2024-03-29T08:52:23Z
http://ijet.pl/index.php/ijet/oai
oai:ojs.ijet.ise.pw.edu.pl:article/3894
2022-11-30T22:59:34Z
ijet:PHOTOVOLT
v2
http://ijet.pl/index.php/ijet/article/view/10.24425-ijet.2022.143895
2022-11-30T22:59:34Z
International Journal of Electronics and Telecommunications
Vol 68, No 4 (2022); 863-866
Application of a control algorithm for the master unit of a distributed photovoltaic system
http://ijet.pl/index.php/ijet/article/download/3894/12033
http://ijet.pl/index.php/ijet/article/download/3894/12034
Świderski, Mariusz; Poznan University of Technology, Faculty of Control, Robotics and Electrical Engineering,
Gąsiorek, Amadeusz; Poznan University of Technology, Faculty of Control, Robotics and Electrical Engineering,
2022-11-30 23:52:24
1. LicenseThe non-commercial use of the article will be governed by the Creative Commons Attribution license as currently displayed on https://creativecommons.org/licenses/by/4.0/.2. Author’s WarrantiesThe author warrants that the article is original, written by stated author/s, has not been published before, contains no unlawful statements, does not infringe the rights of others, is subject to copyright that is vested exclusively in the author and free of any third party rights, and that any necessary written permissions to quote from other sources have been obtained by the author/s. The undersigned also warrants that the manuscript (or its essential substance) has not been published other than as an abstract or doctorate thesis and has not been submitted for consideration elsewhere, for print, electronic or digital publication.3. User RightsUnder the Creative Commons Attribution license, the author(s) and users are free to share (copy, distribute and transmit the contribution) under the following conditions: 1. they must attribute the contribution in the manner specified by the author or licensor, 2. they may alter, transform, or build upon this work, 3. they may use this contribution for commercial purposes.4. Rights of AuthorsAuthors retain the following rights:- copyright, and other proprietary rights relating to the article, such as patent rights,- the right to use the substance of the article in own future works, including lectures and books,- the right to reproduce the article for own purposes, provided the copies are not offered for sale,- the right to self-archive the article- the right to supervision over the integrity of the content of the work and its fair use.5. Co-AuthorshipIf the article was prepared jointly with other authors, the signatory of this form warrants that he/she has been authorized by all co-authors to sign this agreement on their behalf, and agrees to inform his/her co-authors of the terms of this agreement.6. TerminationThis agreement can be terminated by the author or the Journal Owner upon two months’ notice where the other party has materially breached this agreement and failed to remedy such breach within a month of being given the terminating party’s notice requesting such breach to be remedied. No breach or violation of this agreement will cause this agreement or any license granted in it to terminate automatically or affect the definition of the Journal Owner. The author and the Journal Owner may agree to terminate this agreement at any time. This agreement or any license granted in it cannot be terminated otherwise than in accordance with this section 6. This License shall remain in effect throughout the term of copyright in the Work and may not be revoked without the express written consent of both parties.7. RoyaltiesThis agreement entitles the author to no royalties or other fees. To such extent as legally permissible, the author waives his or her right to collect royalties relative to the article in respect of any use of the article by the Journal Owner or its sublicensee.8. MiscellaneousThe Journal Owner will publish the article (or have it published) in the Journal if the article’s editorial process is successfully completed and the Journal Owner or its sublicensee has become obligated to have the article published. Where such obligation depends on the payment of a fee, it shall not be deemed to exist until such time as that fee is paid. The Journal Owner may conform the article to a style of punctuation, spelling, capitalization and usage that it deems appropriate. The Journal Owner will be allowed to sublicense the rights that are licensed to it under this agreement. This agreement will be governed by the laws of Poland.By signing this License, Author(s) warrant(s) that they have the full power to enter into this agreement. This License shall remain in effect throughout the term of copyright in the Work and may not be revoked without the express written consent of both parties.
url:http://ijet.pl/index.php/ijet/article/view/10.24425-ijet.2022.143895
automation, electronic and electrical engineering
en
The presented distributed photovoltaic system is made of divided into individual modules photovoltaic panel, consisting of several photovoltaic cells properly connected and coupling them with low-power DC / DC converters. The essence of the research is to increase the reliability of the system and the resultant efficiency of the entire system, so that it is possible to convert solar radiation energy into electricity with the greatest efficiency. The article focuses on the presentation of the implementation and tests of the overriding control algorithm, the task of which is to provide full functionality fora distributed photovoltaic system. The control is designed to minimize the negative effects of shadows on the operation of the photovoltaic system and conduct self-diagnostics. The conclusion for the carried out work is the formulation of hardware and interface requirements for the further development of the project.
oai:ojs.ijet.ise.pw.edu.pl:article/178
2015-03-10T23:31:30Z
ijet:PHOTOVOLT
v2
http://ijet.pl/index.php/ijet/article/view/10.2478-eletel-2014-0041
2015-03-10T23:31:30Z
International Journal of Electronics and Telecommunications
Vol 60, No 4 (2014); 315-320
Estimation of Solar Irradiation on Inclined Surface Based on Web Databases
Mazurek, Gustaw; Warsaw University of Technology
2014-12-10 21:34:41
1. LicenseThe non-commercial use of the article will be governed by the Creative Commons Attribution license as currently displayed on https://creativecommons.org/licenses/by/4.0/.2. Author’s WarrantiesThe author warrants that the article is original, written by stated author/s, has not been published before, contains no unlawful statements, does not infringe the rights of others, is subject to copyright that is vested exclusively in the author and free of any third party rights, and that any necessary written permissions to quote from other sources have been obtained by the author/s. The undersigned also warrants that the manuscript (or its essential substance) has not been published other than as an abstract or doctorate thesis and has not been submitted for consideration elsewhere, for print, electronic or digital publication.3. User RightsUnder the Creative Commons Attribution license, the author(s) and users are free to share (copy, distribute and transmit the contribution) under the following conditions: 1. they must attribute the contribution in the manner specified by the author or licensor, 2. they may alter, transform, or build upon this work, 3. they may use this contribution for commercial purposes.4. Rights of AuthorsAuthors retain the following rights:- copyright, and other proprietary rights relating to the article, such as patent rights,- the right to use the substance of the article in own future works, including lectures and books,- the right to reproduce the article for own purposes, provided the copies are not offered for sale,- the right to self-archive the article- the right to supervision over the integrity of the content of the work and its fair use.5. Co-AuthorshipIf the article was prepared jointly with other authors, the signatory of this form warrants that he/she has been authorized by all co-authors to sign this agreement on their behalf, and agrees to inform his/her co-authors of the terms of this agreement.6. TerminationThis agreement can be terminated by the author or the Journal Owner upon two months’ notice where the other party has materially breached this agreement and failed to remedy such breach within a month of being given the terminating party’s notice requesting such breach to be remedied. No breach or violation of this agreement will cause this agreement or any license granted in it to terminate automatically or affect the definition of the Journal Owner. The author and the Journal Owner may agree to terminate this agreement at any time. This agreement or any license granted in it cannot be terminated otherwise than in accordance with this section 6. This License shall remain in effect throughout the term of copyright in the Work and may not be revoked without the express written consent of both parties.7. RoyaltiesThis agreement entitles the author to no royalties or other fees. To such extent as legally permissible, the author waives his or her right to collect royalties relative to the article in respect of any use of the article by the Journal Owner or its sublicensee.8. MiscellaneousThe Journal Owner will publish the article (or have it published) in the Journal if the article’s editorial process is successfully completed and the Journal Owner or its sublicensee has become obligated to have the article published. Where such obligation depends on the payment of a fee, it shall not be deemed to exist until such time as that fee is paid. The Journal Owner may conform the article to a style of punctuation, spelling, capitalization and usage that it deems appropriate. The Journal Owner will be allowed to sublicense the rights that are licensed to it under this agreement. This agreement will be governed by the laws of Poland.By signing this License, Author(s) warrant(s) that they have the full power to enter into this agreement. This License shall remain in effect throughout the term of copyright in the Work and may not be revoked without the express written consent of both parties.
url:http://ijet.pl/index.php/ijet/article/view/10.2478-eletel-2014-0041
Photovoltaics; Solar Radiation Databases
en
Estimation of Global Tilted Irradiation (GTI) is a key to performance assessment of typical solar systems since they usually employ tilted photovoltaic (PV) modules or collectors.Numerous solar radiation databases can deliver irradiation values both on horizontal and tilted plane,however they are validated mostly with horizontal-plane ground measurements.In this paper we have compared GTI estimates retrieved from five Internet databaseswith results of measurements at two PV systems located in Poland.Our work shows that in spite of good agreement in annual scale,there is a tendency to underestimate GTI in summer and overestimate in winter, when PV modules can receive less than a half of expected irradiation.The latter issue affects sizing of PV system components and implies a correction needed to achieve all-year long operation.
oai:ojs.ijet.ise.pw.edu.pl:article/3427
2021-08-31T09:43:27Z
ijet:PHOTOVOLT
v2
http://ijet.pl/index.php/ijet/article/view/10.24425-ijet.2021.137835
2021-08-31T09:43:27Z
International Journal of Electronics and Telecommunications
Vol 67, No 3 (2021); 465-470
Monitoring of PV inverters while unintentional islanding using PMU
http://ijet.pl/index.php/ijet/article/download/3427/10179
http://ijet.pl/index.php/ijet/article/download/3427/10181
Barczentewicz, Szymon Henryk; AGH University of Science and Technology
Lerch, Tomasz; AGH University of Science and Technology
Bień, Andrzej; AGH University of Science and Technology
2021-08-30 02:51:37
1. LicenseThe non-commercial use of the article will be governed by the Creative Commons Attribution license as currently displayed on https://creativecommons.org/licenses/by/4.0/.2. Author’s WarrantiesThe author warrants that the article is original, written by stated author/s, has not been published before, contains no unlawful statements, does not infringe the rights of others, is subject to copyright that is vested exclusively in the author and free of any third party rights, and that any necessary written permissions to quote from other sources have been obtained by the author/s. The undersigned also warrants that the manuscript (or its essential substance) has not been published other than as an abstract or doctorate thesis and has not been submitted for consideration elsewhere, for print, electronic or digital publication.3. User RightsUnder the Creative Commons Attribution license, the author(s) and users are free to share (copy, distribute and transmit the contribution) under the following conditions: 1. they must attribute the contribution in the manner specified by the author or licensor, 2. they may alter, transform, or build upon this work, 3. they may use this contribution for commercial purposes.4. Rights of AuthorsAuthors retain the following rights:- copyright, and other proprietary rights relating to the article, such as patent rights,- the right to use the substance of the article in own future works, including lectures and books,- the right to reproduce the article for own purposes, provided the copies are not offered for sale,- the right to self-archive the article- the right to supervision over the integrity of the content of the work and its fair use.5. Co-AuthorshipIf the article was prepared jointly with other authors, the signatory of this form warrants that he/she has been authorized by all co-authors to sign this agreement on their behalf, and agrees to inform his/her co-authors of the terms of this agreement.6. TerminationThis agreement can be terminated by the author or the Journal Owner upon two months’ notice where the other party has materially breached this agreement and failed to remedy such breach within a month of being given the terminating party’s notice requesting such breach to be remedied. No breach or violation of this agreement will cause this agreement or any license granted in it to terminate automatically or affect the definition of the Journal Owner. The author and the Journal Owner may agree to terminate this agreement at any time. This agreement or any license granted in it cannot be terminated otherwise than in accordance with this section 6. This License shall remain in effect throughout the term of copyright in the Work and may not be revoked without the express written consent of both parties.7. RoyaltiesThis agreement entitles the author to no royalties or other fees. To such extent as legally permissible, the author waives his or her right to collect royalties relative to the article in respect of any use of the article by the Journal Owner or its sublicensee.8. MiscellaneousThe Journal Owner will publish the article (or have it published) in the Journal if the article’s editorial process is successfully completed and the Journal Owner or its sublicensee has become obligated to have the article published. Where such obligation depends on the payment of a fee, it shall not be deemed to exist until such time as that fee is paid. The Journal Owner may conform the article to a style of punctuation, spelling, capitalization and usage that it deems appropriate. The Journal Owner will be allowed to sublicense the rights that are licensed to it under this agreement. This agreement will be governed by the laws of Poland.By signing this License, Author(s) warrant(s) that they have the full power to enter into this agreement. This License shall remain in effect throughout the term of copyright in the Work and may not be revoked without the express written consent of both parties.
url:http://ijet.pl/index.php/ijet/article/view/10.24425-ijet.2021.137835
electrical engineering
en
Unintentional islanding detection is one the mandatory criterion that must be met by PV inverters before connecting them into the grid. Inverters are capable of detecting islanding, acceptable time for detection is less than 2 seconds. In this paper voltage parameters after islanding occurrence and before turning off the inverter is analyzed. In order to simulate islanding state and perform measurements the testing system was build. Three different commercial PV inverters were tested. Measured signals were used to calculate voltage envelope, phasor, frequency and ROCOF. Collected data proved to be helpful to compere different Inverters.