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The search for an on-line dynamic security index
Conference proceeding

The search for an on-line dynamic security index

C.O Nwankpa
[Proceedings] 1992 IEEE International Conference on Systems, Man, and Cybernetics, v 1992-, pp 1090-1095 vol.2
1992

Abstract

Power industry Power measurement Power system dynamics Power system measurements Power system security Power system simulation Power system stability Steady-state Stochastic systems Time measurement
The implementation of a power system dynamic security index (DSI) for contingency selection in an online dynamic security analysis environment is addressed. This DSI is based on a stochastic measure of the power system's stability in the presence of various disturbances. This stochastic measure is the mean first passage time (MFPT) of a power system to reach the boundary of its dynamic security region. In other words, the MFPT is a measure of the average time a power system will eventually take to reach its dynamic security limits when affected by a contingency. One of the main advantages of the application of such a measure is the incorporation of not only the dynamic effects but also the steady-state effects of various power system disturbances.< >

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