C.O. Nwankpa

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In this paper, a new type of STATCOM is proposed. This new STATCOM is constructed by cascading several identical full bridge (H bridge) voltage source inverters (VSI). A so called phase-shifted SPWM unipolar voltage switching scheme is applied to control the switching devices of each VSI. The harmonics in STATCOM current caused by the DC voltage ripple are(More)
A novel method for exploring the power system saddle node and Hopf bifurcation boundaries in the space of active and reactive powers has been proposed in the paper. This method is of iterative type with an eigenvalue sensitivity approach used to find a first bifurcation point and a parameter continuation technique used to locate the entire saddle node and(More)
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