Classical power system stability was mainly focussed on
rotor angle stability but modern power system stability has
more focus on voltage stability.Why?
Answers were Sorted based on User's Feedback
Answer / iamdon
Majority of blackout/grid failure now a days is due to
voltage instability phenomenon.
This is because Modern power system is very vast and
interconnected to form a grid network.Also generation is
not sufficient to meet the load demand which is incresing
rapidly, due to which load end voltage drops.To maintain
load end voltage and power factor within permissible limits
shunt capacitors are used extesively at almost all load bus
bars(Over compensation),which has detrimental effect on
voltage stability.
At the time of peak load(load increase),the voltage at the
load end decreased so reactive power supplied by shunt
capacitors also reduced.So when we have most need of
reactive power supply,the shunt capacitor prove less
capable.
That's why modern power system satbility problem shifts
towards voltage stability.
Author:arbelectbit@yahoo.com
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / arvind
in todays time also rotor angle as well as voltage
stability anlaysis are been in focused, if rotor angle is
not into consideration then why so much transient analysis
is into picture.
Is This Answer Correct ? | 1 Yes | 0 No |
Yes...Arvind.
Your proposition is right.
I had just made a relative analysis with two stabilities
involved.It does not means that the rotor angle is of no
importance today.It just establish the fact that now we
MORE FOCUSSED towards volyage stability.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / dharmesh
actualy both are cosider in today's power system the difference is rotor angle is for protection of generator and voltage regulation is for load regulation.
Is This Answer Correct ? | 1 Yes | 0 No |
HOW TO CONVERT SQ MM OF A CABLE TO DIAMETER, EG. CABLE SIZE IS 185SQ.MM WHAT IS THE DIA OF THE CABLE??????????????
what is the different betweem earthing and neutral?
my N-P 230 VAC at 3 wires but i haven't any voltages at phase to phase whither my supply is 3 phase, why i haven't received these line to line voltages ?
A 3PH MOTOR RUNNING IN NORMAL CONDITION AND ITS AMPERE ALSO UNDER ITS FULL LOAD CURRENT,ITS CABLE RATINGS ALSO HIGER THN ITS CAPACITY,BUT ITS CABLE GETTING ABNORMAL HEAT(NOT TOO HOT)WHY ITS GETTING HOT LIK THIS?
What is clock position of Transformer?what are the clock positions are there?and what is different of them?
why there using acb enclosure in big buildings
why our power production in multiple of 11, in strictlly asking why our o/p voltage of alternators is 11kv only and whynot graterthan 15 and016KV?
1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.
what is Different between Bilinear and Unilenier?
WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv
What do you mean by passive circuit elements and why these are called passive?
how it can be decided what will be the rating of CT and PT to be used in LT or HT cables?