Informations about energy in hagen, germany

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With the increase in load demand, the Renewable Energy Sources (RES) are increasingly connected in the distribution systems which utilizes power electronic Converters/Inverters. Nowadays, 3-phase 4-wire distribution power system has been widely used in residential and office buildings, manufacturing facilities, schools etc This paper presents a novel control strategy for achieving maximum beneﬁts from the grid-interfacing inverters when installed in 3-phase 4-wire distribution systems. The inverter can thus be utilized as: 1) power converter to inject power to the grid, and 2) shunt APF to compensate current unbalance, load current harmonics and load neutral current. All of these functions may be accomplished either individually or simultaneously. This new control concept is demonstrated with extensive MATLAB/Simulink simulation studies

A CONTROL APPROACH FOR GRID INTERFACING INVERTER IN 3 PHASE 4 WIRE DISTRIBUT...

IJMER

Il2616361640

IJERA Editor

103 1.4.2distribution2

Talia Carbis

ComEd is in the process of building the first-ever microgrid cluster in the world, within the Bronzeville neighborhood of Chicago. This cluster will connect the Illinois Institute of Technology (IIT) campus microgrid to the newly-developed Bronzeville Community Microgrid (BCM). Besides the focus on investigating cluster control and operations, one of the primary goals of the BCM project is to address the inherent power fluctuations of solar photovoltaic (PV) technologies by coordinating energy storage and leveraging ancillary services of smart inverters connected to PV and storage systems. To this end, a utility-scale battery energy storage system (BESS) and multiple rooftop PV systems have been installed in BCM. This paper presents analyses of interesting site acceptance test (SAT) for the BESS. The SAT is required to ensure that the installed controllers adjoined with protection and communication units can control the BESS so that the BCM complies with interconnection standards.

Successful Site Acceptance Tests for Microgrid-Integrated Battery Energy Storage

Power System Operation

The number of Power Electronic Converter(PECs) utilised in power systems throughout the world is increasing. PECs are found in a huge range of applications, in power systems they are used to interface Distributed Generation (DG) to the main power system and for fault current limiting/interruption applications. These PEC interfaces generally have a low tolerance to overcurrent and rely on extremely fast acting protection which is integral to the PECs’ control systems. The widespread introduction of PEC-interfaced energy sources has both positive and negative implications for network protection.

Protection of Converter Dense Power Systems

Aditya Kumar Tripathy

This paper presents the simple design of a grid-tied single-phase with distributed rooftop photovoltaic (PV) non-uniformly location and ratings. All the inclusion components in the developed scheme are estimated and defined as the inevitability of low voltage (LV) residential network. This developed scheme is purposed for allocating AC and DC load, which are divided into four steps: the sized determination of PV inverter (1-5kW), the selection of PV array, the size determination of battery and the selection of other supporting components. The purposed configuration consists of modeling the system with non-uniform distributions of rooftop PVs, modeling the rooftop PVs based on their injected active and reactive power, and finally the inclusion of battery storage, based on its state of charge (SOC). Due to test the configuration, several cases are built in the MATLAB platform. Simulation results have been generated and analyzed for an unbalanced three-phase residential feeder which is populated with rooftop PVs and battery storage (BS). The simulation results show that the unbalanced reduction due to the coordinate of PVs and BS that provided educated energy storage when the unequal loadings are there, have significant effect toward the anxiety of the distribution network are successfully done.

Non-uniform Rooftop PVs Distribution Effect to Improve Voltage Profile in Res...

TELKOMNIKA JOURNAL

Artificial Ozone Generating system needs High Voltage, High Frequency supply. The Ozonator distorts the supply currents and henceforth affect the supply power factor. This paper presents the performance comparison of PWM inverter to Power Factor Corrected (PFC) converter with PWM inverter based High-voltage High-frequency power supply for ozone generator system. The conventional inverter has front end bridge rectifier with smoothing capacitor. It draws non-sinusoidal current from ac mains; as a result input supply has more harmonics and poor power factor. Hence, there is a continuous need for power factor improvement and reduction of line current harmonics. The proposed system has active power factor correction converter which is used to achieve sinusoidal current and improve the supply power factor. The active PFC converter with PWM inverter fed ozone generator generates more ozone output compared to the conventional inverter. Thus the proposed system has less current harmonics and better input power factor compared to the conventional system. The performance of the both inverters are compared and analyzed with the help of simulation results presented in this paper.

Supply Power Factor Improvement in Ozone Generator System Using Active Power ...

IJPEDS-IAES

The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published. The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.

E021203026035

theijes

At present the Renewable energy resources (RES) are being increasingly connected in distribution systems utilizing power electronic converters. This paper presents a novel control strategy for achieving maximum benefits from these grid-interfacing inverters when installed in 3-phase 4-wire distribution systems. The inverter is controlled to perform as a multi-function device by incorporating active power filter functionality. The inverter can thus be utilized as power converter to inject power generated from RES to the grid and shunt APF to compensate current unbalance, load current harmonics, load reactive power demand and load neutral current. All of these functions may be accomplished either individually or simultaneously. With such a control, the combination of grid-interfacing inverter and the 3-phase 4-wire linear/non-linear unbalanced load at point of common coupling appears as balanced linear load to the grid. This new control concept is demonstrated with extensive MATLAB/Simulink simulation studies and validated through digital signal processor-based laboratory experimental results.

Enhancement in Power Quality With Grid Interconnection of Renewable Energy So...

IJERA Editor

This paper presents the design and development of an integrated wireless power transfer and data communication system. The power and data transfer share a common inductive link that consists of two identical Helical coils placed on both sides of a carbon composite barrier. Power and data are transferred simultaneously through a 5-mm thick carbon composite barrier without any physical penetration or contact. Power transfer measurements show that the system can deliver 9.7 AC power to the receiving coil with a power transfer efficiency of 36% through the carbon composite barrier. The system achieves a bidirectional half-duplex data communication with the data rate of unit 1.2kbit/s.

Wireless power and data transfer through carbon composite using a common indu...

International Journal of Power Electronics and Drive Systems

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A CONTROL APPROACH FOR GRID INTERFACING INVERTER IN 3 PHASE 4 WIRE DISTRIBUT...

Il2616361640

103 1.4.2distribution2

Successful Site Acceptance Tests for Microgrid-Integrated Battery Energy Storage

Protection of Converter Dense Power Systems

Non-uniform Rooftop PVs Distribution Effect to Improve Voltage Profile in Res...

Supply Power Factor Improvement in Ozone Generator System Using Active Power ...

E021203026035

Enhancement in Power Quality With Grid Interconnection of Renewable Energy So...

Wireless power and data transfer through carbon composite using a common indu...

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