 Abstract—Many natural and manmade dynamical systems that are modeled as large nonlinear multi-oscillator systems like power systems are hard to analyze. For such systems, we propose a nonlinear modal decoupling (NMD) approach inversely constructing as many decoupled nonlinear oscillators as the system’s oscillation modes so that individual decoupled oscillators can be easily analyzed to infer...

Power-system stability improvement by simultaneous tuning of power system stabilizer (PSS) and a Static Var Compensator (SVC) based damping controller is thoroughly investigated in this paper. Both local and remote signals with associated time delays are considered in the present study. The design problem of the proposed controller is formulated as an optimization problem, and differential evol...

Abstract This paper examines how the damping capability can be improved if inter-area oscillations occur by combining control strategies in hydropower plants. First, challenges of plants, such as water hammer effect, are discussed. In a single-machine infinite bus system (SMIBS), use Power System Stabilizer (PSS) generator excitation and governor path well combination both examined for their ef...

This article improves the coordinated passivation control strategy of a single machine infinite bus system with generator excitation and thyristor controlled series compensation. First, in traditional strategy, class − κ functions an integral term are introduced to improve convergence speed reduce steady-state error system. Furthermore, adaptive method based on sliding mode is used design laws ...

We propose an analytical construction of observable functions in the extended dynamic mode decomposition (EDMD) algorithm. EDMD is a numerical method for approximating spectral properties Koopman operator. The choice fundamental application to nonlinear problems arising systems and control. Existing methods either start from set dictionary look subset that best fits underlying dynamics or they ...

starting from two-dimensional (2d) equations of motion, discretized formulations for transient behavior of soil-structure interaction problems have been derived. two different dynamic infinite elements taking into account single and two-wave types are presented in transformed space. by coupling the infinite elements with standard finite elements, an ordinary finite element procedure is used for...