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Frequency Dip Calculator
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MW loss reference
HZ loss reference
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MW loss
Hz loss
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MW loss reference
Hz loss reference
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= |
MW loss
Hz loss
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Left ratio is the reference ratio based on updated interconnection data and the right ratio is the estimated frequency dip.
Using ratio, the system operator can estimate the frequency dip. Assuming a system operator knows by experience that the loss of 1000 MW unit typically results in 0.2 Hz dip in system frequency. Using ratio he can estimate the frequency dip due to the loss of 800 MW unit. The loss of 800 MW unit will create 0.16 Hz frequency dip to the system. The operator frequency dip versus MW load loss ratio must be updated to reflect the current state of system interconnection. What I meant is due to substation bay addition or deletion or renewable sources interconnection the frequency dip history might need to be adjusted.
Remember ratio is an estimating tool its reliability is largely based on the accuracy of the reference ratio.