CONVERTER-INTEGRATED SOLID-STATE TRANSFORMER

Overview

Lightweight Semiconductor Transformer to Replace Oil-Immersed Traction Transformers

Conventional oil-immersed traction transformers and converters are heavy and bulky.

Limited efficiency and passive power control restrict energy-efficient train operation.

Demand is growing for next-generation power semiconductor–based traction systems.

Integrated converter-type semiconductor transformer enables lightweight, high-efficiency traction power.

Active power control supports emergency running and rapid response to faults and incidents.

Core Competencies

Purpose
High-efficiency semiconductor transformer with integrated converter for lightweight, actively controlled traction power in rail vehicles.

Multi-Level Power Conversion Topology

Multi-level converter topology for semiconductor traction transformer.

High-frequency transformer structure optimized for semiconductor traction power.

70 kV-class insulation concept for high-voltage semiconductor transformer.

High-speed synchronous control for modular power conversion units.

Expected Benefits

Weight Reduction
– 24% lighter than conventional oil-immersed transformer and converter systems.

Energy Efficiency
– Active power control improves traction efficiency and reduces power losses.

Operational Resilience
– Supports emergency running and fault-tolerant, safe train operation.

Space & Maintenance Savings
– Compact, integrated design eases installation and maintenance work.

Certifications

TRL 6

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