In hybrid and renewable energy system, multiple-input converter is the best choice to integrate various input sources for supplying power to the load. In this paper, a multi-input DC-DC converter having ability to transfer energy from one of the sources to the energy storage source is presented. This feature results in improved reliability. In addition to this, energy sources having distinct vo...

The Modular Multilevel Converter (MMC) represents an emerging topology with a scalable technology making high voltage and power capability possible. The MMC is built up by identical, but individually controllable sub modules. The Modular Multilevel Converter (MMC) is a new topology for multilevel converters with potential for medium voltage and high voltage applications. Equivalent Circuit mode...

The paper introduces the family of quasi-direct converters, i.e., forced-commutated adddac converters including small energy storage devices in the dc link. In particular, the case of three-phase to three-phase quasi-direct converter is considered. Since energy storage minimization calls for instantaneous inputloutput power balance, a proper control strategy is needed. The paper describes a sim...

abstract intensive and inefficient use of energy leads to degradation of natural resources and environmental problems. this study evaluated the relationship between the energy of consumed inputs and yield of tomato, cucumber and melon using the cobb–douglas production function. the data were collected from 90 farmers in firoozabad using a questionnaire. the farmers were chosen by simple random ...

A Double input DC to DC converter for low voltage energy sources applications is proposed in this paper. The proposed converter is buck-boost converter which can step up or step down the input voltage according to output voltage required at load end. The converter is able to boost up voltage of energy sources such as solar photovoltaic and wind energy system of relatively low voltage. The conve...

This paper presents a novel multi-port DC/DC converter which is suitable to be used as the interface of hybrid renewable energy systems. The converter contains three unidirectional power flow ports which two of them are input ports and are connected to two independent energy sources while the third one is the output port that feeds a standalone load. Furthermore, the proposed converter contains...

This study proposed a cost effective method of wind energy conversion system (WECS) incorporating permanent magnet generator (PMG) and single stage power converter. Axial flux PMG can generate rated voltage and frequency even at a lower speed and hence more suitable for direct drive WECS. To get desired voltage and frequency in continuously varying wind conditions, a new type of WECS with singl...

In this work, a Radio Frequency (RF) Energy Harvester comprised of a differential Radio Frequency-to-Direct Current (RF-DC) converter realized in ST130 nm Complementary Metal-Oxide-Semiconductor (CMOS) technology and a customized broadband Printed Circuit Board (PCB) antenna with inductive coupling feeding is presented. Experimental results show that the system can work with different carrier f...