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This paper provides a novel power flow algorithm as a viable tool to accurately analyze the steady-state behavior of islanded hybrid ac/dc microgrids. The operational philosophy of these networks is sophisticated since both the ac frequency and dc voltage are variable, coupled, and sensitive to the control schemes of the distributed generators (DGs) and interlinking converters (ICs). In order to render...
This paper presents the design of a Microgrid test bed platform. The aim of this test bed is to provide a real-time verification and simulation tool for islanded Microgrids. The main characteristics are high architectural flexibility, high reconfigurability of the simulated Microgrid, and low number of inverters required to simulate an islanded Microgrid in hardware. The test bed is composed of a...
This paper presents a three-phase uninterruptable power supply (UPS) based on the high performance Z-source inverter (ZSI). The proposed control strategy is based on two loops. The first loop is dedicated to regulate the dc voltage of the Z-network capacitor and limiting the peak value of the dc link voltage by controlling the shoot-through duty cycle. The second loop employs the instantaneous voltage...
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