What is modeling of synchronous machine?
Modeling of synchronous machines is essential for power systems analyses. As a gen- erator, it determines the electric characteristics of the power system, especially for the system security, the ability to withstand sudden disturbances such as faults, switching, and load changes [9–11].
What is basic equation of synchronous machine?
Eph = Average value x form factor Equation (1) shown above is the EMF equation of the Synchronous Generator. The Coil Span Factor is defined as the ratio of the induced emf in a coil when the winding is short-pitched to the induced emf in the same coil when the winding is full pitched.
What is d axis and q axis?
The d axis, also known as the direct axis, is the axis by which flux is produced by the field winding. The q axis, or the quadrature axis is the axis on which torque is produced. By convention, the quadrature axis always will lead the direct axis electrically by 90 deg.
What are the parameters needed for modeling of synchronous machine?
The resistance and reactance of the stator, rotor and magnetizing branch, field and damper windings are major parameters of the synchronous machine.
What is synchronous generator?
A synchronous generator is a synchronous machine which converts mechanical power into AC electric power through the process of electromagnetic induction. Synchronous generators are also referred to as alternators or AC generators. The term “alternator” is used since it produces AC power.
What is V curve and inverted V curve?
What is V Curve and inverted v curve? The graphical representation of armature current Ia vs field current If is called V-curve since the final view looks like English letter V. At the same time the power factor vs field current is called inverted V-curve of a synchronous motor.
What is the output equation of synchronous machine?
1 SYNCHRONOUS MACHINES Output Equation Q = m Eph Iph 10-3 = 11 Bave ac Kw x 10-3 D2L ns = Co D2L ns Where Co = output coefficient (see Unit -4 for derivation) D and L are separated using L/τ ratio or maximum specified peripheral speed of the rotor.