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Against the background of 1000 kV AC Pilot Project from Jindongnan to Jingmen via Nanyang which has been completed in January 2009, based on accurate modeling of the nonlinear equipments such as autotransformer and shunt reactor in 1000 kV system, the harmonic characteristics of 1000 kV system are calculated and analyzed in PSCAD/EMTDC. Simulation results show that for the 1000 kV system, the total...
In this paper, comprehensive testing of the power quality in a typical utility grid in existence of the electric railway traction load is taken, the measurement and simulation results are analyzed, it is verified that the electrified railway grid is an important factor in pollution of typical utility grid. Firstly in this paper, the typical utility power grid and traction power supply system model...
With the rapidly developing of electrified railways, the adverse effects on the public power grid brought by traction power-supply system have been increasingly taken into account by railway and electricity department. In order to analyze the harmonics influence caused by traction power-supply system, the models based on PSCAD/EMTDC of typical traction power-supply system and public power grid have...
With the rapidly developing of electrified railways, the adverse effects on the public power grid brought by traction power-supply system have been increasingly taken into account by railway and electricity department. In order to analyze the harmonics influence caused by traction power-supply system, the models based on PSCAD/EMTDC of typical traction power-supply system and public power grid have...
This paper proposes a new method, called PLSR (partial least-squares regression), which is used for assessing harmonic impedance and the harmonic emission level at the point of common coupling (PCC). Utilizing the signals of harmonic voltage and harmonic current measured synchronously at PCC, regression coefficients are worked out through partial least-squares algorithm. By separating and filtering...
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