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Variable Power Reaching Law-Sliding Mode Controllers for Partial Linearized SMIB Power Systems

For synchronous generators (SGs), a variable power reaching law-sliding mode controller (VPRL-SMC) is proposed in this study to improve the performance of transient stability in a small power system. The theory of feedback linearizing controller (FBLC) and SMC are integrated in this work to construct the proposed excitation controller. Using the partial FBLC, the nonlinear model is first transformed into a linearized reduced-order model. The VPRL-SMC is then used to obtain the control input for the excitation system. As a result, the suggested excitation controller will be able to improve transient stability more quickly while also avoiding the need to measure the rotor angle because the speed deviation will be employed as an output. To ensure the system's overall stability, the control Lyapunov function theory is used. Finally, the MATLAB platform is used to put the proposed controller's theoretical notion into practice. The simulation result is compared to the existing controller to demonstrate the suggested controller's superiority.