Me. Khan et R. Billinton, COMPOSITE SYSTEM SPINNING RESERVE ASSESSMENT IN INTERCONNECTED SYSTEMS, IEE proceedings. Generation, transmission and distribution, 142(3), 1995, pp. 305-309
Deterministic methods to evaluate unit commitment and spinning reserve
requirements cannot explicitly recognise the stochastic nature of a p
ower system. Probabilistic techniques can, however, be used to incorpo
rate a wide range of stochastic system parameters. The usual technique
s of probabilistic unit commitment in an interconnected system conside
r the tie-line constraints but not the transmission facilities within
the systems. In a real power system the transmission facilities within
the systems have limits and do fail. Units committed from only probab
ilistic generation studies, therefore, provide optimistic values. In t
he paper, the usual techniques of unit commitment are extended to calc
ulate a risk value from a composite system point of view. The effect o
n the risk value of rapid start and hot reserve units are considered.