A thyristor controlled series compensator model for the power flowsolution of practical power networks

摘要

A new and comprehensive load flow model for the thyristorncontrolled series compensator (TCSC) is presented in this paper. In thisnmodel the state variable is the TCSC's firing angle, which is combinednwith the nodal voltage magnitudes and angles of the entire network in ansingle frame-of-reference for a unified iterative solution through anNewton-Raphson method. Unlike TCSC models available in the opennliterature, this model takes account of the loop current that exists innthe TCSC under both partial and full conduction operating modes. Also,nthe model takes proper care of the resonant points exhibited by the TCSCnfundamental frequency impedance. The Newton-Raphson algorithm exhibitsnquadratic or near-quadratic convergence characteristics, regardless ofnthe size of the network and the number of TCSC devices