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This paper described a novel design of a hybrid fuel cell and energy storage system using high temperature superconducting energy storage system (HT-SMES) or batteries to meet fast changing load. The power electronic switches in the converter of the energy storage system are controlled in such a way that the amplitude and waveform of the inverter output current from the fuel cell is tightly regulated...
In this paper, a novel single-phase five-level inverter is presented to alleviate harmonic components of the output voltage. To keep the output voltage being sinusoidal and to have the high dynamic performance, the paper present a control scheme based on repetitive control with the feedback of the capacitor current. In order to expediently observe the capacitor current, the author uses a dimensionality...
This paper proposed a novel hybrid asymmetric 9-level inverter in which an asymmetric 5-level inverter and an H-bridge inverter with equal DC bus voltage are series connected. A hybrid asymmetric modulation technique for the novel inverter is illustrated. In terms of the control technique adopted, the new configuration permits faster devices and higher voltage devices operating in synergism. In the...
In this paper, a novel single-phase five-level inverter only using five power switches is presented to alleviate harmonic components of the output voltage. The derivation of the topology and its modulation methods are analyzed in the paper. In AC system, nonlinear loads are major sources of total harmonic distortion (THD), so the repetitive control system is given to keep the output voltage being...
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