electrical machines dynamics

Electromechanical energy conversion. Magnetically coupled circuits and equivalent circuit representation. Distributed circuits of electrical machines and inductances calculation. Transformation of 3-phase circuit variables to a two-phase reference frame. Voltage equations of Asynchronous (A.M.) and Synchronous Machine (S.M.) in 3-phase system, inductances. Park transformation. Generalized models of A.M. and S.M. in d-q system, inductances. Space vectors. Electromechanical torque calculations. Steady state analysis, faulty operation analysis, study of transient phenomena. Operational impedances and time constants of S.M.. Linearized equations of A.M. and S.M.

Objectives

Deeper understanding of the design and operational behavior of the electrical machines and more specifically the Asynchronous and Synchronous machine. Methods and analysis of their operation at steady and transient state. Calculations of the electromagnetic torque and parameters of the electrical machines.

Prerequisites

Electrical circuits theory, differential equations, electrical machines.

Syllabus

1) Introduction to the dynamic behavior of electrical machines 2)Electromechanical energy conversion 3)Mechanical elements, Force calculation, electromagnet 4)Magnetically Coupled Circuits 5)Transfomation of a 3-phase system into d-q axes 6)Parameters of an Electromechanical System 7)3-phase Induction Machine 8)3-phase Synchronous Machine 9) Small-diplacements method