Switching Frequency Dynamic Control for DFIG Wind Turbine Performance Improvement around Synchronous Speed Abstract– In a doubly-fed induction generator (DFIG) wind turbine (WT), large thermal and mechanical oscillations occur around synchronous speed due to the nearly zero-frequency current circulating between rotor windings. A switching frequency dynamic control technique is proposed in this paper to overcome…
Techno-Economic Feasibility Analysis of Solar Photovoltaic Power Generation: A Review Abstract-With the rapid depletion of fossil fuel reserves, it is feared that the world will soon run out of its energy resources. This is a matter of concern for developing countries whose economy heavily leans on its use of energy. Under the circumstances it is…
Three-Level Inverter-Based Shunt Active Power Filter in Three-Phase Three-Wire and Four-Wire Systems Abstract?AbstractThis paper presents a direct current-space-vector control of an active power filter (APF) based on a three-level neutral-point-clamped (NPC) voltage-source inverter. The proposed method indirectly generates the compensation current reference by using an equivalent conductance of the fundamental component using APF?s dc-link voltage…
Three-Level PWM Floating H-Bridge Sinewave Power Inverter for High-Voltage and High-Efficiency Applications Abstract?This paper presents a topology of a single-phase float-ing full-bridge three-level pulse width modulation (PWM) power inverter suitable for high-voltage/high-power dc?ac conversion. High power efficiency is obtained thanks to the slow (50/60 Hz) biasing of the H-bridge power supply terminals, allowed by a…
Three-Phase Grid-Connected WECS with Mechanical Power Control Abstract-This paper presents a grid-connected wind energy conversion system (WECS) based on a permanent magnet synchronous generator (PMSG) operating with variable speed. Considering that the wind has intrinsic intermittent nature, it is desirable to maximize the extracted energy, as a maximum power point tracking (MPPT) strategy is described…
Three-phase Three-level (NPC) Shunt Active Power Filter Performances based on PWM and ANN?s Controllers for Harmonic Current Compensation Abstract?Abstract load balancing with respect to the following aspects: Typical control models.Typical resource optimization methods.Typical methods for achieving reliability.Typical coordination mechanisms among heterogeneous nodes.Typical models considering network structures. For each aspect, we summarize the existing studies and…
Three-Phase Three-Level Flying Capacitors Split-Source Inver ters: Analysis and Modulation Abstract-Single-stage dc-ac power converters with boost capabilities offer an interesting alternative compared to two-stage architecture. One of the recently proposed single-stage dc-ac power converters is the split-source inverter (SSI). This paper extends the SSI topology from the two-level operation to the three-level one using the…
Three-Phase Transformerless Shunt Active Power Filter with Reduced Switch Count for Harmonic Compensation in Grid-Connected Applications Abstract-Shunt active power filter is the preeminent solution against nonlinear loads, current harmonics and power quality problems. APF topologies for harmonic compensation use numerous high-power rating components and are therefore disadvantageous. Hybrid topologies combining low-power rating APF with passive…
Three-Port-Converter-Based Single-Phase Bidirectional AC-DC Converter With Reduced Power Processing Stages and Improved Overall Efficiency Abstract-Single-phase bidirectional AC-DC converters based on three-port converter (TPC) is proposed for energy storage applications. Three power interfacing ports, i.e. a DC-bus port, a DC input port and an AC port, are provided by the proposed converter. A battery, whose voltage…
Transformer-Less Unified Power-Flow Controller Using the Cascade Multilevel Inverter Abstract?The conventional unified power-flow controller (UPFC) that consists of two back-to-back inverters requires bulky and often complicated zigzag transformers for isolation and reaching high voltage. < final year projects > View Demo [numbers_sections number=”1″ title=”Including =Packages=” last=”no” ] Complete Source Code Complete Documentation Complete Presentation Slides…
Unified power flow controller based reactive power dispatch using oppositional krill herd algorithm Abstract?Abstract Medical image degradation has a significant impact on image quality, and thus affects human interpretation and the accuracy of computer-assisted diagnostic techniques.Unfortunately, Ultrasound images are mainly degraded by an intrinsic noise called speckle. Therefore, despekle filtering is a critical preprocessing step…
Voltage Modulated Direct Power Control for a Weak Grid-Connected Voltage Source Inverters Abstract-In this paper, we design a voltage modulated direct power control (VM-DPC) for a three-phase voltage source inverter (VSI) connected to a weak grid, where the PLL system may make the system unstable if the conventional vector current control (VCC) method is applied….
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