Showing 85–96 of 451 results
An Improved Single-Stage PFC AC/DC Power Supply Abstract-This letter describes an enhancement to a previously reported single-stage transformer-leakage-inductance based power-factor-corrected isolated power supply. An improved switch timing calculation algorithm is developed to achieve zero current switch on of the active rectifier switches. The algorithm is based on an analytical model of the system relating the…
An Improved Single-Stage PFC AC/DC Power Supply Abstract-This letter describes an enhancement to a previously reported single-stage transformer-leakage-inductance based power-factor-corrected isolated power supply. An improved switch timing calculation algorithm is developed to achieve zero current switch on of the active rectifier switches. The algorithm is based on an analytical model of the system relating the…
An Inpainting-Assisted Reversible Steganographic Scheme Using a Histogram Shifting Mechanism Abstract?An Inpainting-Assisted Reversible Steganographic Scheme Using a Histogram Shifting Mechanism. In this paper, we propose a novel prediction-based reversible steganographic scheme based on image inpainting. First, reference pixels are chosen adaptively according to the distribution characteristics of the image content. Then, the image inpainting…
An Interleaved Bi-directional AC-DC Converter with Reduced Switches and Reactive Power Control Abstract-In this paper, a new interleaved AC-DC converter with a reduced number of semiconductor components for high power energy storage applications is proposed. The interleaved structure reduces the AC side current ripple as well as increases the overall current rating. Moreover, the proposed…
An Interleaved Bi-directional AC-DC Converter with Reduced Switches and Reactive Power Control Abstract-In this paper, a new interleaved AC-DC converter with a reduced number of semiconductor components for high power energy storage applications is proposed. The interleaved structure reduces the AC side current ripple as well as increases the overall current rating. Moreover, the proposed…
An OpenFlow Architecture for Energy-Aware Traffic Engineering in Mobile Networks Abstract? To cope with the growing traffic demand, future mobile networks will be denser and integrate heterogeneous technologies. However, if not properly engineered, such networks may incur huge energy waste when there is little traffic, and may suffer from an unbearable management burden caused by…
Analysis and Design of Modified Half-Bridge Series-Resonant Inverter With DC-Link Neutral-Point-Clamped Cell Abstract? A modified half-bridge (HB) resonant inverter topology with a dc-link neutral-point-clamped cell is pro-posed. A pseudo asymmetrical voltage-cancellation PWM method and a control strategy are introduced. The proposed topology can maximize the inverter output power factor, and minimize variations in the switching…
Design and Stability Analysis of DC Microgrid with Hybrid Energy Storage System Abstract-This paper deals with the design and stability analysis of a DC microgrid with battery-supercapacitor energy storage system under variable supercapacitor operating voltage. The conventional design method reported in the literature considers the rated supercapacitor voltage in the modeling and design of controllers….
Analysis of the Neutral Point Voltage Self-Balance Mechanism in the Three-Level Full-Bridge DC?DC Converter by Introduction of Flying Capacitors Abstract-The three-level full-bridge (TLFB) DC?DC converter has been widely used in high-voltage high-power applications. In the experimental test, the neutral point voltage deviation appears, moreover, it has also been found out that if the flying capacitors…
Analysis of the Neutral Point Voltage Self-Balance Mechanism in the Three-Level Full-Bridge DC?DC Converter by Introduction of Flying Capacitors Abstract-The three-level full-bridge (TLFB) DC?DC converter has been widely used in high-voltage high-power applications. In the experimental test, the neutral point voltage deviation appears, moreover, it has also been found out that if the flying capacitors…
ANFIS Based Add-on Controller for Unbalance Voltage Compensation in Low Voltage Microgrid Abstract-This paper presents an adaptive add-on controller for the unbalance voltage compensation in low voltage microgrid (LVMG) constituting multiple voltage source converters (VSC) based distributed generation. Since, the VSC based LVMG is almost inertia-less system and any kind of load variations have very…
Applying Network Coding to Peer-to-Peer File Sharing Abstract?Network coding is a promising enhancement of routing to improve network throughput and provide high reliability. It allows a node to generate output messages by encoding its received messages. Peer-to-peer networks are a perfect place to apply network coding due to two reasons: the topology of a peer-to-peer…
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