MPPT of Magnus Wind System with DC Servo Drive for the Cylinders and Boost Converter

Abstract

This paper presents an algorithm MPPT (Maximum Power Point Tracking) for a Magnus wind system with a DC servo drive system (DC drive and BLDC motor) to rotate the turbine cylinders. The optimal cylinders rotation is the one to deliver the maximum power extracted from the wind tracked by fixed and adaptive step HCC (Hill Climbing Control) acting on the servo drive. The proposed wind system consists of a PMSG (Permanent Magnet Synchronous Generator), a three-phase diode rectifier, a DC/DC (boost) converter, and a resistive load. Furthermore, the boost converter acts with the fixed step HCC algorithm to track the maximum power operating point. Therefore, the MPPT for a Magnus wind system requires both tracking for the optimal cylinder speed and the optimal generator speed.

Small Magnus Wind Turbine: Modeling Approaches

“…The third scientific group managed by Maro Jinbo focused its efforts on developing control systems of MWT [15,16]. They concluded that the most efficient approach is the maximum power point tracking (MPPT), based on the hill-climbing control algorithm (HIL) [15].…”

“…Based on the background, the authors designed an algorithm and method to realize the fixed-step HIL algorithm for MWT. The expanded description of the HIL algorithm was described in [16]. That paper focused on algorithm practical realization.…”