New Robust Stability Criteriafor Power Systems with Time-Varying Delay

doi:10.11985/2019.01.014

Abstract

Abstract:

Based on the conservativeness of the stability of uncertain time-delay power systems, a novel Lyapunov-Krasovskii functionalis is constructed. Firstly, a new stability criterion is established by introducing and applying a new free-matrix-based integral inequalityapproach to deal with the integral terms yielded in functional derivatives, then the results are obtained that are formulated in the form of linear matrix inequalities(LMI). Finally, the single machine system is taken for a typical example to show the effectiveness and superiority of the proposed method in Matlab.

Key words: Power systems, Lyapunov-Krasovskii functional, time-varying delay, robust stability

CLC Number:

TM743

ZHONG Kaicheng. New Robust Stability Criteriafor Power Systems with Time-Varying Delay[J]. Journal of Electrical Engineering, 2019, 14(1): 79-82.

Figures/Tables 1

References 11

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r	文献[8]	文献[10]	定理1	r	文献[8]	文献[10]	定理1
0.5	0.058 7	0.057	0.063 4	5	0.045 7	0.039 7	0.059 4
1	0.057 6	0.055 2	0.063 0	6	0.044 4	0.035 3	0.058 6
1.5	0.055 7	0.053 4	0.062 6	7	0.041 7	0.030 7	0.057 8
2	0.054 5	0.051 6	0.062 2	8	0.039 2	0.026 3	0.056 8
2.5	0.053 3	0.049 7	0.061 6	9	0.036 3	0.02 2	0.056 0
4	0.047 9	0.043 9	0.060 4	10	0.034 3	0.01 8	0.055 0