12-06-2012, 02:48 PM
Sliding Mode Control of Surface-Mount Permanent-Magnet Synchronous Motor Based on Error Model with Unknown Load
Sliding Mode Control of Surface.pdf (Size: 383.39 KB / Downloads: 62)
INTRODUCTION
In recent years, advancements in magnetic materials,
semiconductor power devices, and control theory have
made the SPMSM drive plays a vitally important role in
accurate motion control in the low-to-medium power
range. The desirable features of the SPMSM are its
compact structure, high air-gap flux density, high power
density, high torque-to-inertia ratio, and high torque
capability [1-3]. At present, the research of SPMSM
control design can be divided into three main aspects.
The first aspect is to enhance the robustness of the drive
system. The second aspect is to enhance the control
accuracy. And the third aspect is to enhance the ratio of
the performance and the price.
CONCLUSIONS
In this paper, we give a novel error model of the
SPMSM which can be seen as the combination of two
decentralized subsystems, the electrical magnetic
subsystem and electrical mechanical subsystem. The
proportional speed error is used to take the place of the
unknown load. The sliding mode control is applied to the
controllers design of the SPMSM drive system.