A single area consisting of two generating units: GI: 600 MVA, Rl=60/0 (On machine base) (h: 500 MVA, R2=40/0 (On machine base) C04 Units are operating in parallel, sharing 900MW at nominal frequency. Unit I supplies 500MW, Unit 2 supplies 400MW at 60Hz. The load is increased by 90MW. Find the steady-state frequency deviation and new generation on each unit when
 

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a) Assume there is no frequency dependent load, i.e. D=0. Find the steady-state frequency deviation and the new generation on each unit. b) The load varies 1.5% for every 1% change in frequency, i.e. D-1.5. Find the steady- state frequency deviation and the new generation on each unit. c) Use MATLAB to plot the per unit speed characteristics of each governor in parts (a) and (b). a) Assume there is no frequency dependent load, i.e. D=0. Find the steady-state frequency deviation and the new generation on each unit. b) The load varies 1.5% for every 1% change in frequency, i.e. D-1.5. Find the steady- state frequency deviation and the new generation on each unit. c) Use MATLAB to plot the per unit speed characteristics of each governor in parts (a) and (b).

Answer rating: 100% (QA)

unit 1 unit I unit 2 APg Rating 500 MUA GOO MUA REQ 90Mw A APg of Req 400MW 500 MW R R ... View the full answer