تطوير دارة تحكم بالتوافقيات العالية في شبكة معزولة بواسطة قالبة رباعية الأطوار
Abstract
في الوقت الحالي ينتشر استخدام الشبكات الكهربائية المعزولة للإمداد بالطاقة الكهربائية وخاصة في المناطق البعيدة عن مراكز المدن، حيث تكون مصادر الطاقة هي الطاقات المتجددة مثل الطاقة الشمسية، وطاقة الرياح.
من أكبر المشكلات التي تواجه الشبكات الكهربائية المعزولة هي الحمولات غير المتزنة التي تسبب عدم تناظر في جهود أطوار هذه الشبكات. ونتيجة الاستخدام المتزايد لإلكترونيات القدرة في جميع المجالات الصناعية، والمنزلية تنشأ التوافقيات العالية في جهود هذه الشبكات.
من خلال استخدام قالبة رباعية الأطوار، وإستراتيجية تحكم بالتوافقيات العالية للنظام المباشر، والنظام المعاكس، وكذلك التحكم بالتيار المار في الخط الحيادي (النظام الصفري)- نتيجة الحمولة غير المتزنة- عن طريق الطور الرابع للقالبة؛ نحصل على جهد ثلاثي الطور، متناظر، يكون محتوى التوافقات فيه ضمن الحد المسموح به.
Currently it become common to use isolated electrical networks, and especially for the areas which are far from urban centers.The renewable energies, like solar and wind energy are suitable there.
One of the biggest problems facing the isolated electrical networks is unbalanced loads, which cause unsymmetry in the three-phase voltage of the network. As a result of the increasing of use of power electronics in houses and all aspects of industry, then high harmonics arise in the voltage of these networks.
Through the use of a 4 phase inverter with a control strategy of harmonics in the positive- sequence system and the negative- sequence system and current control, which flows in the neutral line- by the fourth phase of inverter- we get a symmetrical three-phase voltage with harmonics content at the allowed limits.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2019 �ttps://creativecommons.org/licenses/by-nc-sa/4.0/

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.