Obtenção do Ponto de Máximo Carregamento de Sistemas Elétricos de Potência utilizando Métodos Desacoplados de Newton (Obtaining the Maximum Loading Point of Electric Power Systems using the Decoupled Methods of Newton)

Alfredo Bonini Neto (bonini@tupa.unesp.br)1, Elisabete de Mello Magalhães (elisabete.magalhaes@yahoo.com.br)2, Dilson Amancio Alves (dalves@dee.feis.unesp.br)2


1Faculdade de Ciências e Engenharia - UNESP - campus de Tupã
2Faculdade de Engenharia - UNESP - campus de Ilha Solteira

This paper appears in: Revista IEEE América Latina

Publication Date: Jan. 2016
Volume: 14,   Issue: 1 
ISSN: 1548-0992


Abstract:
This paper presents a proposed Newton decoupled method modification (simultaneous resolution algorithm and alternate) with the addition of an equation line passing through of a point in the plane determined by the variables: loading factor and the nodal voltage magnitude of a bus k. The use of this parameterization technique eliminates the singularity of Jacobian matrix and all the consequent problems of ill-conditioning, increasing also the group of voltage variables that can be used as parameter and therefore, obtain the complete tracing of P-V curves and the maximum loading point of electric power systems. Another important factor that will be presented in this paper is the reduction of the CPU time that the decoupled methods provide. A comparison of the simultaneous and alternate algorithm will be presented.

Index Terms:
Continuation method, Decoupled load flow, Parameterization techniques, Maximum loading point, P-V curve.   


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