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Smart grids offer a wide application domain for power electronics. In fact, every distributed energy resource (DER) includes an electronic power processor (Switching Power Interface, SPI) which controls the currents drawn from the grid and can be driven to optimize the power flow, improve voltage stability and increase distribution efficiency. For these aims, such distributed SPIs must perform cooperatively...
The proposed paper studies the transient operation of a grid connected power converter designed for microgrid applications. A control system consisting of an improved droop characteristic control using synchronous frame PI regulators including a feed-forward disturbance decoupling controller is developed and tested. The proposed control system can operate in two main operating modes: islanded and...
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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