Analysis of Hybrid Tilt Integral Derivative Controller for Multi area Power System with Real Time Simulation

摘要

In an interconnected power system frequency balance should be maintained with the varying load in order to assure the quality and reliability of Power system. This is achieved through automatic generation control (AGC). In the present study a hybrid controller which is a combination of classical and fractional order controllers is successfully implemented for load frequency problem. Present research work suggests a hybrid tilt-integral-tilt-integral-derivative (TI-TID) controller for two-area thermal power plant with reheat turbine to investigate the control problem in AGC. The gains of the controllers are optimized with differential evaluation (DE) technique. The MATLAB simulation results validate that this approach is superior than some recent approaches for AGC problem. To further analyze the system in a real time environment, Hardware-in-loop (HIL) simulation has been carried out on OPAL-RT(OP5700) and results are compared with MATLAB simulation. HIL is gaining popularity because system complexities are increasing day by day and it is the standard for testing any complex control system. With the MATLAB results and real time results it is evident that this hybrid controller gives improved performance when compared with some recent results for the same control problem applied to similar model using different control structures and optimization algorithm.