A power plant comprises three turbine-generators rated 1000 MW, 800 MW and 500 MW respectively. The regulation constant of each generator is 0.05 pu based on its own rating. Each unit is initially operating at one-half of its own rating, when the system load suddenly increases by 300 MW. Calculate the following: a) Per-unit area frequency response characteristic on a 1000 MW system base. b) Steady-state drop in area frequency [CR4] c) The share of the load increase on each generator.
A power plant comprises three turbine-generators rated 1000 MW, 800 MW and 500 MW respectively. The regulation constant of each generator is 0.05 pu based on its own rating. Each unit is initially operating at one-half of its own rating, when the system load suddenly increases by 300 MW. Calculate the following: a) Per-unit area frequency response characteristic on a 1000 MW system base. b) Steady-state drop in area frequency [CR4] c) The share of the load increase on each generator.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter12: Power System Controls
Section: Chapter Questions
Problem 12.5P
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A power plant comprises three turbine-generators rated 1000 MW, 800 MW
and 500 MW respectively. The regulation constant of each generator is 0.05 pu
based on its own rating. Each unit is initially operating at one-half of its own
rating, when the system load suddenly increases by 300 MW. Calculate the
following:
a) Per-unit area frequency response characteristic on a 1000 MW system
base.
b) Steady-state drop in area frequency [CR4]
c) The share of the load increase on each generator.
d) Total load on each generator after the increase in system load.
Assume the reference power setting of each turbine is unchanged.
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