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Self-Excited Induction Generators (SEIG) have recently emerged for wind energy conversion in remote and rural areas due to many advantages as standalone induction generator over Grid Connected Induction Generators. However, poor voltage and frequency regulation under varying load and speed is the prime disadvantage of standalone SEIG. Steady state analysis for such machines is important to understand...
This paper presents an improved dynamic model with incorporating the saturation effects for an induction motor (IM). The improved model is simulated with MAT-LAB/SIMULINK software for transient response in terms of electromagnetic torque, rotor speed and stator current at no-load and on-load. The obtained simulated results provide a clear evidence that the conventional unsaturated model fails to predict...
With the advent of various simulation software packages and low cost personal computing devices in the market, computer-aided teaching tools have become an important part of present pedagogy. These tools support the classroom teaching by enabling the instructor to illustrate the working of various systems by means of computer generated graphics. This paper presents a very easy and interactive model...
This paper presents a generalized model of multi-phase induction motor drive using matlab/simulink. Multiphase induction motor (more than three phases) drives possess several advantages over conventional three-phase drives, such as lower torque pulsation, higher torque density, fault tolerance, stability, high efficiency and lower current ripple. When the number of phases increases, it is also possible...
This paper shows, through simulations using the software Matlab/Simulink, its library Simpowersystems and the standars IEEE 115-1995, IEEE 1110-2002, how to perform load rejection tests for salient pole synchronous generator and sudden short-circuit test for cylindrical rotor synchronous generator and how to obtain the values of the synchronous generator electrical operational parameters which are...
This paper depicts an automatic procedure using MATLAB software to plot circle diagram of an induction motor (IM), namely wound rotor, from no-load and blocked rotor tests. The interest of this approach is to avoid direct test load for predetermining the IM characteristics under reduced powers. Besides, to verify the validity of the equivalent circuit parameters deduced from experimental tests, the...
Based on mathematical analysis, the dynamic mathematical model of asynchronous motor with iron loss and the model without iron loss are deduced. Using the basic modules and S-function of MATLAB/SIMULINK, the simulation models of three phase asynchronous motor with iron loss and without iron loss are built. Compare the two models with the results of simulations, and give the influence on stator current,...
Small displacement equations valid for small excursions about an operating point are established from the machine equations expressed in synchronously rotating reference frame. The conventional form of d-q model used for drive simulation has limitations in predicting the machine performance. It is possible that, accurate results for fundamental component of current and average torque near rated operating...
BLDC motors have been gaining attention from various industrial and household appliance manufacturers, because of its high efficiency, high power density and low maintenance cost. After many research and developments in the fields of magnetic materials and power electronics, their applications to electric drives have increased to a significant extent. In this paper, the modeling of Brushless DC motor...
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