SM PSS1A

Discrete-time or continuous-time single input power system stabilizer type PSS1A

  • Library:
  • Simscape / Electrical / Control / SM Control

Description

The SM PSS1A block implements a single-input PSS1A power system stabilizer (PSS) to maintain rotor angle stability in a synchronous machine (SM). Typically, you use a PSS to enhance damping of power system oscillations through excitation control.

Ports

Input

expand all

Per-unit speed, frequency of the terminal bus voltage, compensated frequency, or electrical power.

Data Types: single | double

Output

expand all

Automatic voltage regulator (AVR) input stabilization signal, as limited by VST_min and VST_max

Data Types: single | double

Parameters

expand all

Power system stabilizer (PSS) forward path gain.

PSS signal conditioning filter coefficient 1.

PSS signal conditioning filter coefficient 2.

Lead time constant 1.

Lag time constant 2.

Lead time constant 3.

Lag time constant 4.

Washout time constant.

Transducer time constant.

Maximum power system stabilizer (PSS) output to the automatic voltage regulator (AVR).

Minimum power system stabilizer (PSS) output to the automatic voltage regulator (AVR).

Time between consecutive block executions. During execution, the block produces outputs and, if appropriate, updates its internal state. For more information, see What Is Sample Time? (Simulink) and Specify Sample Time (Simulink).

For inherited discrete-time operation, set the sample time to -1. For discrete-time operation, set the sample time to a positive scalar. For continuous-time operation, set the sample time to 0.

References

[1] IEEE Recommended Practice for Excitation System Models for Power System Stability Studies. IEEE Std 421.5-2016. Piscataway, NJ: IEEE-SA, 2016.

[2] Kundur, P. Power System Stability and Control. New York, NY: McGraw Hill, 1993.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Introduced in R2018b