Power System Stabilizer Test and Measurement
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Power system stabilizer testing consists mainly of frequency analysis of power generator systems. The CoCo-80X can be used to evaluate the performance and stability of power generator systems. By determining the phase-frequency characteristics of the excitation control system, the PSS can be tuned to improve small-signal stability.
PSS tunings must be performed whenever an excitation system is put into operation or periodically during system operation. The PSS tuning process involves several FRF measurements:
Establish inter-area modes of oscillation
Establish local modes of oscillation
Measure frequency response of PSS
Verify local mode damping has improved
Standard PSS tests measure parameters such as active power, reactive power, and generator terminal voltage fluctuation. The CoCo-80X now supports a new software application dedicated to power system stabilizer measurements.
Measure and optionally record 1 to 4 analog dynamic response channels simultaneously
Acquire, display, and save FFT measurements (including FRF and coherence)
Generate test signal output
Generate PSS reports