Showing 25–36 of 451 results
A Modular Multilevel DC-DC Converter Topology with a Wide Range of Output Voltage Abstract-To solve some problems caused by the AC control method used for the existing modular multilevel DC-DC converter (MMDC), this paper has proposed a new MMDC topology with a wide range of output voltage by means of DC control. By reconstructing the…
A Multi-Objective Optimization Technique to Develop Protection Systems of Distribution Networks with Distributed Generation Abstract-This paper presents a new methodology based on multi-objective optimization techniques to perform an optimized, coordinated and selective allocation of control and protection devices in distribution networks with distributed generation (DG). The proposed mathematical model consists of two objective functions that…
A Multiple Improved Notch Filter Based Control for Single Stage PV System Tied to Weak Grid Abstract-In this paper, a control scheme based on improvement in generalized integrator is implemented on a three phase single stage grid tied solar photovoltaic system with the distribution static compensator capabilities under grid abnormal conditions of voltage distortion and…
A Neural Approach for overall Improvement of OFDM System Abstract?A Neural Approach for overall Improvement of OFDM System. This paper presents a neural network based, high power amplifier (HPA) characteristics independent adaptive method for compensation of nonlinear distortions for orthogonal frequency division multiplexing signals. Major elements that contribute to multipath fading effects are also considered…
A New Algorithm for Inferring User Search Goals with Feedback Sessions.For a broad-topic and ambiguous query, different users may have different search goals when they submit it to a search engine. The inference and analysis of user search goals can be very useful in improving search engine relevance and user experience. In this paper, we…
A New Cascaded Switched-Capacitor Multilevel Inverter Based on Improved Series?Parallel Conversion With Less Number of Components Abstract? The aim of this paper is to present a new structure for switched-capacitor multilevel inverters (SCMLIs) which can generate a great number of voltage levels with optimum number of components for both symmetric and asymmetric values of dc-voltage…
A New Controller for Bi-directional Wireless Power Transfer Systems Abstract-Wireless power transfer (WPT) is a promising technology for supplying power to various applications with no physical contacts. Recently, bidirectional wireless power transfer (BD-WPT) systems are gaining popularity for grid-to-vehicle and vehicle-to-grid applications which essentially require power transfer in both directions. However, BD-WPT systems are complex…
Hybrid Job-Driven Scheduling for Virtual MapReduce Clusters Abstract? Power electronics solutions based on multiple converter configurations offer cost-effective solutions by integrating a number of components at input or output power stages. A new multiinput isolated three-level converter for renew-able and sustainable energy systems adopting high dc link voltage. Multiple dc sources are integrated to the…
A New PAPR Reduction Technique in OFDM Systems Using Linear Predictive Coding Abstract? High peak-to-average power ratio < Final Year Projects 2016 > PAPR has always been as a major problem in orthogonal frequency division multiplexing (OFDM) that leads to a severe nonlinear distortion in practical hardware implementations of high power ampli?er. In this article,…
A New Single-Phase Switched-Coupled-Inductor DC-AC Inverter for Photovoltaic Systems Abstract-In the first place, presents a new single-phase switched-coupled-inductor DC-AC inverter featuring higher voltage gain than the existing single-phase qZ-source and semi-Z-source inverters. Similar to the single-phase qZ-source and semi-Z-source inverters, the proposed inverter also has common grounds between the DC input and AC output voltages,…
A New Space Vector Modulation Scheme for Multilevel Inverters Which Directly Vector Quantize the Reference Space Vector Abstract? A New Space Vector Modulation Scheme for Multilevel Inverters Which Directly Vector Quantize the Reference Space Vector. A new space-vector-based sigma delta modulation scheme for any general N-level voltage source inverter is proposed in this paper, which…
A New Surface-Inset, Permanent-Magnet, Brushless DC Motor Drive for Electric Vehicles Abstract?A New Surface-Inset, Permanent-Magnet, Brushless DC Motor Drive for Electric Vehicles. A new five-phase, surface-inset, permanent-magnet (PM), brushless dc motor drive is proposed in this paper. The motor drive has advantages of both the PM brushless dc motor drive and the dc series motor…
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