Linear Coupling Of The Tcr Nonlinear Characteristics Of The Admittance Matrix Model

Power System Harmonics; TCR; Harmonics Modeling; Switching function; Harmonic analysis; Harmonic power flow demonstrate the algorithm and performance of the proposed method. Since the model for the nonlinear TCR element is linear, a linear network solution in harmonic domain is sufficient to obtain the harmonic power flow results. This paper also investigates the impact of high harmonic voltage distortions on the accuracy of the coupled admittance model and the associated harmonic power flow results. An iterative method is proposed to improve the original linear network solution method for cases involving very high amount of harmonic voltage distortions. Single and three phase harmonic power flows have been calculated through this algorithm, all the results have been confirmed by the waveform comparison of simulation.