Power System Load Flow Analysis
This rigorous tutorial is aimed at both power system professionals and electrical engineering students. Breaking down the complexities of load flow analysis into a series of short, focused chapters, the book develops each of the major algorithms used, covers the handling of generators and transformers in the analysis process, and details how these algorithms can be deployed in powerful software. Having read the book, and EE student or engineer will have all the tools necessary to predict load usage and prevent overloads, blackouts, and brownouts.
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Chapter 2 The LoadFlow Problem
Chapter 3 Reference System
Chapter 4 Jacobi Method
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acobian AP and AQ base quantities BkjFj Busbar 4 Busbar busbar conditions busbar voltages Calculate busbar Calculate values calculated voltages Cartesian coordinates convergence deﬁned derived diagonal elements equations equivalent circuit fast decoupled method Figure ﬁnal ﬁrst ﬁxed Flowchart form system admittance Gauss-Seidel Method GkjFj injected current Invert itera Iterative Method J'Ik Jacobi method line ﬂows Load Flow load-ﬂow analysis load-ﬂow problem load-ﬂow techniques matrix inversion MVAr Newton-Raphson method number of iterations off-diagonal elements Original Reference System P(MW per-unit system Polar Coordinates power ﬂow Q(MVAr reactance reactive power real power Reference System Including secondary voltage shown in Fig shunt admittance simpliﬁed slack busbar SLOAD Solution for Reference speciﬁed starting value system admittance matrix System Busbar System Including OLTC system of Fig system voltages tap-changing tolerance VAbase values of AP vector voltage angles voltage magnitude Ykjvj Z-matrix method