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This paper presents a novel, three-phase hybrid time/frequency methodology for modelling of nonlinear components. The algorithm has been implemented in the DIgSILENT Power Factory software using the DIgSILENT Programming Language (DPL), as a part of the work described in [1]. Modified HVDO benchmark model is used as a basis for its implementation. First, the linear network part is replaced with an...
In order to assess the performance of distribution system under normal operating conditions with large integration of renewable energy based dispersed generation (DG) dispersed generation, probabilistic modeling of the distribution system is necessary in order to take into consideration the stochastic behavior of load demands and DG units such as wind generation and combined heat and power plant generation...
In this paper, GPS-synchronized harmonic measurements performed on the transmission network of the Danish TSO Energinet.dk are presented. The purpose of the measurements was to verify a computer model of the network. The selected verification method was based on determination of transfer harmonic impedance by switching a series component that contains a shunt branch [1], [2]. Harmonic currents and...
In this paper two methods of validation of transmission network harmonic models are introduced. The methods were developed as a result of the work presented in W. Wiechowski (2006). The first method allows calculating the transfer harmonic impedance between two nodes of a network. Switching a linear, series network component that links the nodes causes a variation of the background harmonic voltage...
This paper demonstrates the results of implementation and verification of an already existing algorithm that allows for calculating saturation characteristics of single-phase power transformers. The algorithm was described for the first time in 1993. Now this algorithm has been implemented using the DIgSILENT programming language (DPL) as an external script in the harmonic domain calculations of a...
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