Power System Transient Stability Study Fundamentals

The ability of a power system, containing two or more synchronous machines, to continue to operate after a change occurs on the system is a measure of its stability. The stability problem takes two forms: steady-state and transient. Steady-state stability may be defined as the ability of a power system to maintain synchronism between machines within the system following relatively slow load changes. Transient stability is the ability of the system to remain in synchronism under transient conditions, i.e., faults, switching operations, etc. In an industrial power system, stability may involve the power company system and one or more in-plant generators or synchronous motors. Contingencies, such as load rejection, sudden loss of a generator or utility tie, starting of large motors or faults (and their duration), have a direct impact on system stability. Load-shedding schemes and critical fault-clearing times can be determined in order to select the proper settings for protective relays.

These types of studies are probably the single most complex ones done on a power system. A simulation will include synchronous generator models with their controls, i.e., voltage regulators, excitation systems, and governors. Motors are sometimes represented by their dynamic characteristics as are static var compensators and protective relays.

This advanced level course reviews the subject of transient stability calculations in a very structured fashion. First, modelling technique is shown for a generic power system, dynamic equipment is modelled in details and calculations are performed for selected disturbances throughout the system. A detailed explanation of modelling and calculation procedure is offered. Explained techniques can be implemented in any commercial power system software package.

Once you complete your course review, you need to take a multiple-choice quiz consisting of twenty five (25) questions to earn 3 PDH credits

Learning Objectives

This course is intended to provide you with the following specific knowledge and skills:

Power system stability fundamentals
Problems caused by instability
System disturbances that can cause instability
Solution to stability problems
System stability analysis
Stability studies for power systems
Example

Download the Course to review and begin earning your PDH credits.

We provide technical courses for PDH credits that meet Board requirements for Professional Engineers, Geologists and Land Surveyors. This courses is guaranteed to be accepted in AK, AL, AR, FL, GA, IA, IL, ID, IN, KS, KY, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WI, WV, and WY. Before purchasing this course, please confirm that your state Board is listed above.