Inductive emissions were found to interfere with the operation of rate-coded AF track circuits. Once the phenomenon was fully understood, several mitigating schemes were conceived, and one of these was tested and implemented. Conductive emissions were not observed to cause interference. The interface applicable to conductive emissions is more involved than the inductive emissions interface, but seems to be analytically tractable. However, more work is required to verify the models and to catalog and quantify all possible conductive interference situations, before a both reasonable and sufficiently general interface can be established.
Compatibility of rate-coded audio frequency track circuits with chopper propulsion drive in transit systems
Elektromagnetische Kompatibilitaet zwischen ratencodierten Tonfrequenz-Fahrstreckennachlaufsystemen und Pulsmodulations-Schnellbahnantrieben
IEE int. conf. on railways in the electronics age ; 203 ; 128-135
1981
8 Seiten, 10 Bilder, 10 Quellen
Conference paper
English
The Regenerative Chopper Propulsion System for Modern Transit
SAE Technical Papers | 1977
|Rapid transit experience with chopper controlled DC motor propulsion
Tema Archive | 1979
|