PROJECT TITLE :
Impact of Overexcitation Limiters on the Power System Stability Margin Under Stressed Conditions
This paper investigates the impact of the overexcitation limiters (OELs) on the steadiness margin of a power system which is operating below stressed conditions. Several OEL modeling approaches are presented and also the result of their action has been examined in model power systems. It is realized that, additional often than not, OEL operating standing goes undetected by existing dynamic security assessment tools commonly utilized in the business. It's found that the identification and accurate illustration of OELs cause significantly different transient stability margins. Unscented Kalman filtering is used to detect the OEL activation events. In the context of stressed system operation, such quantitative assessment is terribly useful for system control. This understanding is any reinforced through detailed studies in 2 model power systems.
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