Stability analysis of STATCOM in distribution networks Article

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Overview

abstract

• This chapter presents the stability analysis based on bifurcation theory of the distribution static compensator (DSTATCOM) operating both in current control mode as in voltage control mode. The bifurcation analysis allows delimiting the operating zones of nonlinear power systems and hence the computation of these boundaries is of interest for practical design and planning purposes. Suitable mathematical representations of the DSTATCOM are proposed to carry out the bifurcation analyses efficiently. The stability regions in the Thevenin equivalent plane are computed for different power factors at the Point of Common Coupling (PCC). In addition, the stability regions in the control gain space are computed, and the DC capacitor and AC capacitor impact on the stability are analyzed in detail. It is shown through bifurcation analysis that the loss of stability in the DSTATCOM is in general due to the emergence of oscillatory dynamics. The observations are verified through detailed simulation studies. © Springer Science%2bBusiness Media Singapore 2015.

authors

• Ledwich G.
• Ríos A.M.
• Segundo J.

publication date

• 2015-01-01

published in

• Power Systems  Journal

Research

keywords

• Bifurcation; DSTATCOM; Floquet multiplier; Stability regions

Identity

Digital Object Identifier (DOI)

• 10.1007/978-981-287-281-4_20

Additional Document Info

start page

• 687

end page

• 714

volume

• 90