MODELING AND SMALL SIGNAL STABILITY ANALYSIS OF STRATOSPHERIC AIRSHIP ENERGY SYSTEM

Gao Yang; Xu Guoning; Wang Sheng; Li Zhaojie; Cai Rong

doi:10.19912/j.0254-0096.tynxb.2020-1346

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (8) : 50-57. DOI: 10.19912/j.0254-0096.tynxb.2020-1346

MODELING AND SMALL SIGNAL STABILITY ANALYSIS OF STRATOSPHERIC AIRSHIP ENERGY SYSTEM

Gao Yang^1,2, Xu Guoning^1,2, Wang Sheng^1,2, Li Zhaojie^1,2, Cai Rong^1,2

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Abstract

In this paper, a small signal model of stratospheric airship energy system that can reflect its characteristics is established, especially the addition of a brushless DC motor for propulsion. This model can describe the input-output relationship between the various parts of the energy system and the dynamic characteristics of the power controller. In addition, based on the small signal model and its linearization results, the eigenvalue method is used to analyze the influence of some key parameters on the small signal stability of the system, these parameters include irradiance, solar cell operating temperature, power control system parameters, motor torque coefficient and motor control system parameters. This model and analysis results provides an important reference for the parameter optimization design and stability analysis of stratospheric airship energy system.

Key words

distributed power generation / systems stability / state space methods / energy management / photovoltaic / stratospheric airship

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Gao Yang, Xu Guoning, Wang Sheng, Li Zhaojie, Cai Rong. MODELING AND SMALL SIGNAL STABILITY ANALYSIS OF STRATOSPHERIC AIRSHIP ENERGY SYSTEM[J]. Acta Energiae Solaris Sinica. 2022, 43(8): 50-57 https://doi.org/10.19912/j.0254-0096.tynxb.2020-1346

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