3314 Development of Converter-Inverter with water and natural ventilation cooling system for the first adoption to the Shinkansen

Abstract

East Japan Railway Company and Hitachi have been developing a new Converter-Inverter with water and natural ventilation cooling system. The system is applied to the E954 series Shinkansen preliminary. Circulated water that refrigerates the Converter-Inverter is cooled down by natural ventilation and it allows to dismantle the blower. The system contributes weight and noise reduction. In this paper, we will introduce "ventilation system structure" and "cooling capability of the system" based on its test run results.