PSS1A

PSS1A model

This article is incomplete, some sections must be written.

Context

This power system stabilizer model appears in the IEEE Std 421.5-2016 (of Electrical & Engineers, 2016). It has been reproduced identically in the IEC 61970-302:2024 version (Commission, 2024). This model was introduced in the previous standard version (2005).

Model use, assumptions, validity domain and limitations

To be completed

Model input and output

The input variables are either :

Variable Description Units
omegaPu measured angular frequency pu (base omegaNom)
PGenPu active power pu (base SnRef)

The output signal is VPssPu in pu (base UNom).

Model parameters

Parameter Description Units
A1 First coefficient of notch filter s
A2 Second coefficient of notch filter \(s ^ 2\)
Ks Gain of power system stabilizer pu
t1 First lead time constant s
t2 First lag time constant s
t4 Second lag time constant s
t5 Washout time constant s
t6 Transducer time constant s
VPssMaxPu Maximum voltage output of power system stabilizer pu (base UNom)
VPssMinPu Minimum voltage output of power system stabilizer pu (base UNom)
SNom Nominal apparent power MVA (only if PGenPu is the input signal)

Model diagram

PSS1A diagram

Open source implementations

This model has been successfully implemented in :

Software URL Language Open-Source License Last consulted date Comments
Dynawo Link Modelica MPL v2.0 24/05/2024  

References

  1. of Electrical, T. I., & Engineers, E. (2016). IEEE recommended practice for excitation system models for power system stability studies . IEEE Std 421.5-2016. https://home.engineering.iastate.edu/ jdm/ee554/IEEEstd421.5-2016RecPracExSysModsPwrSysStabStudies.pdf
  2. Commission, I. E. (2024). Energy management system application program interface (EMS-API) Part 302: Common information model (CIM) dynamics. IEC 61970-302. https://webstore.iec.ch/preview/info_iec61970-302%7Bed2.0%7Db.pdf
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