Journal ArticleDOI
Derivation of Induction Motor Models from Standstill Frequency Response Tests
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TLDR
In this paper, standstill frequency response (SSFR) tests were conducted on four induction motors with ratings of 300, 400, 1000, and 1750 horsepower, and an equivalent circuit was derived for each motor.Abstract:
Standstill frequency response (SSFR) tests were conducted on four induction motors with ratings of 300, 400, 1000, and 1750 horsepower. Using the SSFR test data, an equivalent circuit was derived for each motor. The speed-torque and speed-current curves calculated from the equivalent circuit were compared with those reported by the manufacturer. The comparison showed good agreement of the SSFR-based model with manufacturer's performance curves in the case of the 300 hp motor. Including a simple approximation for saturation effects provided reasonable agreement for the 1000 hp and 1750 hp motors. Results for the 400 hp motor were at considerable variance with manufacturer's curves. >read more
Citations
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Journal ArticleDOI
A survey of efficiency-estimation methods for in-service induction motors
TL;DR: In this paper, an up-to-date literature survey on efficiency-estimation methods of in-service motors, particularly with considerations of the motor-condition-monitoring requirements, is presented.
Journal ArticleDOI
Parameter identification of induction motor model using genetic algorithms
TL;DR: In this paper, a GA was used to identify the parameters of an induction motor model using genetic algorithms, where the inverter supplying the motor is directly accessible for control of the conduction sequences of its power switches.
Proceedings ArticleDOI
Estimation of induction machine parameters from standstill time domain data
S. Moonl,Ali Keyhani +1 more
TL;DR: In this paper, a step voltage disturbance is applied across the stator terminals while the machine is in standstill condition, and the resulting stator voltage and current responses are measured.
Journal ArticleDOI
Application of genetic algorithms to motor parameter determination for transient torque calculations
TL;DR: In this paper, the authors apply genetic algorithms to the problem of induction motor parameter determination, using manufacturers' published data like starting torque, breakdown torque, full-load torque, and fullload power factor.
Journal ArticleDOI
Parameter determination for modeling system transients-Part I: overhead lines
TL;DR: In this paper, the sensitivity of phase conductors, shield wires, towers or poles, footing impedances, insulators, and insulators are investigated for the overhead line parameters.
References
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Journal ArticleDOI
Induction Machine Modelling for Electromagnetic Transient Program
TL;DR: In this article, an accurate dynamic induction motor model was developed from a knowledge of standard specification data for the motor and the incorporation of the model into the Electromagnetic Transients Program (EMTP) was described.
Journal ArticleDOI
Calculation of system-fault currents due to induction motors
TL;DR: In this paper, the authors make recommendations for a standard method of determining the contribution made by induction motors to the fault currents in a power system, based on a detailed theory of induction-motor transients, in which accurate formulas are derived for the current following a sudden short circuit.
Journal ArticleDOI
Modeling Induction Motors for System Studies
TL;DR: In this article, the authors present a convenient way to derive a set of parameters suitable for the entire operating range and therefore suitable for use in induction motor-starting studies, which is essential to predict available starting torques.
Journal ArticleDOI
Bus transfer of multiple induction motor loads in a 400 megawatt fossil power plant
TL;DR: In this article, a computer model capable of simulating multiple induction motors during bus transfer is described and its results compared with field tests, and the results support these findings, but indicate that the combination of high and low-inertia motors fed from the same bus will reduce motor peak-shaft torques when compared to individual transfer of low inertia motor/pump units alone.
Journal ArticleDOI
Improvement in Modeling and Testing of Induction Motors
TL;DR: In this paper, the authors present a method for identifying the parameters of a new model of induction motor, which has two rotor loops in order to take into account the deep-bar effect and a non-linear leakage reactance which represents magnetic saturation effect.