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A Review of Power Management and stability Issues in Microgrid

A Review of Power Management and Stability Issues in Microgr...

引用

international conference on Power Electronics, Intelligent Control and Energy Systems

作者： Sanjit Kumar Kaper Niraj Kumar Choudhary Department of Electrical Engineering MNNIT Allahabad India

ISBN: (纸本)9781467385886

Demand of power is growing day by day but non-conventional sources which are primary sources of energy are not only limited but also the pollutants released from them cause pollution. Microgrid system is one of the best solutions of feeding electrical demand and checking pollution as most of the distributed energy resources (DER) used in the microgrid are environment friendly. Microgrid also maintains reliability of electricity in the system. Use of renewable generators like photo voltaic (PV), wind etc. provide power using conventional sources with less pollution, but their implementation in grid causes several complications like circulating current, voltage harmonics, reduction in storage life, over voltage and over current in transient etc. Apart from that other challenges like active- reactive power sharing, current sharing, power management among renewable sources and high penetration of renewable energy are required to be focused to increase the handling and working capability of microgrid. The paper proposes an extensive literature survey on these severe problems in microgrid system and enlists the different work going on to eliminate the particular type of problems.

关键词： distributed Energy Resources Power Management Current Sharing Load Sharing stability Analysis Harmonic Removal Circulating Current Transient Control Seamless Power Transfer

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Passive Islanding Detection Approach for Inverter based DG using Harmonics Analysis

Passive Islanding Detection Approach for Inverter based DG u...

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international conference on Power Electronics, Intelligent Control and Energy Systems

作者： Abhilasha Kumari Rupendra Kumar Pachauri Yogesh K. Chauhan Electrical Engineering Department School of Engineering Gautam Buddha University

ISBN: (纸本)9781467385886

The accretion or demand of distributed generators (DG) have significant or meaningful operation along with the electric power system;the organize way to reassure the proper operation of the power system along with the DG set, more and more variables and constrain have to be predefined and controlled. Formation of islanding phenomenon is one of the major issued problem confronted with this kind of power generation scheme, in which DG source may keep working in a stable or normal way even if main electric power system (EPS) has failed. There are various methodologies have been evolved and advanced to avert this situation. They are classified as detection through passive method, active and communication systems based method. Islanding occurrences is the most issued problem in a recent time power system working along with the DG. A variety of problems occur when a solar Photovoltaic is working as distributed generated (DG) source. Islanding refers to a condition when a DG source continues to supply power to a load even though there is no power from the main source during the disconnection from the main grid at the occurrence of fault or some other severe phenomenon, refers to a situation or condition called islanding. When workers who may not perceive that the load is still powered after the disconnection from the EPS or main source so this condition can be dangerous to the grid workers. When this condition occur the DG source should gets immediately disconnected from the local load in minimum time delay. Islanding causes unfavorable effects which are low power quality, personnel potential danger, grid-protection interference and equipment damage. Islanding can causes very dangerous or abnormal situation for both people and apparatus, So islanding should be quickly determine by inverters and protective relays. Islanding finding out through passive method examines system specification without inducing any interruption and disturbance into the grid (EPS). In this propose

关键词： distributed Generation Islanding Detection Micro-grids PV Array Passive Method

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Investigation Over/Under-Voltage Protection of Passive Islanding Detection Method of distributed Generations in Electrical Distribution Systems

Investigation Over/Under-Voltage Protection of Passive Islan...

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international conference on Renewable Energy Research and Applications

作者： Manop Yingram Suttichai Premrudeepreechacharn Department of Electrical Engineering Chiang Mai University Chiang Mai Thailand

ISBN: (纸本)9781467323284

The objective of this paper is to investigate over/under-voltage protection (OVP/UVP) of passive islanding detection method of distributed generations in electrical distribution systems. The IEEE 14-bus system is simulated with Powerworld simulator. The studies show relationship between load and NDZ with DG in power system. The simulation results have showed that the change of load will affect the rate of transfer of AP uneven. If OVP/UVP of passive islanding detection method used algorithm with AP/P equation for decision, it may not be able to detect islanding condition In addition, if the multiple DGs in electrical distribution systems can replace active power of utility system, the OVP/UVP of passive islanding detection method cannot detected the state of islanding.

关键词： grid-Connected Islanding Detection distributed Generation

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A Maximum Power Control Scheme based on Multi-Agent System for distributed Flexible Network Photovoltaic System

A Maximum Power Control Scheme based on Multi-Agent System f...

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international conference on Renewable Energy Research and Applications

作者： Sangsoo Park Yushi Miura Toshifumi Ise Division of Electrical Electronic and Information Engineering Osaka University Osaka Japan

ISBN: (纸本)9781467323284

The distributed flexible network PV (photovoltaic) system is a kind of dc micro-grid which is composed of several PV generation systems, a battery bank and loads. Controller of each converter takes local information and control the converter autonomously. However, there are several problems like voltage rise in dc link causing loss of maximum power control by sudden change of circumstances like as the change of irradiance and load. The authors propose introducing MAS (multi-agent system) to solve those problems. The control method is implemented and validated by experiment. Agents are implemented through DSP (digital signal processor) and CAN (controller area network) communication.

关键词： component distributed flexible network photovoltaic system dc-microgrid smartgrid autonomous control multi agent system

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A Novel Bridge Type DC-DC Converter for Hybrid Energy Source Integration

A Novel Bridge Type DC-DC Converter for Hybrid Energy Source...

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international conference on Power Electronics, Intelligent Control and Energy Systems

作者： Sivaprasad A. Gangavarapu Gum Kumar Kumaravel S. Ashok S. Department of Electrical Engineering National Institute of Technology Calicut

ISBN: (纸本)9781467385886

Different types of multiple input DC-DC converter has been proposed by number of researchers for the integration of more than one energy sources. The development of a suitable power electronic interface is very much essential for the integration of those sources with less component counts. The implementation of a novel dual input bridge type DC-DC converter for hybrid energy source integrationis discussed in this paper. The converter can accommodate two sources with single inductor and capacitor at the output side. The converter is well suitable for the effective integration of renewable sources like solar-PV, wind and other low voltage sources like fuel cells and battery banks etc The Computer simulations of the proposed converter topology using MATLAB/Simulink platform has been carried out and results are presented. An experimental prototype is also built in the laboratory environment in order to verify the theoretical results.

关键词： distributed Generation Micro grid Multi Input DC-DC Converter Power Electronics Hybrid Energy System

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Design and Control of Wind-Solar Energy System with DFIG Feeding a 3-Phase 4-Wire Network

Design and Control of Wind-Solar Energy System with DFIG Fee...

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international conference on Power Electronics, Intelligent Control and Energy Systems

作者： S.K. Tiwari Bhim Singh P.K. Goel Electrical Engineering Department IIT Delhi Electrical Engineering Department IIT Delhi South Delhi Municipal Corporation

ISBN: (纸本)9781467385886

This paper presents the design and control of a distributed generation system using wind and solar PV (Photovoltaic) energy sources feeding to a 3-phase 4-wire network. The wind energy conversion system consists of a wind turbine coupled to DFIG (Double Fed Induction Generator) equipped with MPPT (Maximum Power Point Tracking). The MPPT demands speed control which is realized using vector control of the rotor side converter. The voltage and frequency control is achieved through load side converter connected to the common DC bus. Solar PV power is fed to the same DC bus using DC-DC boost converter which is also equipped with MPPT algorithm to extract maximum energy from the incident solar energy. The system is modeled in Sim-Power System tool of MATLAB and its performance under all the practical conditions e.g. varying wind speed and radiation;unbalanced and nonlinear load is presented. Under all these conditions;the stator currents flowing through DFIG are balanced and sinusoidal. The harmonics in load voltage under all conditions are within requirement of IEEE 519 standard. The scheme doesn't envisage measurement of any mechanical quantities e.g. wind speed or rotor position. Finally the effectiveness of the system is demonstrated experimentally using a 3.7 kW DFIG and a 5 kW solar array simulator.

关键词： Renewable Energy System Solar PV Energy Wind Energy Hybrid System DFIG Micro-grid Vector Control and Battery Energy storage System Power Quality

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The next generation neutrino telescope: IceCube-Gen2 38

The next generation neutrino telescope: IceCube-Gen2

引用

38th international Cosmic Ray conference, ICRC 2023

作者： Abbasi, R. Ackermann, M. Adams, J. Agarwalla, S.K. Aguilar, J.A. Ahlers, M. Alameddine, J.M. Amin, N.M. Andeen, K. Anton, G. Argüelles, C. Ashida, Y. Athanasiadou, S. Audehm, J. Axani, S.N. Bai, X. Balagopal, A.V. Baricevic, M. Barwick, S.W. Basu, V. Bay, R. Becker Tjus, J. Beise, J. Bellenghi, C. Benning, C. BenZvi, S. Berley, D. Bernardini, E. Besson, D.Z. Bishop, A. Blaufuss, E. Blot, S. Bohmer, M. Bontempo, F. Book, J.Y. Borowka, J. Boscolo Meneguolo, C. Böser, S. Botner, O. Böttcher, J. Bouma, S. Bourbeau, E. Braun, J. Brinson, B. Brostean-Kaiser, J. Burley, R.T. Busse, R.S. Butterfield, D. Campana, M.A. Carloni, K. Carnie-Bronca, E.G. Cataldo, M. Chattopadhyay, S. Chau, N. Chen, C. Chen, Z. Chirkin, D. Choi, S. Clark, B.A. Clark, R. Classen, L. Coleman, A. Collin, G.H. Conrad, J.M. Cowen, D.F. Dasgupta, B. Dave, P. Deaconu, C. De Clercq, C. De Kockere, S. DeLaunay, J.J. Delgado, D. Deng, S. Deoskar, K. Desai, A. Desiati, P. de Vries, K.D. de Wasseige, G. DeYoung, T. Diaz, A. Díaz-Vélez, J.C. Dittmer, M. Domi, A. Dujmovic, H. DuVernois, M.A. Ehrhardt, T. Eller, P. Ellinger, E. El Mentawi, S. Elsässer, D. Engel, R. Erpenbeck, H. Evans, J. Evans, J.J. Evenson, P.A. Fan, K.L. Fang, K. Farrag, K. Farrag, K. Fazely, A.R. Fedynitch, A. Feigl, N. Fiedlschuster, S. Finley, C. Fischer, L. Flaggs, B. Fox, D. Franckowiak, A. Fritz, A. Fujii, T. Fürst, P. Gallagher, J. Ganster, E. Garcia, A. Gerhardt, L. Gernhaeuser, R. Ghadimi, A. Giri, P. Glaser, C. Glauch, T. Glüsenkamp, T. Goehlke, N. Goswami, S. Grant, D. Gray, S.J. Gries, O. Griffin, S. Griswold, S. Guevel, D. Günther, C. Gutjahr, P. Haack, C. Haji Azim, T. Hallgren, A. Halliday, R. Hallmann, S. Halve, L. Halzen, F. Hamdaoui, H. Ha Minh, M. Hanson, K. Hardin, J. Harnisch, A.A. Hatch, P. Haugen, J. Haungs, A. Heinen, D. Helbing, K. Hellrung, J. Hendricks, B. Henningsen, F. Henrichs, J. Heuermann, L. Heyer, N. Hickford, S. Hidvegi, A. Hignight, J. Hill, C. III. Physikalisches Institut RWTH Aachen University AachenD-52056 Germany Department of Physics University of Adelaide Adelaide5005 Australia Dept. of Physics and Astronomy University of Alaska Anchorage 3211 Providence Dr. AnchorageAK99508 United States Dept. of Physics University of Texas at Arlington 502 Yates St. Science Hall Rm 108 Box 19059 ArlingtonTX76019 United States CTSPS Clark-Atlanta University AtlantaGA30314 United States School of Physics Center for Relativistic Astrophysics Georgia Institute of Technology AtlantaGA30332 United States Dept. of Physics Southern University Baton RougeLA70813 United States Dept. of Physics University of California BerkeleyCA94720 United States Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Institut für Physik Humboldt-Universität zu Berlin BerlinD-12489 Germany Fakultät für Physik & Astronomie Ruhr-Universität Bochum BochumD-44780 Germany Université Libre de Bruxelles Science Faculty CP230 BrusselsB-1050 Belgium Dienst ELEM BrusselsB-1050 Belgium Department of Physics Laboratory for Particle Physics and Cosmology Harvard University CambridgeMA02138 United States Dept. of Physics Massachusetts Institute of Technology CambridgeMA02139 United States Dept. of Physics The International Center for Hadron Astrophysics Chiba University Chiba263-8522 Japan Department of Physics Loyola University Chicago ChicagoIL60660 United States Dept. of Astronomy and Astrophysics University of Chicago ChicagoIL60637 United States Dept. of Physics University of Chicago ChicagoIL60637 United States Enrico Fermi Institute University of Chicago ChicagoIL60637 United States Kavli Institute for Cosmological Physics University of Chicago ChicagoIL60637 United States Dept. of Physics and Astronomy University of Canterbury Private Bag 4800 Christchurch New Zealand Dept. of Physics University of Maryland College ParkMD20742 United States Dept. of Astronomy Ohio Sta

The IceCube Neutrino Observatory, a cubic-kilometer-scale neutrino detector at the geographic South Pole, has reached a number of milestones in the field of neutrino astrophysics: the discovery of a high-energy astrophysical neutrino flux, the temporal and directional correlation of neutrinos with a flaring blazar, and a steady emission of neutrinos from the direction of an active galaxy of a Seyfert II type and the Milky Way. The next generation neutrino telescope, IceCube-Gen2, currently under development, will consist of three essential components: an array of about 10,000 optical sensors, embedded within approximately 8 cubic kilometers of ice, for detecting neutrinos with energies of TeV and above, with a sensitivity five times greater than that of IceCube;a surface array with scintillation panels and radio antennas targeting air showers;and buried radio antennas distributed over an area of more than 400 square kilometers to significantly enhance the sensitivity of detecting neutrino sources beyond EeV. This contribution describes the design and status of IceCube-Gen2 and discusses the expected sensitivity from the simulations of the optical, surface, and radio components. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Telescopes

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Concept study of a Radio Array Embedded in a Deep Gen2-like Optical Array 37

Concept Study of a Radio Array Embedded in a Deep Gen2-like ...

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37th international Cosmic Ray conference, ICRC 2021

作者： Abbasi, R. Ackermann, M. Adams, J. Aguilar, J.A. Ahlers, M. Ahrens, M. Alispach, C. Allison, P. Alves, A.A. Amin, N.M. An, R. Andeen, K. Anderson, T. Anton, G. Argüelles, C. Arlen, T.C. Ashida, Y. Axani, S. Bai, X. Balagopal, A.V. Barbano, A. Bartos, I. Barwick, S.W. Bastian, B. Basu, V. Baur, S. Bay, R. Beatty, J.J. Becker, K.-H. Becker Tjus, J. Bellenghi, C. BenZvi, S. Berley, D. Bernardini, E. Besson, D.Z. Binder, G. Bindig, D. Bishop, A. Blaufuss, E. Blot, S. Boddenberg, M. Bohmer, M. Bontempo, F. Borowka, J. Böser, S. Botner, O. Böttcher, J. Bourbeau, E. Bradascio, F. Braun, J. Bron, S. Brostean-Kaiser, J. Browne, S. Burgman, A. Burley, R.T. Busse, R.S. Campana, M.A. Carnie-Bronca, E.G. Cataldo, M. Chen, C. Chirkin, D. Choi, K. Clark, B.A. Clark, K. Clark, R. Classen, L. Coleman, A. Collin, G.H. Connolly, A. Conrad, J.M. Coppin, P. Correa, P. Cowen, D.F. Cross, R. Dappen, C. Dave, P. Deaconu, C. De Clercq, C. De Kockere, S. DeLaunay, J.J. Dembinski, H. Deoskar, K. De Ridder, S. Desai, A. Desiati, P. de Vries, K.D. de Wasseige, G. de With, M. DeYoung, T. Dharani, S. Diaz, A. Díaz-Vélez, J.C. Dittmer, M. Dujmovic, H. Dunkman, M. DuVernois, M.A. Dvorak, E. Ehrhardt, T. Eller, P. Engel, R. Erpenbeck, H. Evans, J. Evans, J.J. Evenson, P.A. Fan, K.L. Farrag, K. Fazely, A.R. Fiedlschuster, S. Fienberg, A.T. Filimonov, K. Finley, C. Fischer, L. Fox, D. Franckowiak, A. Friedman, E. Fritz, A. Fürst, P. Gaisser, T.K. Gallagher, J. Ganster, E. Garcia, A. Garrappa, S. Gartner, A. Gerhardt, L. Gernhaeuser, R. Ghadimi, A. Giri, P. Glaser, C. Glauch, T. Glüsenkamp, T. Goldschmidt, A. Gonzalez, J.G. Goswami, S. Grant, D. Grégoire, T. Griswold, S. Gündüz, M. Günther, C. Haack, C. Hallgren, A. Halliday, R. Hallmann, S. Halve, L. Halzen, F. Ha Minh, M. Hanson, K. Hardin, J. Harnisch, A.A. Haugen, J. Haungs, A. Hauser, S. Hebecker, D. Heinen, D. Helbing, K. Hendricks, B. Henningsen, F. Hettinger, E.C. III. Physikalisches Institut RWTH Aachen University AachenD-52056 Germany Department of Physics University of Adelaide Adelaide5005 Australia Dept. of Physics and Astronomy University of Alaska Anchorage 3211 Providence Dr. AnchorageAK99508 United States Dept. of Physics University of Texas at Arlington 502 Yates St. Science Hall Rm 108 Box 19059 ArlingtonTX76019 United States CTSPS Clark-Atlanta University AtlantaGA30314 United States School of Physics Center for Relativistic Astrophysics Georgia Institute of Technology AtlantaGA30332 United States Dept. of Physics Southern University Baton RougeLA70813 United States Dept. of Physics University of California BerkeleyCA94720 United States Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Institut für Physik Humboldt-Universität zu Berlin BerlinD-12489 Germany Fakultät für Physik & Astronomie Ruhr-Universität Bochum BochumD-44780 Germany Université Libre de Bruxelles Science Faculty CP230 BrusselsB-1050 Belgium Dienst ELEM BrusselsB-1050 Belgium Department of Physics Laboratory for Particle Physics and Cosmology Harvard University CambridgeMA02138 United States Dept. of Physics Massachusetts Institute of Technology CambridgeMA02139 United States Dept. of Physics Institute for Global Prominent Research Chiba University Chiba263-8522 Japan Department of Physics Loyola University Chicago ChicagoIL60660 United States Dept. of Astronomy and Astrophysics University of Chicago ChicagoIL60637 United States Dept. of Physics University of Chicago ChicagoIL60637 United States Enrico Fermi Institute University of Chicago ChicagoIL60637 United States Kavli Institute for Cosmological Physics University of Chicago ChicagoIL60637 United States Dept. of Physics and Astronomy University of Canterbury Private Bag 4800 Christchurch New Zealand Dept. of Physics University of Maryland College ParkMD20742 United States Dept. of Astronomy Ohio State Univers

The IceCube Neutrino Observatory has discovered a diffuse astrophysical flux up to 10 PeV and is now planning a large extension with IceCube-Gen2, including an optical array and a large radio array at shallow depth [1]. Neutrino searches for energies >100 PeV are best done with such shallow radio detectors like the Askaryan Radio Array (ARA) or similar (buried as deep as 200 meters below the surface) as they are cheaper to deploy. This poster explores the potential of opportunistically burying radio antennas within the planned IceCube-Gen2 detector volume (between 1350 meters and 2600 meters below the surface). A hybrid detection of events in optical and radio could substantially improve the uncertainty of neutrino cascade direction as radio signals do not scatter in ice. We show the first results of simulating neutrinos from an astrophysical and a cosmogenic flux interacting with 9760 ARA-style vertically polarized radio antennas distributed evenly across 122 strings. © Copyright owned by the author(s).

关键词： Neutrons

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An improved infrastructure for the IceCube realtime system 38

An improved infrastructure for the IceCube realtime system

引用

38th international Cosmic Ray conference, ICRC 2023

作者： Abbasi, R. Ackermann, M. Adams, J. Agarwalla, S.K. Aguilar, J.A. Ahlers, M. Alameddine, J.M. Amin, N.M. Andeen, K. Anton, G. Argüelles, C. Ashida, Y. Athanasiadou, S. Axani, S.N. Bai, X. Balagopal, A.V. Baricevic, M. Barwick, S.W. Basu, V. Bay, R. Beatty, J.J. Becker Tjus, J. Beise, J. Bellenghi, C. Benning, C. BenZvi, S. Berley, D. Bernardini, E. Besson, D.Z. Blaufuss, E. Blot, S. Bontempo, F. Book, J.Y. Boscolo Meneguolo, C. Böser, S. Botner, O. Böttcher, J. Bourbeau, E. Braun, J. Brinson, B. Brostean-Kaiser, J. Burley, R.T. Busse, R.S. Butterfield, D. Campana, M.A. Carloni, K. Carnie-Bronca, E.G. Chattopadhyay, S. Chau, N. Chen, C. Chen, Z. Chirkin, D. Choi, S. Clark, B.A. Classen, L. Coleman, A. Collin, G.H. Connolly, A. Conrad, J.M. Coppin, P. Correa, P. Cowen, D.F. Dave, P. De Clercq, C. DeLaunay, J.J. Delgado, D. Deng, S. Deoskar, K. Desai, A. Desiati, P. de Vries, K.D. de Wasseige, G. DeYoung, T. Diaz, A. Díaz-Vélez, J.C. Dittmer, M. Domi, A. Dujmovic, H. DuVernois, M.A. Ehrhardt, T. Eller, P. Ellinger, E. El Mentawi, S. Elsässer, D. Engel, R. Erpenbeck, H. Evans, J. Evenson, P.A. Fan, K.L. Fang, K. Farrag, K. Fazely, A.R. Fedynitch, A. Feigl, N. Fiedlschuster, S. Finley, C. Fischer, L. Fox, D. Franckowiak, A. Fritz, A. Fürst, P. Gallagher, J. Ganster, E. Garcia, A. Gerhardt, L. Ghadimi, A. Glaser, C. Glauch, T. Glüsenkamp, T. Goehlke, N. Gonzalez, J.G. Goswami, S. Grant, D. Gray, S.J. Gries, O. Griffin, S. Griswold, S. Groth, K.M. Günther, C. Gutjahr, P. Haack, C. Hallgren, A. Halliday, R. Halve, L. Halzen, F. Hamdaoui, H. Ha Minh, M. Hanson, K. Hardin, J. Harnisch, A.A. Hatch, P. Haungs, A. Helbing, K. Hellrung, J. Henningsen, F. Heuermann, L. Heyer, N. Hickford, S. Hidvegi, A. Hill, C. Hill, G.C. Hoffman, K.D. Hori, S. Hoshina, K. Hou, W. Huber, T. Hultqvist, K. Hünnefeld, M. Hussain, R. Hymon, K. In, S. Ishihara, A. Jacquart, M. Janik, O. Jansson, M. Japaridze, G.S. Jeong, M. III. Physikalisches Institut RWTH Aachen University AachenD-52056 Germany Department of Physics University of Adelaide Adelaide5005 Australia Dept. of Physics and Astronomy University of Alaska Anchorage 3211 Providence Dr. AnchorageAK99508 United States Dept. of Physics University of Texas at Arlington 502 Yates St. Science Hall Rm 108 Box 19059 ArlingtonTX76019 United States CTSPS Clark-Atlanta University AtlantaGA30314 United States School of Physics Center for Relativistic Astrophysics Georgia Institute of Technology AtlantaGA30332 United States Dept. of Physics Southern University Baton RougeLA70813 United States Dept. of Physics University of California BerkeleyCA94720 United States Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Institut für Physik Humboldt-Universität zu Berlin BerlinD-12489 Germany Fakultät für Physik & Astronomie Ruhr-Universität Bochum BochumD-44780 Germany Université Libre de Bruxelles Science Faculty CP230 BrusselsB-1050 Belgium Dienst ELEM BrusselsB-1050 Belgium Department of Physics Laboratory for Particle Physics and Cosmology Harvard University CambridgeMA02138 United States Dept. of Physics Massachusetts Institute of Technology CambridgeMA02139 United States Dept. of Physics The International Center for Hadron Astrophysics Chiba University Chiba263-8522 Japan Department of Physics Loyola University Chicago ChicagoIL60660 United States Dept. of Physics and Astronomy University of Canterbury Private Bag 4800 Christchurch New Zealand Dept. of Physics University of Maryland College ParkMD20742 United States Dept. of Astronomy Ohio State University ColumbusOH43210 United States Dept. of Physics Center for Cosmology and Astro-Particle Physics Ohio State University ColumbusOH43210 United States Niels Bohr Institute University of Copenhagen CopenhagenDK-2100 Denmark Dept. of Physics TU Dortmund University DortmundD-44221 Germany Dept. of Physics and Astro

The IceCube realtime alert system has been operating since 2016. It provides prompt alerts on high-energy neutrino events to the astroparticle physics community. The localization regions for the incoming direction of neutrinos are published through NASA’s Gamma-ray Coordinate Network (GCN). The IceCube realtime system consists of infrastructure dedicated to the selection of alert events, the reconstruction of their topology and arrival direction, the calculation of directional uncertainty contours and the distribution of the event information through public alert networks. Using a message-based workflow management system, a dedicated software (SkyDriver) provides a representational state transfer (REst) interface to parallelized reconstruction algorithms. In this contribution, we outline the improvements of the internal infrastructure of the IceCube realtime system that aims to streamline the internal handling of neutrino events, their distribution to the SkyDriver interface, the collection of the reconstruction results as well as their conversion into human- and machine-readable alerts to be publicly distributed through different alert networks. An approach for the long-term storage and cataloging of alert events according to findability, accessibility, interoperability and reusability (FAIR) principles is outlined. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： NASA

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A next-generation optical sensor for IceCube-Gen2 37

A next-generation optical sensor for IceCube-Gen2

引用

37th international Cosmic Ray conference, ICRC 2021

作者： Basu, Vedant Ishihara, Aya Dittmer, Markus Shimizu, Nobuhiro Abbasi, R. Ackermann, M. Adams, J. Aguilar, J.A. Ahlers, M. Ahrens, M. Alispach, C. Allison, P. Alves, A.A. Amin, N.M. An, R. Andeen, K. Anderson, T. Anton, G. Argüelles, C. Arlen, T.C. Ashida, Y. Axani, S. Bai, X. Balagopal, A.V. Barbano, A. Bartos, I. Barwick, S.W. Bastian, B. Basu, V. Baur, S. Bay, R. Beatty, J.J. Becker, K.-H. Becker Tjus, J. Bellenghi, C. BenZvi, S. Berley, D. Bernardini, E. Besson, D.Z. Binder, G. Bindig, D. Bishop, A. Blaufuss, E. Blot, S. Boddenberg, M. Bohmer, M. Bontempo, F. Borowka, J. Böser, S. Botner, O. Böttcher, J. Bourbeau, E. Bradascio, F. Braun, J. Bron, S. Brostean-Kaiser, J. Browne, S. Burgman, A. Burley, R.T. Busse, R.S. Campana, M.A. Carnie-Bronca, E.G. Cataldo, M. Chen, C. Chirkin, D. Choi, K. Clark, B.A. Clark, K. Clark, R. Classen, L. Coleman, A. Collin, G.H. Connolly, A. Conrad, J.M. Coppin, P. Correa, P. Cowen, D.F. Cross, R. Dappen, C. Dave, P. Deaconu, C. De Clercq, C. De Kockere, S. DeLaunay, J.J. Dembinski, H. Deoskar, K. De Ridder, S. Desai, A. Desiati, P. de Vries, K.D. de Wasseige, G. de With, M. DeYoung, T. Dharani, S. Diaz, A. Díaz-Vélez, J.C. Dittmer, M. Dujmovic, H. Dunkman, M. DuVernois, M.A. Dvorak, E. Ehrhardt, T. Eller, P. Engel, R. Erpenbeck, H. Evans, J. Evans, J.J. Evenson, P.A. Fan, K.L. Farrag, K. Fazely, A.R. Fiedlschuster, S. Fienberg, A.T. Filimonov, K. Finley, C. Fischer, L. Fox, D. Franckowiak, A. Friedman, E. Fritz, A. Fürst, P. Gaisser, T.K. Gallagher, J. Ganster, E. Garcia, A. Garrappa, S. Gartner, A. Gerhardt, L. Gernhaeuser, R. Ghadimi, A. Giri, P. Glaser, C. Glauch, T. Glüsenkamp, T. Goldschmidt, A. Gonzalez, J.G. Goswami, S. Grant, D. Grégoire, T. Griswold, S. Gündüz, M. Günther, C. Haack, C. Hallgren, A. Halliday, R. Hallmann, S. Halve, L. Halzen, F. Ha Minh, M. Hanson, K. Hardin, J. Harnisch, A.A. Haugen, J. Haungs, A. Hauser, S. WIPAC UW Madison WI53706 United States ICEHAP Chiba University Chiba Japan Institut für Kernphysik Westfälische Wilhelms-Universität Münster Germany III. Physikalisches Institut RWTH Aachen University AachenD-52056 Germany Department of Physics University of Adelaide Adelaide5005 Australia Dept. of Physics and Astronomy University of Alaska Anchorage 3211 Providence Dr. AnchorageAK99508 United States Dept. of Physics University of Texas at Arlington 502 Yates St. Science Hall Rm 108 Box 19059 ArlingtonTX76019 United States CTSPS Clark-Atlanta University AtlantaGA30314 United States School of Physics Center for Relativistic Astrophysics Georgia Institute of Technology AtlantaGA30332 United States Dept. of Physics Southern University Baton RougeLA70813 United States Dept. of Physics University of California BerkeleyCA94720 United States Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Institut für Physik Humboldt-Universität zu Berlin BerlinD-12489 Germany Fakultät für Physik & Astronomie Ruhr-Universität Bochum BochumD-44780 Germany Université Libre de Bruxelles Science Faculty CP230 BrusselsB-1050 Belgium Dienst ELEM BrusselsB-1050 Belgium Department of Physics Laboratory for Particle Physics and Cosmology Harvard University CambridgeMA02138 United States Dept. of Physics Massachusetts Institute of Technology CambridgeMA02139 United States Dept. of Physics Institute for Global Prominent Research Chiba University Chiba263-8522 Japan Department of Physics Loyola University Chicago ChicagoIL60660 United States Dept. of Astronomy and Astrophysics University of Chicago ChicagoIL60637 United States Dept. of Physics University of Chicago ChicagoIL60637 United States Enrico Fermi Institute University of Chicago ChicagoIL60637 United States Kavli Institute for Cosmological Physics University of Chicago ChicagoIL60637 United States Dept. of Physics and Astronomy University of Canterbury Pri

For the in-ice component of the next generation neutrino observatory at the South Pole, IceCubeGen2, a new sensor module is being developed, which is an evolution of the D-Egg and mDOM sensors developed for the IceCube Upgrade. The sensor design features up to 18 4-inch PMTs distributed homogeneously in a borosilicate glass pressure vessel. Challenges arise for the mechanical design from the tight constraints on the bore hole diameter (which will be 2 inches smaller than for IceCube Upgrade) and from the close packing of the PMTs. The electronics design must meet the space constraints posed by the mechanical design as well as the power consumption and cost considerations from over 10,000 optical modules being deployed. This contribution presents forward-looking solutions to these design considerations. Prototype modules will be installed and integrated in the IceCube Upgrade. © Copyright owned by the author(s).

关键词： Borosilicate glass

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