Interconnection and damping assignment approach for reliable PM synchronous motor control

Abstract

The goal of this paper is to design a high performance speed controller for a PMSM drive. The controller is passivity based using the energy shaping technique namely Interconnection and Damping Assignment. Under some assumptions, a linear controller is derived associated to a non linear observer to estimate the load torque which is unknown. The important point developed in this paper is the proof of the global stability, which is mandatory in a drive especially in embedded or transportation applications where reliability is a key issue. Simulation and experimental results prove the feasibility of the approach.

An asymptotically stable sensorless speed controller for non‐salient permanent magnet synchronous motors

“…The main objective of this paper is to prove that direct application of two well‐established design methodologies—immersion and invariance (I&I) for the observer, and interconnection and damping assignment passivity‐based control (IDA‐PBC) for the control—can be combined with the observer of to design an asymptotically stable sensorless controller. The result builds upon some preliminary work reported in where, assuming position is known , I&I techniques are used to design a speed and load torque observer, and in where full state‐feedback , globally convergent, IDA‐PBCs for the PMSM are proposed.…”

“…The final component of (17) is related with the closed-loop behavior of 67 . To obtain their dynamics, consider, from the observer (15), that the estimates for speed and load torque are given by…”

“…The full information (state-feedback) version of the controller (11) is presented in (22). This scheme is obtained, in a similar way as in [15,16], by applying the IDA-PBC design methodology.…”

Estimation of Rotor Position and Speed of Permanent Magnet Synchronous Motors With Guaranteed Stability

“…In this case where • Some preliminary calculations show that the observers can be used in conjunction with the full state feedback controller of [2] ensuring local stability. Critical in the establishment of this result is the fact that the controller of [2] is a simple linear state feedback.…”

“…2 A key step in the observer design is the choice of a suitable set of coordinates for the system, where the existence of an algebraic constraint allows to define an auxiliary output. The use of these coordinates was first reported in [25] where a Kazantzis-Kravaris-Luenberger observer was proposed.…”