Abstract
System stability study is the important parameter of economic, reliable and secure power system planning and operation. Power system studies are important during the planning and conceptual design stages of the project as well as during the operating life of the plant periodically. This paper presents the power system stability analysis for IEEE- 9 bus test system. The fault is created on different busses and transient stability is analyzedfor different load and generation conditions. The critical clearing time (CCT) is calculated by using time domain classical extended equal area criterion method. The system frequency and voltage variation is observed for different fault locations and CCT. The IEEE-9 bus test system is simulated and stability is analyzed on ETAP software.
Highlights
Electric power system stability analysis has been recognized as an important and challenging problem for secure system operation
Power system stability analysis may involve the calculation of Critical Clearing time (CCT) for a given fault which is defined as the maximum allowable value of the clearing time for which the system remains to be stable
Obtained by repeating time-domain simulations, and the evaluation of critical clearing time (CCT) can only be done off-line The Load Flow study and Transient Stability study is discussed and performed for the IEEE-9 Bus test system simulated on ETAP 7.5.1
Summary
Electric power system stability analysis has been recognized as an important and challenging problem for secure system operation. Power system stability analysis may involve the calculation of Critical Clearing time (CCT) for a given fault which is defined as the maximum allowable value of the clearing time for which the system remains to be stable. The power system shall remain stable if the fault is cleared within this time. Critical clearing time (CCT) in a way measures the power systems Transient stability. It denotes the secure and safe time margin for clearing the contingency, usually three-phase ground-fault. The larger the value of CCT, the power system has ample time to clear the contingency. CCT depends on generator inertias, line impedances, grid topology, and power systems operating conditions, fault type and location. Obtained by repeating time-domain simulations, and the evaluation of CCT can only be done off-line The Load Flow study and Transient Stability study is discussed and performed for the IEEE-9 Bus test system simulated on ETAP 7.5.1
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
