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A novel nonlinear droop-free distributed controller is proposed to achieve accurate current sharing and eliminate voltage drops in dc Micro-Grid (MG). Then by introducing the sample and holding scheme, the proposed controller is extended to the event-triggered-based controller which is designed based on the Lyapunov approach to guarantee the global stability and convergence instead of localized stability...
This paper presents the operational control strategy of multi-string photovoltaic (PV) systems in a dc microgrid by using model predictive control (MPC). Due to the intermittent nature of solar energy, battery energy storage system with unify-controlled charger is integrated to the dc microgrid to compensate the fluctuating generated PV power and to regulate the dc-bus voltage. A two-string PV system...
This paper presents the integration of the battery and photovoltaic (PV) system and the adaptive control strategy for power balance and the intermittency mitigation in residential dc microgrid system. The excessive power leads to the overvoltage in the dc bus when available power from PV arrays is greater than the sum of the load power. While clouds pass over the panels, the dc bus becomes dynamically...
The Medium-voltage DC amplifier is a thyristor based power converter with a series DC active filter that provides a highly controllable and responsive platform to establish a high power dc bus. Having bulk power flow through the thyristor converter offers an economical and high power density solution over PWM converters. By designing the system to meet standards requested by the US Navy for the Next...
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