Velocity Regulation in Pmsms Using Standard Field Oriented Control Plus Adaptation

Abstract

Abstract In this paper we present a control scheme for permanent magnet synchronous motors which is proven to be stable and globally convergent to the constant desired velocity. Our controller only differs from standard field oriented control by some simple adaptive terms and performance achieved by both controllers is almost identical. Thus, the main contribution of the present paper is to introduce a formal stability proof which is the closest, to date, to explaining why standard field oriented control of permanent magnet synchronous motors works well in practice providing explicit tuning guidelines. We stress that a global stability proof for standard field oriented control of permanent magnet synchronous motors has not existed until now, which makes the importance of our contribution remarkable.