PROJECT TITLE :

Delay-Dependent Stability Control for Power System With Multiple Time-Delays

ABSTRACT:

Time-delay exists widely in electrical power systems, and is found to own significant effect on the performance of operation and control below sure conditions. It's shown that even a very small delay may destabilize the facility system. Thus, time-delay is of vital concern and should be properly handled, especially within the wide-space measurement and control environment. But, solely few results about the controller design for power system considering multiple time-delays are reported. In this paper, a multiple time-delayed power system model is constructed with power system stabilizer (PSS) considering time-delays. By using Lyapunov stability theory and linear matrix inequality (LMI) method, 2 control schemes are developed for time-varying multiple delayed systems. The proposed controllers guarantee the closed-loop system asymptotic stable with performance. A 2-area four-machine power system and therefore the New England ten-machine 39-bus system are used to demonstrate the effectiveness of proposed methods. The simulation results verify that the designed controllers can improve the management performance significantly.