An Ant Colony Optimization Method with Local Search for Stability Analysis of Linear Time-Invariant Time-Delay Systems

A hybrid search method based on Ant Colony Optimization for Continuous Domains ( R ACO ) and the Nelder-Mead Simplex algorithm is proposed tocalculate the stability margin of linear time-invariant time-delay systems. The effectiveness of the Nelder- Mead Simplex procedure is combined with the globalsearch power of the R ACO method to obtain the stability margin of linear time-invariant time-delay systems. Also, the problem is formulated in a way thatresults in a constant-dimension search space (the complex plane) regardless of the order of the system. Simulation results indicate successful assessment of stability for the systems under examination

کلیدواژه های An Ant Colony Optimization Method with Local Search for Stability Analysis of Linear Time-Invariant Time-Delay Systems:

Time-delay systems ، stability margin calculation ، hybrid evolutionary algorithms ، Nelder-Mead simplex algorithm ، ant colony optimization