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Journal ArticleDOI

Object-oriented programming for flexible software: example of a load flow

TLDR
The basic elements of object-oriented programming (OOP) are introduced and the advantages of this software approach for energy management systems are demonstrated with an implementation of the load flow function as a concrete example.
Abstract
The basic elements of object-oriented programming (OOP) are introduced. The advantages of this software approach for energy management systems are demonstrated with an implementation of the load flow function as a concrete example. Object-oriented software is shown to be very flexible. Object-oriented class libraries enable the programmer to reuse the code efficiently. OOP emphasizes programming on a higher, conceptual level. The message passing algorithm of OOP supports descriptive programming. The object-oriented model is very similar to the frame-based knowledge representation used in artificial intelligence. >

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Citations
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Proceedings ArticleDOI

Implementation of Grid Fault Diagnosis Expert System

TL;DR: Fault diagnosis expert system obtains the operation of power grid by monitoring the change of dynamic database and makes the diagnosis results be displayed to the dispatcher in a specified format so as to make the diagnosisresults be as the reference of fault recovery processing.
Journal ArticleDOI

Simulation Modeling for Electrical Switching System of Hydropower Station

TL;DR: In this paper, a simulation modeling method for the electrical switching system of hydropower station, which is a sub-topic for Hydropower Station Simulation Training System, is proposed. But the simulation model is limited to a single circuit breaker and each specific action of the switch process is not same, so the modular modeling method is described to solve the problem.

Object-oriented data model for computer aided design in electrical engineering

I. Salomie
TL;DR: In this paper, the authors specify a set of concepts and abstractions of object-oriented nature, together with the structural relations among them, as the theoretical and practical bases for designing ELECTROO, an Object-Oriented CAD environment in Electrical Engineering.
Journal ArticleDOI

Dynamic Equivalent Software Design for AC/DC Hybrid Power System

TL;DR: In this article , a new software design method of dynamic equivalents for the AC/DC hybrid power system is proposed, which follows the design routine of the separateness of modules and data switching, and flexible extensibility.

Object Oriented Set Theoretic Implementation of Minimum Degree Algorithm

TL;DR: An OO based implementation of MDA, for large scale systems, considering enhancements like mass elimination, multiple elimination is described, and relevant data structure and efficient implementation within OO framework is developed.
References
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Journal ArticleDOI

Optimal sizing of capacitors placed on a radial distribution system

TL;DR: In this paper, a nonlinear programming problem for capacitors placed on a radial distribution system is formulated and a solution algorithm is developed to find the optimal size of capacitors so that the power losses will be minimized for a given load profile while considering the cost of the capacitors.
Journal ArticleDOI

Optimal Power Flow By Newton Approach

TL;DR: In this paper, a direct simultaneous solution for all of the unknowns in the Lagrangian function on each iteration is proposed, where each iteration minimizes a quadratic approximation of the Lagrangeian.
Journal ArticleDOI

Direct solutions of sparse network equations by optimally ordered triangular factorization

TL;DR: With this method, direct solutions are computed from sparse matrix factors instead of from a full inverse matrix, thereby gaining a significant advantage in speed, computer memory requirements, and reduced round-off error.
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Sparse Vector Methods

TL;DR: The efficiency of the sparse vector methods is verified by tests on a 156-bus, a 1598-bus and a 2265-bus system and the new methods are significantly faster than the established sparse matrix techniques.
Journal ArticleDOI

Extending a database system with procedures

TL;DR: This paper reports on the extensions for one particular query language and data manager and gives performance figures for a prototype implementation of this construct, and suggests that more powerful database systems can be built by supporting database procedures as full-fledged database objects.
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What is knowledge representation in artificial neural network?

The object-oriented model is very similar to the frame-based knowledge representation used in artificial intelligence.