Object-oriented design for power system applications

Abstract

IEEE A sound design method is based upon a sound theoretical foundation, yet it offers degrees of freedom for artistic innovation. In the objectoriented paradigm, the world is viewed as a collection of objects interacting with each other to achieve a meaningful behavior. The design perspective provided in this article can be used for many applications, such as power system state estimation and optimal power flow (OPF), and the sparse matrix class can be developed further to include eigenvalue analysis. As such, the architecture presented in this article is scalable. Mathematical Modeling Tools Digital simulation of power system applications (PSA) has been a focus of research for the last 5 decades. Considerable literature has dwelt upon development of fast and numerically stable algorithms, applicable to large systems for a variety of applications. The domain of applications can be classified into steady-state analysis, dynamic analysis, and real-time decision making/automation. Steady-state analysis problems arise in system planning as well as operation of a power system. Such software is used either for offline analysis or online application in energy control centers. Some typical applications are load-flow analysis, shortcircuit analysis, relay coordination, network topology processing, observability analysis, power system state estimation, OPF, and contingency analysis. The other category of problems involving dynamics include transient stability and small signal stability. Mathematical modeling tools used in the two domains are distinct. Problems in steady-state analysis essentially require "good quality" large sparse linear system solvers (LSS), sparse matrix optimization, and graph theoretic computational tools. Problems involving dynamics require eigenvalue analysis, time domain simulations of differential equations, etc. This article focuses on applications belonging to the first category.

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Component-based development applied to energetic operation planning of hydrothermal power systems

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Design of generic direct sparse linear system solver in C++ for power system analysis

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