Show effects of saliency and saturation, Electrical Engineering

Q. Show Effects of Saliency and Saturation?

Because of saliency, the reactancemeasured at the terminals of a salient-pole synchronousmachine as opposed to a cylindrical-rotor machine (with uniform air gap) varies as a function of the rotor position. The effects of saliency are taken into account by the two-reactance theory, in which the armature current ¯Ia is resolved into two components: Id in the direct or field axis, and Iq in the quadrature or interpolar axis. Iq will be in the time phase with the excitation speed voltage ¯Ef , whereas Id will be in time quadrature with ¯Ef . Direct- and quadrature-axis reactances (Xd and Xq) are then introduced to model the machine in two axes. While this involved method of analysis is not pursued here any further, the steady-state power-angle characteristic of a salient- pole synchronous machine (with negligible armature resistance) is shown in Figure. The resulting power has two terms: one due to field excitation and the other due to saliency. The maximum torque that can be developed is somewhat greater because of the contribution due to saliency.

2139_Show Effects of Saliency and Saturation.png

Posted Date: 6/28/2013 2:58:01 AM | Location : United States

Related Discussions:- Show effects of saliency and saturation, Assignment Help, Ask Question on Show effects of saliency and saturation, Get Answer, Expert's Help, Show effects of saliency and saturation Discussions

Write discussion on Show effects of saliency and saturation
Your posts are moderated
Related Questions
Bipolar junction transistor: Transistors are so named as they conduct via using both majority and minority carriers. The bipolar junction transistor that is abbreviated as BJT

Establish the relationship between duty ratio and output voltage

Q. What is the basic difference between the weighted resistor and the R-2 R ladder D/A converters?

This assignment concerns the planning of a software development. You are required to plan the software development for a typical microprocessor based, 4-channel temperature control

What is the similarities between a vacuum diode and a triode?

CRM Framework There exist several ways to view CRM framework. Therefore, an operational strategic framework is more relevant to apply CRM in power/electricity business systems

how do i figure up the resistance on Alumel and chromel wire stranded .080 dia 19 stands?

Q. A balanced wye-connected load with a per-phase impedance of 4 + j3  is supplied by a 173-V, 60-Hz three-phase source. (a) Find the line current, the power factor, the total

Find the minimum rate of sampling that must be used to convert the message into digital form: (a) If an audio message has a spectral extent of 3 kHz. (b) If a television sign