Q10. A 50 Hz synchronous generator having an internal voltage 1.2 pu, H = 5.2 MJ/MVA and a reactance of 0.4 The is connected to an infinite bus through a double circuit line, each line of reactance generator is delivering 0.8pu power and the infinite bus voltage is 1.0 pu. Determine: pu 0.35 pu. maximum power transfer, Steady state operating angle, and Natural frequency of oscillation if damping is neglected. jo.35 jo 4 jo:35

Q10. A 50 Hz synchronous generator having an internal voltage 1.2 pu, H = 5.2 MJ/MVA and a reactance of 0.4 The is connected to an infinite bus through a double circuit line, each line of reactance generator is delivering 0.8pu power and the infinite bus voltage is 1.0 pu. Determine: pu 0.35 pu. maximum power transfer, Steady state operating angle, and Natural frequency of oscillation if damping is neglected. jo.35 jo 4 jo:35

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 12.12P

See similar textbooks

Similar questions

A power plant comprises three turbine-generators rated 1000 MW, 800 MW and 600 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 250 MW. Calculate the following:a) Per-unit area frequency response characteristic on a 1000 MW system base [CR9]b) Steady-state drop in area frequency [CR4]c) The share of the load increase on each generator [CR9]d) Total load on each generator after the increase in system load [CR3]Assume the reference power setting of each turbine is unchanged.
A synchronous generator is connected to an infinite bus by a transmission line as shown in the figure. The field current IF = 900A when the unloaded generator is synchronized to the infinite bus. a.) P_M is increased to 0.5pu while I_F is held constant at 900A. Find the complex power S_Inf supplied to the infinite bus in per unit. b.) Determine S_Inf in per unit if IF increases to 1600A and PM is held fixed at 0.5pu.
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.
A 2-pole, 50 Hz, 11 kV synchronous generator with a rating of 120 MW and 0.87 lagging power factor has a moment of inertia of 12,000 kg- . Calculate the constants H and M A 4-pole synchronous generator supplies over a short line a load of 60 MW to a load bus. If the maximum steady state capacity of the transmission line is 110 MW, determine the maximum sudden increase in the load that can be tolerated by the system without losing stability
• Zh = 100 ohm • Draw the pu reactance diagram by taking Ut(base) = 132kV, St(base) = 100MVA. If the 33 kV busbar voltage is kept constant at 30 kV and 0.8 inductive 50 MVA power is drawn from this bus, what is the voltage at the synchronous machine ends?
An area of an interconnected power system has two fossil-fuel operating on economic dispatch. The variable operating costs of these units are given by in image Determine the power output of each units, the incremental operating cost, and the total operating cost that minimizes when total load demand is 250, 500, 750, 1000 and 1250 MW, transmission losses is neglecting?
In the context of power system optimization, discuss the techniques for economic dispatch and optimal power flow to minimize generation costs while meeting load demand.
The yearly duration curve of a certain plant may be considered as a straight line from 100 MW to 40 MW. To meet this load, three turbo-generators, two rated at 40 MW each and one at 30 MW are installed. Determine: (a) units generated per annum, (b) plant capacity factor, (c) load factor, (d) plant reserve factor and (e) utilization factor.
a) Find the Y-bus power system in rectangular and polar coordinates.b) Specify the type of each bus, and the known/unknown values. c) What is the real and reactive power injections at buses 2 and 3?
Discuss the effect of the value of K on the system in terms of Percentage overshoot, peak time, settling time, rise time and steady-state error and Use theory to determine the settling time and steady-state error for K = 15 and compare this result with that obtained from the simulation.
A 1000KVA, 6.6 kV 3 PHASE star connected cylindrical pole synchronous generator has 20-ohm as synchronous reactance and the armature resistance is negligible and the generator is working at the full load and unity power factor then find the value of the induced emf voltage(line to line).
a) How many MVAr of shunt capacitors are required to increase the power factor on a 10 MVA load from 0.85 to 0.9 lagging? b) How many MVAr of shunt capacitors are required to increase the power factor on a 10 MVA load from 0.90- to 0.95 lagging? c) Which requires more reactive power, improving a low power-factor load (case a) or a high power-factor load (case b)?