Development of a Pre-test for Radiative Emission from Railway Traction Inverters

Abstract

EMC compliance tests for demonstrating no interference to railway signaling systems are becoming more important in manufacturing railway traction inverters. This paper proposes a pre-test for radiation from traction inverter-motor systems. First, the paper describes a simple calculation model of magnetic coupling between motor cables and antenna coils of balises. Next, the paper shows the results of experimental validation tests, which indicate the usefulness of the model. The validation tests are performed on combined-tests and at completed vehicles. Lastly, the paper shows the result of applying the proposed pre-test to an actual DC railcar.