Stability Analysis of Aircraft Power Systems Based on a Unified Large Signal Model

Yanbo Che, Jianmei Xu, Kun Shi, Huanan Liu, Weihua Chen and Dongmin Yu
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Yanbo Che: Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China
Jianmei Xu: Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China
Kun Shi: Department of Power Consumption, China Electric Power Research Institute, Beijing 100192, China
Huanan Liu: Department of Electrical Engineering, Northeast Electric Power University, Jilin 132012, China
Weihua Chen: China Energy Equipment CO., LTD. 2, Beijing 100044, China
Dongmin Yu: Department of Electrical Engineering, Northeast Electric Power University, Jilin 132012, China

Energies, 2017, vol. 10, issue 11, 1-15

Abstract: Complex power electronic conversion devices, most of which have high transmission performance, are important power conversion units in modern aircraft power systems. However, these devices can also affect the stability of the aircraft power system more and more prominent due to their dynamic and nonlinear characteristics. To analyze the stability of aircraft power systems in a simple, accurate and comprehensive way, this paper develops a unified large signal model of aircraft power systems. In this paper, first the Lyapunov linearization method and the mixed potential theory are employed to analyze small signal and large signal stability, respectively, and then a unified stability criterion is proposed to estimate small and large signal stability problems. Simulation results show that the unified large signal model of aircraft power systems presented in this paper can be used to analyze the stability problem of aircraft power systems in an accurate and comprehensive way. Furthermore, with simplicity, universality and structural uniformity, the unified large signal model lays a good foundation for the optimal design of aircraft power systems.

Keywords: aircraft power system; unified large signal model; small signal stability; large signal stability; Lyapunov linearization method; mixed potential theory (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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