PSS Modeling and Tuning for Cumberland Plant

Objectives/background/needs: TVA had a large power plant outages due to certain operation conditions.  TVA Generator control data review, current system models used, investigated suitability & effectiveness.  Analytical tuning and evaluate power system stabilizer gain.

Testing for other system conditions. Development of analytical settings/scheme.  PSS tuning training course delivery.

Key deliverables and solution provided: Investigated a serious 500kV line outage due to generation dynamic instability.  Updated models and parameters of the excitation systems and stablizers at four large power plants resulting in improved oscillatory stability.