Sensorless Predictive Speed Control of Permanent-Magnet Synchronous Generators in Wind Turbine Applications

Konferenz: PCIM Europe 2019 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
07.05.2019 - 09.05.2019 in Nürnberg, Deutschland

Tagungsband: PCIM Europe 2019

Seiten: 8Sprache: EnglischTyp: PDF

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Abdelrahem, Mohamed; Kennel, Ralph (Institute for Electrical Drive Systems and Power Electronics (EAL), Technical University of Munich (TUM), Munich, Germany)
Hackl, Christoph (Department of Electrical Engineering and Information Technology, Munich University of Applied Sciences, Munich, Germany)
Rodriguez, Jose (Facultad de Ingenieria, Universidad Andrés Bello, Santiago, Chile)

This paper proposes a sensorless predictive speed control (PSC) technique for permanent-magnet synchronous generators (PMSGs) in variable-speed wind turbines. The proposed technique allows to manipulate all the mechanical and electrical variables (i.e. speed and current/torque) in a single control law to generate the optimal switching state to apply in the next sampling instant. Accordingly, the cascaded-control structure is eliminated, which significantly enhanced the dynamic performance of the proposed control strategy. Furthermore, a non-linear observer is proposed to estimate the speed/position of the rotor and the load torque, and accordingly, the system reliability is enhanced and the cost is reduced. Experimental results using a dSPACE DS1007 R&D controller board-based real time system and 14.5 kW PMSG are presented to verify the feasibility of the proposed control algorithm