International Journal of Engineering Science Invention ISSN (Online): 2319 – 6734, ISSN (Print): 2319 – 6726 www.ijesi.org ||Volume 3 || Issue 6 || June 2014 || PP.15-25 www.ijesi.org 15 | Page Effects Of Electrical Parameters Variation On The Dynamic Behaviour Of Two-Phase Induction Motor Adedayo Kayode Babarinde 1 ,Temitope Adefarati 2 , Ayodele Sunday Oluwole 3 , Gerald Kelechi Ijemaru 4 Kehinde Olusuyi 5 1,2,3,4, (Department of Electrical/Electronic Engineering, Federal University Oye Ekiti, Nigeria) 5 (Physical Planning Unit, Federal University Oye Ekiti, Nigeria) ABSTRACT : This research work seeks to analyse the performance of a two-phase induction motor using dynamic model based on MATLAB. The 4 th order Runge-Kutta was used for the solution of this dynamic model. The modelling and simulation will be strictly for Two-phase induction motors used in low power applications. Measured and simulated results would be discussed and correct mitigation techniques would also be recommended .Future work within the scope of this research work would also be discussed. With the growing concerns about low-cost operation and efficient use of energy, Two-Phase induction motors have gained interest in low-power applications, especially for domestic or commercial applications where a three-phase power supply is not available. This result from this research work would help improve the design of two-phase induction motor used in the applications above. KEYWORDS : Induction motor, Two phase ,Dynamic modeling ,Flux , linkage ,Stator ,Rotor , commutator. I. INTRODUCTION The dynamic models of systems are representations such as functions, sets of differential equations and so that allow estimations on the outputs based on input measurements. There are two basic ways to determine the dynamic models of a given system either using explanatory theories or with input and output measurements and system identification algorithms. In the basic approach, the dynamic models of the electric drives are obtained with the direct and quadrature-axis theory tailored to the specific class of the electric machine and power converter. The implementation of the direct and quadrature-axis theory provide models that allow estimating system‟s response in the time domain, Henneberger (2002). The estimate's consistency is affected by the accuracy of the measurements and the consistency of the parameters‟ estimates. With the space vector definition, the time domain model of the machine may be transformed into the complex representation. The complex representation of the electric machine model provides the easiest way to transform the dynamic model from one reference coordinate system to another. In addition, in the complex representation the command of the three-phase inverters can be handled in the most appropriate manner.In small power applications, asymmetrical two-phase induction motors fed by single-phase supply have been widely used in electric machines in home appliances and industrial applications requiring less than 5 kW Ojo and Omozusi (2001). Single-phase induction motors with main and auxiliary winding can be viewed as two-phase machines, since these winding mechanisms are displaced 90 degrees apart from each other. Therefore, two-phase induction motors have a configuration identical to single-phase induction motors, but the input voltage applied to the stator winding terminals is independently controlled so that a two-phase voltage is supplied. In recent years, several methods that use models for simulation of two-phase induction motors have been proposed. The dynamics of single/two phase induction motors have been studied and performance evaluated. II. STATEMENT OF PROBLEM In an electric drive system, the motor is part of the control system elements. Due to the complex nature of the dynamic models of induction motors, there is a need for the dynamic behavior of the motor to be considered, in order to assess the induction motor performance with electrical parameter variations. III. OBJECTIVES The main objectives of this research work are: [1] To carry out the dynamic modelling of a Two- phase induction motor. [2] To use the 4 th order Runge-Kutta method for solving the dynamic model. [3] To simulate the dynamic behaviour of a two-phase induction motor. [4] To clarify the effects of electrical parameter variations on the dynamic behaviour of Two-phase induction motor.