Adaptation Of The Armature And Field Current Controller - Siemens SINAMICS DCM Operating Instructions Manual

Dc converter

Hide thumbs Also See for SINAMICS DCM:

Table of Contents

Adaptation of the armature and field current controller

The current controller (armature current controller and field current controller) of the

SINAMICS DCM operate with a controlled system that is very non-linear.

Types of non-linearity

There are 2 types of non-linearity:

1. Non-linearity of the gating unit:

In the armature circuit, there is a significant difference in the controlled system gain (= line-

commutated thyristor converter in the B6 bridge connection) between discontinuous and

continuous current.

In the field circuit, the system is essentially always in the discontinuous current range, but

the control characteristic of the B2Z or B2 bridge manifests a significant degree of non-

SINAMICS DCM DC Converter

Operating Instructions, 1.2012, C98130-A7066-A1-05-7619

10.12 Adaptation of the armature and field current controller

Descriptions of functions