Magnetic Functional Integrated DC Motor Drive

Abstract

This paper presents the concept of magnetic functional integrated DC motor drive. It uses the field winding of a wound-field DC motor as the inductor of its drive circuit. The field winding in a wound-field DC motor not only builds the required magnetic field for the electric-mechanic energy conversion, but also acts as the inductor to buffer the energy for the drive circuit. One magnetic component is shared to realize different functions for motor and its drive circuit, simultaneously. The weight, loss and cost of the drive system can be reduced due to the saving of extra bulky inductors for the drive circuit. This concept can be applied to all DC-DC drive circuits using inductor as its energy buffer. An example of magnetic functional integrated DC motor drive using the buck-boost converter is used to explain the concept in detail. The feasibility and the new features are verified experimentally by comparing with the conventional motor drive. INDEX TERMS Motor drive circuit, wound-field DC machines, functional integration, electromagnetic coupling, circuit modeling.

Implementation of higher order sliding mode control of DC–DC buck converter fed permanent magnet DC motor with improved performance

“…DC motors are extensively applied in an industrial control application because of its robustness and broad range of speed-torque characteristics [1,2]. These applications require high exactness with broad range of speed control under disturbances.…”