals
• Access to internal models, data, and simulation tools
• Opportunity to contribute to cutting-edge transformer diagnostics
• Potential for follow-up opportunities in research or engineering roles
• switching conditions

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