in this paper, optimum location of power system stabilizers in order to damp inter-area oscillations has been investigated by using modal series method. nonlinear effects grow in dynamical behaviors of heavily loaded stressed power systems significantly. hence linear based methods and techniques no longer present clear and exact response of the systems. in this article by defining new nonlinear...

How does the development of one transport mode influence the development of another? This paper uses time-series data to test whether inter-model network externalities influenced the development of road, canal, and port infrastructure in England from 1760 to 1830. The main finding is that road development had a positive effect on canal development. The results suggest that the option value of w...

In this paper, a novel approach proposed for structural damage detection from limited number of sensors using extreme learning machine (ELM). As the number of sensors used to measure modal data is normally limited and usually are less than the number of DOFs in the finite element model, the model reduction approach should be used to match with incomplete measured mode shapes. The second-order a...

From a theoretical perspective, this paper develops a systematic approach to analyze the transient characteristics of the low-voltage ride-through (LVRT) in three-phase grid-connected converter with LCL filter by using the nonlinear modal series method. Firstly, the mathematical model and the corresponding second order modal series model of the system are described. And then, the simulation res...

Abstract The power load prediction can ensure the supply and dispatch, which will be useful for market participants to plan make strategic decisions enhance reliability, save operation maintenance costs. Short-term data series have obvious approximate periodicity, while long-term show variability dynamic features. In addition, time of various modalities, such as reports production management da...

The paper presents how direct estimation of the modal coordinate time series can be performed using a time domain subspace based system identification method. The method overcomes the traditional limitation on maximum number of modal coordinates to be estimated being less or equal to the applied number of sensors. This is achieved by utilizing the information on system order inherent in the sta...

This paper is the first in a series of three related papers on modal methods in interpretability logics and applications. In this first paper the fundaments are laid for later results. These fundaments consist of a thorough treatment of a construction method to obtain modal models. This construction method is used to reprove some known results in the area of interpretability like the modal comp...

Heavily loaded, stressed power systems exhibit complex nonlinear dynamic behaviors which can not be analyzed and described accurately by conventional linear methods such as eigen-analysis. Normal form of vector fields, a well established mathematical method, and Modal Series technique, a relatively newly established approach have been used as tools to analyze, characterize and quantify some of ...