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การหาตำแหน่งติดตั้งอุปกรณ์ป้องกันเพื่อเพิ่มความเชื่อถือได้ โดยคำนึงถึงการป้องกันการแยกตัวอิสระของระบบจำหน่ายไฟฟ้า /

Author: นันทิพัฒน์ จิราวรรณสถิตย์ = Protective device placement for reliability improvement by considering islanding protection in distributed systems / Nantipat Jiravanstit. สุรชัย ชัยทัศนีย์, ; ; Nantipat Jiravanstit.
Publisher: 2554.
Edition/Format:   Thesis/dissertation : Thesis/dissertation : Government publication : Manuscript   Archival Material : Thai
Summary:
This thesis proposes the anti-islanding method for distribution systems with Photovoltaic Generation System (PVGS) by using voltage and frequency relays. This thesis derives Non Detection Zone (NDZ) of Over/Under voltage and Over/Under frequency ranges by using load quality factor in order to increase the accuracy for islanding prevention. In addition, another method to prevent islanding situation is derived by  Read more...
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Material Type: Thesis/dissertation, Government publication, Manuscript, Internet resource
Document Type: Book, Archival Material, Internet Resource
All Authors / Contributors: นันทิพัฒน์ จิราวรรณสถิตย์ = Protective device placement for reliability improvement by considering islanding protection in distributed systems / Nantipat Jiravanstit. สุรชัย ชัยทัศนีย์, ; ; Nantipat Jiravanstit.
OCLC Number: 921244258
Other Titles: Protective device placement for reliability improvement by considering anti-islanding protection in distributed systems

Abstract:

This thesis proposes the anti-islanding method for distribution systems with Photovoltaic Generation System (PVGS) by using voltage and frequency relays. This thesis derives Non Detection Zone (NDZ) of Over/Under voltage and Over/Under frequency ranges by using load quality factor in order to increase the accuracy for islanding prevention. In addition, another method to prevent islanding situation is derived by using Newton-Raphson's power flow. The islanding prevention is considered necessary for the currently increasing Photovoltaic Generation Systems. In addition, the thesis proposes the protective device placement for system reliability improvement by using Genetic Algorithm (GA) optimization. The optimization also takes the account of islanding prevention as a constraint. The proposed method is brought to apply with RBTS Bus 2 distribution system, and a modified system of the Provincial Electricity Authority (modified Banlen system).

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