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This paper proposes an improved energy management strategy for simultaneous power management of the photovoltaic grid-connected system with energy storage. Based on the DC bus voltage and the working states of grid, the PV system is divided into six working modes by the proposed energy management strategy. This can avoid the effect of grid failure on PV system, and achieve the optimal utilization...
Flyback inverter topology is attractive because of its simplicity, low cost and high efficiency, when compared with other topologies for the photovoltaic ac module application. This paper aims to improve the poor performance of the grid-connected current in continuous conduction mode(CCM). A proportional-integral and repetitive controller(RC) is proposed to regulate the grid current, high power factor...
On-chip communication is the bottleneck of system performance for NoC-based MPSoCs. SMART, a recently proposed NoC architecture, enables single-cycle multi-hop communications. In SMART NoCs, unconflicted messages can go through an express bypass and the communication efficiency is significantly improved, while conflicted messages have to be buffered for guaranteed delivery with extra delays. Therefore,...
High voltage, high current power supplies are required to generate plasma in a tokamak. This equipment converts high voltage AC from the grid into both AC and DC energy sources. Recently, new switching devices based on wide bandgap semiconductors have emerged that could significantly improve the efficiency of these systems. This paper explores the benefits of using silicon carbide (SiC) MOSFET power...
In order to meet the growing demand of electric energy, high-voltage dc transmission and flexible ac transmission has been actively investigated to improve the bulk power transmission efficiency. Due to the limitation of the voltage and power rating of a single device, series connection technology of semiconductor devices has been applied for high voltage and high power applications. In this paper,...
HyperText Markup Language (HTML) is the main markup language for web pages. HTML5 is a new generation of HTML standards. With the development of HTML5, it has wide range of applications in the multimedia direction. This new standard first describes the Video and Audio tag, and then elements of Video and Audio are discussed, pointing out that the support of the current browser to Video and Audio format...
The PWM motor drive system has well running characteristics and it has been widely used in the industrial and civilian equipment field, but the high speed switching action of the power device may cause serious problem of EMI by voltage and current transients. This paper based on the research of the differential mode interference and common mode interference of the system while multiple converters...
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