Summary

Surrogate modeling is an integral part of power systems operations, planning, diagnostics and design. Satisfactory training of surrogate models relies on sufficient amount of high-quality representative data. In surrogate modeling that requires complex engineering design optimization across multiple domains, a critical challenge is to scale the designs to a wide range of parameters. Such a scaling needs to satisfy the performance requirements and ensure robustness against manufacturing variations, environmental stresses, and aging effects. The current approach in many engineering fields involves iterative, time-consuming processes that rely heavily on domain experts conducting repetitive simulations with minor parameter adjustments. Achieving reliable operation under extreme conditions, including temperature variations, electromagnetic stresses, and process tolerances, requires robust design methodologies that can systematically explore and validate design resilience across diverse operating scenarios, which makes design of power system components challenging. Traditional optimization methods often face scalability issues when the parameter space is high dimensional.

To address the aforementioned challenges we introduce an end-to-end methodology for providing good-quality data generated or sampled from targeted regions of the parameter space.

This method combines generative modeling, representation learning, surrogate modeling and optimization techniques to create a flexible framework applicable across diverse power system component design domains and establish its merits with an application to automated design of power semiconductor devices. The approach incorporates reliability-driven constraints and multi-physics considerations to ensure designs remain robust against real-world operational uncertainties and enhances standard optimization pipelines with targeted local improvements.

While traditional optimization methods often operate directly in the full-parameter space, our approach introduces a local design enhancement strategy which is instrumental in power systems engineering applications as it contributes to efficient computational resource allocation. We evaluate the merit of the proposed end-to-end framework for design automation with a case study of Insulated Gate Bipolar Transistor (IGBT) termination design. Moreover, we describe the problem setting for two other use cases in the proposed framework to showcase the possible extension of embodiments of the framework in engineering design automation tasks for power system assets.

Additional informations

Publication type Session Materials
Reference D1_11861_2026
Publication year
Publisher CIGRE
Country Canada
Study committees
File size 850 KB
Price for non member 30 €
Price for member 30 €

Authors

CHAKRAVORTY Jhelum - Hitachi Energy Research; RIPAMONTI Nicolo - Hitachi Energy Research

Keywords

Reliable power system component design automation, generative modeling, representation learning, end-to-end framework

End-to-end Design Automation for Reliable Power System Components