Treffer: Practical application of the Monte Carlo method to determine steady-state stability limits of power systems.

This paper discusses results of application of Monte Carlo simulation to determine the total transmission capacity (TTC) of the interconnected transmission system. An example of TTC determination for the 500 kV «Bratsk – Krasnoyarsk» electric power transmission corridor in the Siberian power system is considered. It is shown that the Monte Carlo method of TTC determination, firstly, can be more effective than the subjective selection (expert evaluation method) of factors influencing the static stability limits, secondly, it can provide new useful information: for example, information on the probability of underutilization of the transmission capacity that can be used for validation of the TTC values given in the system operators' guides. The technique for obtaining power flow cases by means of random variation of influencing factors is proposed, implemented as a software module, and tested. Program implementation is based on computational core of power flow analysis software – RastrWin and a module written in Python language to run power flow analysis according to the developed algorithm. The obtained results show that Monte Carlo simulation can help to evaluate the probability of stability limit violation at different topology conditions using TTC from guidance documents. [ABSTRACT FROM AUTHOR]

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