Improved power system dynamic performance using SMES for frequency excursion

Abstract EN

This paper analyses a comparative transient performance of six types of single machine power system.

The six types of system configurations are viz.

(i) AVR loop with Proportional Integral controller (PI) combined with AGC loop.

(ii) AVR loop with single input CPSS combined with AGC loop.

(iii) AVR with PI combined with SMES unit based AGC loop.

For AGC loop both thermal unit and hydro unit are individually consider.

(iv) AVR with CPSS combined with SMES unit based AGC loop.

For AGC loop both thermal unit and hydro unit are individually considered.

(v) AVR with FLC combined with FLC based AGC loop.

For AGC loop both thermal unit and hydro unit are individually considered.

(vi) AVR with FLC combined with SMES unit based AGC with FLC loop.

For FLC based AGC loop both thermal unit and hydro unit are individually considered.

The Thermal unit is either single or double reheat turbine.

Hydro unit is considered with mechanical or electrical governor.

Proportional Integral, Conventional power system stabilizer and fuzzy controller is provided in AGC loop.

It is shown that the SMES based fuzzy controlled AGC loop along with fuzzy controlled AVR assist better transient performance of the power system in all cases under different operating conditions.