In this paper a novel hysteresis current control is proposed. It is based on a simplified predictive algorithm that somewhat recalls those used in the direct torque control drives. The two major features are the sensible reduction of inverter switches commutations and the full-digital implementation based on look-up tables. The proposed algorithm has been implemented as inner loop of a speed control for a permanent magnet synchronous motor (PMSM). The result has been a low-cost, efficient and reliable PMSM drive, with good overall dynamic performance. The paper reports both simulation and experimental results, carried out on a laboratory prototype.
Full-Digital Predictive Hysteresis Current Control for Switching Losses Minimisation in PMSM Drives
BOLOGNANI, SILVERIO;ZIGLIOTTO, MAURO
2002
Abstract
In this paper a novel hysteresis current control is proposed. It is based on a simplified predictive algorithm that somewhat recalls those used in the direct torque control drives. The two major features are the sensible reduction of inverter switches commutations and the full-digital implementation based on look-up tables. The proposed algorithm has been implemented as inner loop of a speed control for a permanent magnet synchronous motor (PMSM). The result has been a low-cost, efficient and reliable PMSM drive, with good overall dynamic performance. The paper reports both simulation and experimental results, carried out on a laboratory prototype.
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