neural network based load frequency control for restructuring
TRANSCRIPT
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Neural Network Based Load Frequency Control F
Restructuring Power Industry
Sushil Sharma Kharel
068 BEL 346
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Introduction
When load changes the system changes from normcondition
Conventional controller are set to some level forcomromise the demand
!"" controller is roosed #hose action is $ased of change of fre%uency than change in fre%uency acase of conventional controller
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-Slo# in &rocess'Li(ely to have transients and overshoot
Conventional Controller
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Conventional Controller
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!ggregator )unction
-Sigmoidal and Gaussianfunctions are used asactivation function
-Sigmoidal for accurateinterpolation
-Gaussian forextrapolation ability
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Feed Forward BackPropagation
Contains of 3 inut *df+dh+dt, + - hidden and a single outut*d&ref
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!datation of "eural "et#or( Controller
.*n, reresents the
characteristic oflant model /df*n,d&t*n, d&h*n,
C comares .*n, to.steady stateto generate thecontrol signal
Control signal u*n, isd&ref to oerate thetur$ine
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!datation of "eural "et#or( Controller
!t each time ste
1*n2, is evaluated$ased on d&e+u*n,and 1*n,
!t t50 + C ta(es 1*0, generate u*0,
!t t5" + .*",7.steady'
state+error is $ac(roagated for#eight adustment
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!earning "lgorit#m
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!"" in single area system
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!"" in t#o area system
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Conclusion
$on-linear and dynamic be#avior can be lineari%more accurately
!ess execution time due to less number of #iddelayers
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Thank You