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The application of underground cables and shunt capacitor banks may introduce power distribution system resonances. In this paper, the impacts of voltage-controlled and current-controlled distributed generation (DG) units to microgrid resonance propagation are compared. It can be seen that a conventional voltage-controlled DG unit with an LC filter has a short-circuit feature at the selected harmonic...
This paper describes a novel design concept of power interfaces connecting distributed generators (DG) to the distribution networks. The proposed power interface is able to perform multiple compensating functions besides regulating the real power fed from DG systems. The hardware structure used in the proposed system is similar to the conventional static synchronous compensator (STATCOM), a converter-based...
Harmonic resonances of the distribution power system have become a significant issue in recent years, due to extensive use of either nonlinear loadings or inverter-based distributed generation systems. This paper presents resonant current regulation to enhance the damping capability of the discrete frequency tuning active filter for suppressing power system harmonics. The resonant current regulator,...
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