PPT - Power System Stability Electrical Engineering (EE) Notes | EduRev

Power Systems and Controls

Electrical Engineering (EE) : PPT - Power System Stability Electrical Engineering (EE) Notes | EduRev

 Page 2


?Introduction of Power system stability
?Classification of stability
?Micro Grid
?Interconnection of micro grid 
?Conclusion
Page 3


?Introduction of Power system stability
?Classification of stability
?Micro Grid
?Interconnection of micro grid 
?Conclusion
Defination-
?Power system stability is an ability of an electric power system for 
a given initial operating condition ,To regain a state of operating 
equilibrium after being subjected to a physical disturbance with 
all system variables  are bounded  so  that practically the entire 
system  remain intact.
?Stability is a condition of equilibrium between opposing forces 
instability results when a disturbance leads to a sustained 
imbalance between the opposing  forces.
Page 4


?Introduction of Power system stability
?Classification of stability
?Micro Grid
?Interconnection of micro grid 
?Conclusion
Defination-
?Power system stability is an ability of an electric power system for 
a given initial operating condition ,To regain a state of operating 
equilibrium after being subjected to a physical disturbance with 
all system variables  are bounded  so  that practically the entire 
system  remain intact.
?Stability is a condition of equilibrium between opposing forces 
instability results when a disturbance leads to a sustained 
imbalance between the opposing  forces.
Classification is based on the following considerations:
? physical nature of the resulting instability
? size of the disturbance considered
? processes, and the time span involved
Page 5


?Introduction of Power system stability
?Classification of stability
?Micro Grid
?Interconnection of micro grid 
?Conclusion
Defination-
?Power system stability is an ability of an electric power system for 
a given initial operating condition ,To regain a state of operating 
equilibrium after being subjected to a physical disturbance with 
all system variables  are bounded  so  that practically the entire 
system  remain intact.
?Stability is a condition of equilibrium between opposing forces 
instability results when a disturbance leads to a sustained 
imbalance between the opposing  forces.
Classification is based on the following considerations:
? physical nature of the resulting instability
? size of the disturbance considered
? processes, and the time span involved
?Ability to regain normal and stable operation  after  
being subjected to gradual or slow change in the load.
?Concerned with upper loading of machine before 
losing synchronism.
?Load is assume to be applied at a rate which is slow.
?System is Analysis by the set of linear equation.  
?Action of Voltage regulators and turbine governers are 
not included.
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