Optimum design for hvdc grounding converter station / (Record no. 171185)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04933namaa22004211i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - أخر تعامل مع التسجيلة | |
| control field | 20250409121142.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250317s2024 |||a|||f m||| 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloguing agency | EG-GICUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GICUC |
| Modifying agency | EG-GICUC |
| Description conventions | rda |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| Language code of summary or abstract | eng |
| -- | ara |
| 049 ## - Acquisition Source | |
| Acquisition Source | Deposit |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 621.3 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) | |
| Classification number | 621.3 |
| Edition number | 21 |
| 097 ## - Degree | |
| Degree | Ph.D |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Local Call Number | Cai01.13.07.Ph.D.2024.Sa.O |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Authority record control number or standard number | Samar Akef Abbass Ahmed, |
| Preparation | preparation. |
| 245 10 - TITLE STATEMENT | |
| Title | Optimum design for hvdc grounding converter station / |
| Statement of responsibility, etc. | by Samar Akef Abbass Ahmed ; Supervision Prof. Dr.Ahdab M.K. El-Morshedy, Prof. Dr. Mohamed Mahmoud Samy. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | التصميم الأمثل لشبكة أرضى لمحطة تحويل جهد عالى مستمر / |
| 264 #0 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Date of production, publication, distribution, manufacture, or copyright notice | 2024. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 58 pages : |
| Other physical details | illustrations ; |
| Dimensions | 30 cm. + |
| Accompanying material | CD. |
| 336 ## - CONTENT TYPE | |
| Content type term | text |
| Source | rda content |
| 337 ## - MEDIA TYPE | |
| Media type term | Unmediated |
| Source | rdamedia |
| 338 ## - CARRIER TYPE | |
| Carrier type term | volume |
| Source | rdacarrier |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D)-Cairo University, 2024. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Bibliography: pages 55-58. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | This work presents an optimal model for designing a ground system for a DC converter station for a DC voltage transmission line with a capacity of ±500 KV. The PSCAD program was used to model the line and calculate the short-circuit current in case of fault. A simulation of the station's entire grounding system was performed, and the step voltage and touch voltage were calculated using the CYMGRD program, which is based on the Two Layer Method in calculating soil resistance. Actual measurements of heterogeneous and irregular soil resistivity were used in the modeling. The soil resistance, touch, step, and surface efforts were calculated, and the safe limit for touch and step efforts that directly affect humans was calculated. The charge simulation method was used to calculate the electrical resistance of the transformer grounding station of the high-voltage direct current transmission line using the MATLAB program. The factors affecting soil resistance were studied and a separate analysis was performed. The model was built in the laboratory to verify the method of simulating the charge, measuring the electrical resistance from it, comparing the results with it, and calculating the percentage of fault. Precise calculation of the DC electric potential at the ground level and the grounding converter stations of the transmission lines is a very important aspect of the transmission line design. A quantitative description of the electric potential around DC high voltage transmission lines converter stations and grounding resistance calculations has been presented in much research but it still needs further investigatio |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | يقدم هذا العمل نموذجا أمثل لتصميم نظام أرضى لمحطة تحويل تيار مستمر لخط نقل جهد تيار مستمر ذو القدرة ±500 ك.ف . تم إستخدام برنامج PSCAD لعمل نمذجة للخط وحساب تيار القصر فى حالة الخطأ. تم عمل محاكاة لنظام التأريض بالكامل الخاص بالمحطة وحساب جهد الخطوة وجهد اللمس باستخدام برنامج CYMGRD والذى يعتمد على طريقة Two Layer Method فى حساب مقاومة التربة. تم أستخدام قياسات فعلية لمقاومة تربة غير متجانسة وغير منتظمة فى النمذجة. تم حساب مقاومة التربة وجهود اللمس والخطوة والسطح وتم حساب الحد الآمن لجهود اللمس والخطوة التى تؤثر بشكل مباشر على الإنسان. تم إستخدام طريقة محاكاة الشحنة (Charge simulation method) لحساب المقاومة الكهربية لمحطة تأريش المحول لخط نقل تيار الجهد العالى المستمر بإستخدام برنامج MATLAB . تم دراسة العوامل المؤثرة على مقاومة التربة وعمل تحليل منفصل لها. تم بناء النموذج معملياً للتحقق من طريقة محاكاة الشحنة وقياس المقاومة الكهربية منها ومقارنة النتائج معها وحساب نسبة الحطأ. |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Issues CD | Issues also as CD. |
| 546 ## - LANGUAGE NOTE | |
| Text Language | Text in English and abstract in Arabic & English. |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Electrical Engineering |
| Source of heading or term | qrmak |
| 653 #0 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Grounding |
| -- | Touch and Step Potentials |
| -- | CYMGRD |
| -- | Charge simulation method |
| -- | Health effect. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ahdab M. El.Morshedy |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Mahmoud Samy |
| Relator term | thesis advisor. |
| 900 ## - Thesis Information | |
| Grant date | 01-01-2024 |
| Supervisory body | Ahdab M. El.Morshedy. |
| -- | Mohamed Mahmoud Samy |
| Discussion body | Osama E. Gouda |
| -- | Mousa A. Abd-Allah |
| Universities | Cairo University |
| Faculties | Faculty of Engineering |
| Department | Department of Electrical Power and Machines Engineering |
| 905 ## - Cataloger and Reviser Names | |
| Cataloger Name | Shimaa |
| Reviser Names | Huda |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Edition | 21 |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Home library | Current library | Date acquired | Inventory number | Full call number | Barcode | Date last seen | Effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 17.03.2025 | 90801 | Cai01.13.07.Ph.D.2024.Sa.O | 01010110090801000 | 17.03.2025 | 17.03.2025 | Thesis |