Advanced Power Systems-Tutorial-7.pdf - EEET2403 Advanced Power Systems Tutorial 7 Frequency Control Question 1 A 50 Hz 100 MW turbo generator has a

Advanced Power Systems-Tutorial-7.pdf - EEET2403 Advanced...

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1 AV /2018 EEET2 403 Advanced Power Systems Tutorial 7: Frequency Control Question 1 A 50 Hz, 100 MW turbo generator has a governor droop characteristics (regulation) of 4% from no load to full-load. (a) What is the frequency of the supply if a load of 70 MW is put on the generator when the set point power of the governor is 100 MW (its full load capacity). [Ans. 50.60 Hz] (b) The governor set point power is now adjusted to 70 MW without altering its droop characteristic. If the load suddenly increases to 80 MW, what is the frequency of operation under free governor control? [Ans. 49.80 Hz] Question 2 A 50 Hz, 100 MW turbo generator A has a governor droop characteristics (regulation) of 4% from no load to full-load. Another 50 Hz, 200 MW turbo generator B also has a governor droop characteristics (regulation) of 4% from no load to full-load. Both turbine governors are set for full load generation at 50 Hz and operate in parallel. (a) Under free governor action, what is the frequency when the combined load is 150 MW and what are the loads on generators A and B? [Ans: 51.0 Hz, 50 MW, 100 MW]
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