Siemens Power Technologies International
Model Validation using PSS®E
Playback Model
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PSS®E 34.1
PSS®E Playback Model (PLBVFU1)
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PSS®E Playback Model
PLBVFU1 overview
• This model plays back a known set of voltage and frequency signals.
• The PLBVFU1 model acts as a generator model. In using this generator model,
do not attach an AVR or governor model to the machine associated with the
PLBVFU1 model.
• The played-in voltage and frequency signals must be described in a file as
shown below, with each sample described in a separate record and the values
in each line separated by spaces or commas:
Time, voltage, frequency
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PSS®E Playback Model
PLBVFU1 overview
• The file containing the measurement has to be supplied in a file with an
extension “.plb”. The file name (without the “.plb” extension) has to be less than
or equal to 12 characters long. This file has to exist in the working folder. If the
“plb” file is not found, the PLBVFU1 model will keep the internal voltage and
frequency fixed at the initial value (i.e., the playback feature will be ignored).
• The voltage signal which is played back is the internal (Thevenin) voltage of the
playback generator. The ZSORCE of the generator used to represent the
PLVFBU1 model should be non-zero.
• The sampled voltage and frequency values may be smoothed via a first order
block with time constants Tv (for voltage signal) and Tf (for frequency signal).
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PSS®E Playback Model
Playback Model (voltage signal)
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PSS®E Playback Model
Playback Model (frequency signal)
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PSS®E Playback Model
Playback Model testing
Unit to be
tested
Playback generator
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PSS®E Playback Model
Playback Model – PMU data vs. PSS®E simulation
results
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PSS®E Playback Model
Conclusion
• Playback model will be a valuable tool for Model validation – MOD-026, -027
• Model will be available in PSS®E version 34.1
• The model is supplied as part of PSS®E installation; therefore, use of this
model will not require compilation and link.
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Thank You
Jay Senthil, Ph.D
Senior Staff Engineer
Siemens PTI
400 State Street, Schenectady, NY
Phone: +1.518.395.5013
email:
jayapalan.senthil@siemens.com
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