A Novel Equivalent Circuit for Induction Motors under Voltage Fluctuation Conditions

a novel equivalent circuit for induction motors under voltage fluctuation conditions

voltage fluctuation is one of the important types of power quality aspects originated from heavy fluctuating loads. this phenomenon can influence the behavior of induction motors, produce excessive vibration and increase the ohmic losses. in this paper a simplified model to evaluate the electrical characteristics of three phase induction motors under voltage fluctuation conditions will be prese...

A Generalised Operational Equivalent Circuit of Induction Machines for Transient/dynamic Studies under Different Operating Conditions

The paper derives a generalised operational equivalent circuit for induction machines starting from fundamental principles in any arbitrary rotating reference frame. Directly measurable parameters are used in this equivalent circuit From this generalised model, the equations for any reference frame are derivable as particular cases. The model presented is versatile as it can be used for any ope...

Double-Cage Induction motors behavior under Flicker Conditions

Analytical Field Study on Induction Motors under Fluctuated Voltages

Nowadays study of input voltage quality on induction motors behavior has become a controversial subject due to the wide application of these motors in the industry. The impact of grid voltage fluctuations on the performance of induction motors can be included in this area. The majority of papers devoted to the influence of voltage fluctuations on the induction motors are focusing only on the so...

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 ...

double-cage induction motors behavior under flicker conditions

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