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In this paper a detailed description of the design and simulation of a DC ultra-fast recharging station for Electric Vehicles is carried out. The system consist of a single AC/DC grid connected inverter, a DC-Bus and two DC/DC converter to recharge the batteries of the EVs. The system also has the vehicle-to-grid (V2G) capability. The design of the components of the system and the control schemes...
Integrate Solar PV in scalable on to the grid connected and standalone power generation system has increased attention in these days due to its sustainability and more greener generation. This has become a good option to reduce the telecom Radio Base Stations utility power consumption. The techno economic feasibility of Solar PV integration methodologies in to On-Grid telecom based stations, basically...
Solar race cars require compact components operating at high efficiency. This paper proposes the use of a coreless axial flux permanent magnet machine, which has the attributes of low stator mass, negligible core loss and virtually zero cogging torque, as the propulsion motor. A three-phase inverter with its dc bus fed from a three-port DC/DC converter, which accepts inputs from a solar panel and...
This paper discusses about the hybrid cascaded nine level inverters for photovoltaic applications. Cascaded multi-level inverter is made up of series connected half bridge inverters and the output voltage of cascaded MLI is the sum of all inverter output voltages. Cascaded MLI produce staircase output voltage waveform having less harmonics, high output voltage, lower acoustic noise, as compared to...
Most of the large scale photovoltaic power plants (LS-PVPP) count on power converters with a central configuration. Advantages such as robustness, low maintenance and installation cost makes this configuration the preferred specially suitable in large scale systems. However, important drawbacks like the low efficiency level make necessary to develop new solutions for future power plants. In this paper...
In this paper, it is proposed a robust Second-Order Super-Twisting Sliding Mode Control for a Grid-connected inverter of a PV power plant. The proposed control strategy is able to maximize the energy extracted from the PV while regulating the DC-link voltage and achieving a power factor compensation and the reduction of currents harmonic distortion. Both in balanced or unbalanced condition, the grid...
The key drivers for Maximum Power Point Tracking (MPPT) solutions in photovoltaic (PV) power plants are independency from solar panels, fast tracking of irradiance and temperature variations, and efficiency of conversion capacity. In the most available MPPT solutions, some issues such as high implementation burden and performance degradation during abrupt changes have not been sufficiently investigated...
This paper further describes our work presented in Industry Application Society 2016 Conference, with more details related to the control and operation of the microgrid. The DC microgrid facility was custom designed and implemented at CCNY with minimal off-the-shelf components to enable flexibility and reconfiguration capability. The design steps, requirements, and experimental results of the developed...
With the demand increase for electricity, the ever-increasing awareness of environmental issues, coupled with rolling blackouts, the role of renewable energy generation will become even more significant. Instead of the traditional high-power energy storage and management system at the utility scale to implement PV firming, this paper proposes a new PV (panel-level) firming control algorithm using...
In this article, a current control algorithm is conceived for converting solar dc power into ac power of high-quality. This conversion is based only on a dc-ac converter, avoiding the use of two stage converter. The proposed algorithm is founded on tracking the maximum power point which ensures controlling the electrical power exchanged with the grid. To assure a good dynamics and reduce the control...
Microgrids are a growing trend toward a new power distribution system that allows for a high penetration of renewable distributed generation, electrical energy storage systems and controllable loads. This modern concept exploits the advances in electronic technology to improve efficiency, reliability, and flexibility, while reducing cost and size. Furthermore, microgrids can operate in a grid-connected...
Driven by economic and environmental concerns, countries around the world are demanding renewable energy resources (RES). Among the available renewable resource; wind and solar energy are promising resources. Recent energy regulations in Jordan have allowed the customers to install their own Photovoltaics generation (PVs) to cover their full energy consumption. This paper investigates the impact of...
In this paper the grid harmonic resonance on long lines is studied, in particular the resonance phenomena between the grid series inductance and the line parallel capacitor. Later, the resonance is attenuated by using a renewable energy generator. Experimental results are depicted and the conclusions are stated.
Solar photovoltaic (PV) renewable energy systems are undergoing major technological developments and large-scale field deployment and electric grid integration. This paper proposes a method of expanding the capacity of an existing irrigation farm with additional pumps powered by solar PV. The system includes PV arrays and battery energy storage connected to a common dc bus, which energizes an array...
The increase in penetration levels of distributed generators like PV and Wind in a distribution system makes the IEEE 519 standard to be a vital aspect towards power quality. The network resonance has been described by IEEE 519 as a major contributor towards the harmonic distortion. Non-linear loads such as transformers, machines, silicon-controlled rectifiers (SCRs), solid state devices, power transistors,...
In this paper a new electric power structure for solar powered unmanned aircraft system is proposed. The presented topology is a prospective improvement to both Solong and Zyphyr models. The proposed UAS model utilized Zyphry UAS by using ac bus-line instead of dc bus-line to supply the propellers. The system involves PV array, lithium sulfur based energy management system, dc bus-line, inverter,...
This paper aims to analyze the enhanced performance of grid connected transformerless inverters (GCTI) by the application of novel Wide Band Gap (WBG) devices with modified PWM. Highly Efficient Reliable Inverter Concept (HERIC) is chosen for this study because of its excellent common-mode noise cancellation capabilities and numerous solar photovoltaic applications. HERIC inverter works efficiently...
This paper presents an interfacing system of a photovoltaic (PV) array with an electrical grid based on a dual cascaded inverter. The PV array is connected to the main inverter through a boost converter, for maximum power extraction, while the dc-side of the auxiliary inverter is connected to a capacitor bank. The main and auxiliary inverters are controlled to deliver the harvested maximum power from...
The modeling, simulation and analysis of the energy conversion equations describing the behavior of a hybrid system PV and wind turbine, hybrid system for electrical power generation. A numerical model based on the aforementioned equations was developed, coded and results were compared to experimental data. The model is intended to be used as an optimization and design tool for such hybrid systems...
Renewable energy resources are connected to power grid through voltage source inverters. In these systems, the electric current entering into the grid is supposed to fulfill the IEEE criteria, so that high quality of power with less distortion is transported. Due to this, low pass filters like L, LC or LCL are applied by means of the inverter to minimize the harmonics getting into the grid. LCL filters...
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