Efficient operation of anisotropic synchronous machines for wind energy systems

The Science of Making Torque from Wind

Eldeeb, Hisham^1 ; Hackl, Christoph M.^1 ; Kullick, Julian^1

Munich School of Engineering, Technical University of Munich, Garching

85748, Germany^1

关键词: Analytical method;    Conventional methods;    Electrical drive systems;    Maximum torque per ampere (MTPA) operations;    Online computations;    Synchronous machine;    Wind energy systems;    Wind turbine systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/11/112009/pdf
DOI  :  10.1088/1742-6596/753/11/112009

来源: IOP

【 摘 要 】

This paper presents an analytical solution for the Maximum-Torque-per-Ampere (MTPA) operation of synchronous machines (SM) with anisotropy and magnetic cross-coupling for the application in wind turbine systems and airborne wind energy systems. For a given reference torque, the analytical MTPA solution provides the optimal stator current references which produce the desired torque while minimizing the stator copper losses. From an implementation point of view, the proposed analytical method is appealing in terms of its fast online computation (compared to classical numerical methods) and its efficiency enhancement of the electrical drive system. The efficiency of the analytical MTPA operation, with and without consideration of cross-coupling, is compared to the conventional method with zero direct current.