Three-phase systems

This paper proposes a new state-space model that can well represent a real threephase power system by taking into account the unbalance conditions and harmonic distortion of a three-phase power system. The model associated with Extended Kalman Filter is then applied to estimate the positive and negative sequences of the fundamental component.

6p vicapital2711 02-08-2019 15 1   Download

In this chapter you will learn the following: ² The concepts of power, (real reactive and apparent) and power factor ² The operation of threephase systems and the characteristics of balanced loads in Y and in ¢ ² How to solve problems for threephase systems

123p longmontran 14-01-2010 93 10   Download

Synchronous machines come in a variety of different constructions and designs. The differences occur in the physical outlay of the rotor and in the way in which excitation flux is provided (if it is provided at all) in the machine. Regardless of the type however, all the synchronous machines have the same construction of the stator. Stator is of cylindrical crosssection, manufactured from laminated sheets of steel, and it carries a three-phase winding that is supplied with (in the motor case) or that produces (in the generator case) a system of threephase voltages....

25p liemthanh 14-12-2009 84 4   Download