Abstract

SUMMARY This paper presents a novel real-time load modeling method to minimize the impact of load variation in large-disturbance and short-term voltage stability analysis. The proposed approach utilizes the strong tracking filter and the dominant parameter techniques to achieve the goal of real-time load modeling. A historic database of load parameters is built for the load modeling. Two example systems are illustrated to validate the proposed method. The results show that the new approach is able to track the variation of the load online and provide more accurate load model to predict the system voltage stability. Copyright © 2012 John Wiley & Sons, Ltd.

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