Testbed for Generator Torque Oscillations

Disturbance on power systems such a faults, large variations in power generation or power consumption can cause oscillations in phase angle, frequency, voltage magnitude, which in turn combine to result in oscillations in real and reactive power generation. The response of synchronous generators can be characterized using the solution to the swing equation for most cases, which represents the angle variation for very small changes in frequency:

This is driven by the transient mismatch between mechanical input power and electrical output power and the resulting response of the electromechanical system.

=Project Definition= Conventional wisdom is that the generator will slip a pole if the system swings any further. However, recent field data has demonstrated that the some machines have been not done so and their excitation control has pulled them back to stability.

Background
A typical response for a stable swing would exhibit damped oscillations:

Specifications
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Project Schedule



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Client Interview