Abstract
The conventional power system dynamic stability model neglects the influence of wide area signal transmission delay and cannot describe dynamic stability mechanism of power system precisely. In order to analyze power system stability in the environment of wide area measurement system (WAMS), a new dynamic stability model of power system considering time-varying delay influence is constructed. Then a novel global asymptotic stability analysis method with less conservativeness for time-delay power system, which extends the small signal analysis method of power system by using an improved Lyapunov–Krasovskii functional, is also derived. Simulation tests verify the correctness of the proposed model and the feasibility of the proposed stability analysis method.
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Acknowledgment
This work was supported by National Natural Science Foundation of China under Grant 51007042.
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Yang, B., Sun, Y. (2014). An Improved Dynamic Stability Analysis Method for Time-Delay Power System. In: Xing, S., Chen, S., Wei, Z., Xia, J. (eds) Unifying Electrical Engineering and Electronics Engineering. Lecture Notes in Electrical Engineering, vol 238. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4981-2_16
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DOI: https://doi.org/10.1007/978-1-4614-4981-2_16
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