ij - POWERLAB - Univerza v Mariboru
ij - POWERLAB - Univerza v Mariboru
ij - POWERLAB - Univerza v Mariboru
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Obratovanje elektroenergetskih omrež<strong>ij</strong> - stabilnost stran 35° ° ' ''δ 0= 26.243337 = 26 1436 = 0.4580 rad°( )P = 1.0 = P = 1.6026sin 180 − δδ mmeh elc m= = =° ° ' ''141.3922 141 2332 2.4678 radIzračunajmo površini A 1 in A 2 , ki sta sorazmerni porastu oziroma zmanjšanju kinetičneenerg<strong>ij</strong>e:1δk0δ( P P ) ( )∫ ∫kA = − ⋅ dδ = 1−0.9008sinδ ⋅ dδ = δ + 0.9008cosδ−1.26602δδmmeh elb k k0.45802.4678( P P ) ( )∫ ∫A = − ⋅ dδ = 1.6026sinδ −1 ⋅ dδ = δ + 1.6026cosδ−1.2154δkelc meh k kδkPovršini izenačimo in izračunamo kritični kot odklopa:A= A1 2δ + 0.9008cosδ − 1.2660 = δ + 1.6026cosδ−1.2154k k k kcosδ=−0.0721δ kk= = =° ° ' ''94.1346 94 85 1.6430 rad
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