Modeling and Analysis of SEIG-STATCOM Systems Based on the Magnitude-Phase Dynamic Method


Vol. 18, No. 3, pp. 944-953, May  2018
10.6113/JPE.2018.18.3.944


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 Abstract

This paper proposes an analysis method based on the magnitude-phase dynamic theory for isolated power systems with static synchronous compensators (STATCOMs). The stability margin of an isolated power system is greatly reduced when a load is connected, due to the disadvantageous features of the self-excited induction generators (SEIGs). To analyze the control process for system stability and to grasp the dynamic characteristics in different timescales, the relationships between the active/reactive components and the phase/magnitude of the STATCOM output voltage are derived in the natural reference frame based on the magnitude/phase dynamic theory. Then STATCOM equivalent mechanical models in both the voltage time scale and the current time scale are built. The proportional coefficients and the integral coefficients of the control process are converted into damping coefficients, inertia coefficients and stiffness coefficients so that analyzing its controls, dynamic response characteristics as well as impacts on the system operations are easier. The effectiveness of the proposed analysis method is verified by simulation and experimental results.


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Cite this article

[IEEE Style]

H. Wang, X. Wu, R. You and J. Li, "Modeling and Analysis of SEIG-STATCOM Systems Based on the Magnitude-Phase Dynamic Method," Journal of Power Electronics, vol. 18, no. 3, pp. 944-953, 2018. DOI: 10.6113/JPE.2018.18.3.944.

[ACM Style]

Haifeng Wang, Xinzhen Wu, Rui You, and Jia Li. 2018. Modeling and Analysis of SEIG-STATCOM Systems Based on the Magnitude-Phase Dynamic Method. Journal of Power Electronics, 18, 3, (2018), 944-953. DOI: 10.6113/JPE.2018.18.3.944.