Question
An isolated power system with a 600MVA generating unit having M (angular moment of the machine) of 7.6 pu MWpu freq/sec on a machine base
An isolated power system with a 600MVA generating unit having M (angular moment of the machine) of 7.6 pu MWpu freq/sec on a machine base The unit is supplying a load of 400MVA The load changes by 2% for a 1% change in frequency. If the load suddenly increases by 20 MVA.
Determine using a 1000 MVA base
i. Change in frequency Ao (s).
ii. Change in frequency Aco (t).
iii. Final value of change in frequency.
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Modern Control Systems
Authors: Richard C. Dorf, Robert H. Bishop
12th edition
136024580, 978-0136024583
