Power System Network Matrices – I

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22Power System Analysis2Power System Network Matrices various terms used in Graph Theory are presented in this chapter. Formulation of differentnetwork Matrices are discussed. Primitive impedance and admittance Matrices are explained. Thischapter also deals with the formulation of DEFINITIONS IN GRAPH THEORYAgraph shows the geometrical interconnection of the elements of a is any subset of elements of the is a subgraph of connected elements with not more than two elements connected to any graph is connected if and only if there is a path between every pair of each element of the connected graph is assigned a direction then it is an oriented representation of a Power System and the corresponding graph and oriented graph are shownin Figs. , and is a connected subgraph of a connected graph having all the nodes of the graph but withoutany closed path (or) loop.

matrix (C). The elements of this matrix are as follows: c1 ... If there is no mutual coupling between the elements, the primitive admittance matrix y can be obtained by inverting the primitive impedance matrix z. The matrices z and y are diagonal matrices. In the case, the self-impedances are equal to the reciprocals of the corresponding self ...

  Matrix, Admittance, Admittance matrix