EE 8001 IV/IV B.Tech DEGREE EXAMINATION,MARCH,2015 Eighth Semester ELECTRICAL AND ELECTRONICS ENGINEERING POWER SYSTEM OPERATION AND CONTROL Solutions & Scheme Part-A is compulsory PART-A 10×1=10M a . Draw the Heat rate characteristic curve b . Write the Transmission Loss Formula B-coefficients General form For 3 plants P L = P 1 2 B 11 + P 2 2 B 22 + P 3 2 B 33 + 2P 1 P 2 B 12 + 2P 2 P 3 B 23 + 2P 1 P 3 B 13 c . Represent the speed governing system with a block diagram d . How optimal control can be determined in case of LFC problem? For a given load, the contribution from each unit and each plant is to be determined so that the cost of power delivered is minimum
EE 8001IV/IV B.Tech DEGREE EXAMINATION,MARCH,2015Eighth
Semester
ELECTRICAL AND ELECTRONICS ENGINEERING
POWER SYSTEM OPERATION AND CONTROLSolutions & SchemePart-A
is compulsory
PART-A 101=10Ma . Draw the Heat rate characteristic curve b .
Write the Transmission Loss Formula B-coefficients General form
For 3 plants
PL = P12 B11 + P22 B22 + P32 B33 + 2P1P2 B12 + 2P2P3 B23 + 2P1P3
B13c . Represent the speed governing system with a block diagram d
. How optimal control can be determined in case of LFC problem? For
a given load, the contribution from each unit and each plant is to
be determined so that the cost of power delivered is minimume .
What is the reactive power control significance in synchrnous
machine?
When ,E cos>V ,Then the machine is over excited, machine
generates reactive power i.e it acts as a capacitor
