Optimized Pulse Patterns for Salient Synchronous Machines

IEEJ Journal of Industry Applications, vol. 10, pp. 740–747

Abstract

Synchronous optimal pulse width modulation is commonly applied when the ratio between the fundamental frequency and the switching frequency is low. Offline computed pulse patterns are optimized in terms of the harmonic distortion in phase currents. Typically, the underlying optimization problem is based on a simple inductor model representing the harmonic behavior of one phase of a nonsalient machine. This paper proposes an alternative formulation of the optimization problem, which generalizes it for salient machine types. An investigation of the optimization results' sensitivity to operating point-dependent parameters is presented.

Authors 3

1. Nina Hartgenbusch Aachen Institute for Power Electronics and Electrical Drives (ISEA)

   RWTH Aachen University

   Affiliation as printed

   Institute for Power Electronics and Electrical Drives (ISEA) RWTH Aachen University

2. Anna Thünen Aachen Institute for Geometry and Pratical Mathematics (IGPM)

   RWTH Aachen University

   Affiliation as printed

   Institute for Geometry and Pratical Mathematics (IGPM) RWTH Aachen University

3. Rik W. De Doncker Aachen Institute for Power Electronics and Electrical Drives (ISEA)

   RWTH Aachen University

   Affiliation as printed

   Institute for Power Electronics and Electrical Drives (ISEA) RWTH Aachen University