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This paper presents a new voltage multiplier with a small number of components, composed of a coupled inductor and a switched capacitor cell, which allow four different configurations. To evaluate these configurations, these cells were integrated into the boost converter, thus generating four new high voltage gain topologies. These topologies have different characteristics: thus, the principle of...
A novel high voltage step-up DC/DC converter named Boost-2Zeta converter is proposed and thoroughly analyzed in this paper. This converter is obtained from the combination of two techniques to improve the DC/DC converters voltage conversion ratio that are: (i) the additive auto-transformer connection of the coupled-inductor of the Zeta converter; and (ii) the association of DC/DC converters with series...
This paper proposes a modified current pulse charging method for lead-acid batteries applied in a family of Uninterruptible Power Supplies with a bank of sealed lead-acid batteries (VRLA). The method is presented based on a phase-shift Full-Bridge converter with galvanic isolation. To confirm the results expected from the theoretical analysis a prototype is developed and experimental results are presented...
This paper proposes a novel single-switch DC/DC converter for the Future Renewable Electric Energy Delivery and Management (FREEDM) System to implement the Distributed Renewable Energy Resources (DRER). The DRER is responsible for the Maximum Power Point Tracking (MPPT) of the PV module and also the charging method of battery pack. Experimental and Simulation results are presented for the purpose...
The Future Renewable Electric Energy Delivery and Management (FREEDM) Systems Center was recognized with the mission to improve the fundamental and permitting technologies essential for model ever-changing power grid infrastructure, the FREEDM System. Aiming to reduce this system costs and improve its reliability and modularity, this paper proposes an improvement in the FREEDM topology. It consists...
This paper describes a modified current pulse charging method for lead-acid batteries applied to a family of Uninterruptable Power Supplies with a bank of sealed lead-acid batteries (VRLA). The proposed method is presented based on a phase-shift Full-Bridge converter with galvanic isolation. Experimental results are presented to validate the proposed method.
The proposal of this paper is to present and analyze a charging station PV system of battery (PV-CS) with a wide range of output voltage buses, where is possible to make the charge of the batteries at the maximum power point tracking (MPPT), which increases the PV utilization. In this paper, a complete analysis of the Zeta converter applied as a photovoltaic battery charger is carried out. The solar...
This paper proposes an analysis of a high step-up DC/DC converter named Integrated Quadratic-Boost-Zeta converter. It is based on the combination of two well-known DC/DC converter circuits, the Isolated Zeta converter and the Quadratic-Boost converter. The aim of this paper is to analyze the voltage static gain, the voltage and current stresses on the components of the converter as well as its main...
In this paper, a complete analysis of the Zeta converter applied as a photovoltaic battery charger is carried out. The design methodology of the solar battery charger system, including the power circuit main devices and system controllers are presented in details. The solar battery charger includes an alternative Constant Current/Constant Voltage (CC/CV) charging method with inherent Perturb and Observe...
This paper proposed a simple modeling approach for the dynamic analysis and characterization of a family of high step-up DC-DC converters obtained by the integration of standard topologies presented by the authors in a previous paper. Simulations and experimental results are obtained to confirm the reliability of the approach.
This paper proposes a novel high step-up DC/DC converter named Integrated Quadratic-Boost-Zeta converter. It is based on the combination of two well-known DC/DC converter circuits, the Isolated Zeta converter and the Quadratic-Boost converter. The output voltage boosting is accomplished by summing both output voltages of the Zeta and the Quadratic-Boost. The circuit is designed in such way that each...
This paper proposes a novel PV module integrated system with energy storage capability. The topology is based on the Future Renewable Electric Energy Delivery and Management (FREEDM) System, where Distributed Renewable Energy Resources (DRER) comprised by a single power stage, are responsible for the Maximum Power Point Tracking (MPPT) of each PV module and also the charging method of a centralized...
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