Analytical Field Study on Induction Motors under Fluctuated Voltages

Double-Cage Induction motors behavior under Flicker Conditions

Minimum-time minimum-loss speed control of induction motors under field-oriented control

A new minimum-time minimum-loss speed control algorithm for induction motors is suggested to obtain high performance, as well as high efficiency, under field-oriented control with practical constraints on voltage and current. This algorithm utilizes a two-stage control. In the transient stage, a maximumtorque control algorithm is utilized to get the minimum-time response. In the steady state, a...

Two Remarks on Induction Motors

This paper addresses two points: first, induction motors are shown to be flat, which implies they can be easily controlled by full-state feedback (for instance with a linearizing (dynamic) feedback); second, an exponential observer, relying on easily measurable variables (stator current and rotor velocity) is proposed.

double-cage induction motors behavior under flicker conditions

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Performance Evaluation of Induction Motors Under Optimal-Energy Control

This paper presents experimental results of a nonlinear torqueux optimal control for induction motor drives. This controller, minimizes the stored magnetic energy and the coil losses, while satisfying torque tracking control objectives [2]. The optimal control calculates and imposes time-varying (torque-reference depending) rotor ux norms. The controller is a cascadebased scheme with tree main ...

Global Observability Analysis of Induction Motors under Sensorless Conditions

The problem of achieving high performance from induction motor based drives without sensing mechanical variables, i.e. high performance sensorless control is a widely studied topic, specially in the last decade. Several works point out some operating regimes where reliable control and speed estimation fail. However, a complete understanding of the nature of these limitations does not exist due ...