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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 describes the structure, control and performance analysis of an alternative configuration of a low cost three-phase transformerless online UPS. The proposed UPS avoids the use of galvanic isolation and consists of a half-bridge rectifier, a battery bank, a half-bridge inverter, a split DC bus and an auxiliary circuit. The auxiliary circuit is composed of an inductor and a small rating switching...
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...
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 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...
the paper presents a new integration concept to generate high voltage step-up non-isolated DC/DC converters. The integration concept relays on the separation of the converter circuit in two or three parts, named input, middle and output sections. Any basic converter can partially or fully share one of its sections with other basic converter. In the paper is demonstrated that, for the input section...
This paper presents a systematic methodology to generate high step-up voltage gain converters based on the combination of two standard DC/DC converters. The converters are combined so that their input sections are integrated reducing the converter component count. Their output sections are associated to derive three basic configurations, the series, the parallel and the cascade outputs. The paper...
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