Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/39279
Title: การปรับปรุงเทคนิคการวัดสมมูลสำหรับการประมาณสถานะ ระบบกำลังไฟฟ้า
Other Titles: Improvement of Equivalent Measurement Technique for Power System State Estimation
Authors: รศ.ดร.เสริมศักดิ์ เอื้อตรงจิตต์
กิติชัย ศรีมูล
Keywords: การส่งกำลังไฟฟ้า
Issue Date: 26-Nov-2557
Publisher: เชียงใหม่ : บัณฑิตวิทยาลัย มหาวิทยาลัยเชียงใหม่
Abstract: This independent study has investigated an approach to improve the power system state estimation method that used the equivalent measurement technique by considering the dependency of the equivalent measurements. The proposed method has been tested on the IEEE 14, 30, 57, 118 and300 bus systems and compared with the old equivalent measurement technique method which assumes that all equivalent measurements are independent, and the conventional method which used the data obtained from the power system. Four types of objective functions, namely the weight least squares (WLS), the weight lest absolute value (WLAV), the quadratic-linear (QL) and the square root (SR), have been studied. The mean and standard deviation of the error of the estimated state variables, and the computation time are compared. From the experimental results, it is found that the histogram of mean error obtained by the improved method is more similar to the histogram of the conventional method than the old equivalent measurement technique but the proposed method uses less computation time.
URI: http://repository.cmu.ac.th/handle/6653943832/39279
Appears in Collections:ENG: Independent Study (IS)

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APPENDIX.pdfAPPENDIX484.68 kBAdobe PDFView/Open    Request a copy
CHAPTER 1.pdfCHAPTER 1330.28 kBAdobe PDFView/Open    Request a copy
CHAPTER 2.pdfCHAPTER 2582.27 kBAdobe PDFView/Open    Request a copy
CHAPTER 3.pdfCHAPTER 32.63 MBAdobe PDFView/Open    Request a copy
CHAPTER 4.pdfCHAPTER 4228.87 kBAdobe PDFView/Open    Request a copy
CONTENT.pdfCONTENT258.62 kBAdobe PDFView/Open    Request a copy
COVER.pdfCOVER577.95 kBAdobe PDFView/Open    Request a copy
REFERENCE.pdfREFERENCE271.38 kBAdobe PDFView/Open    Request a copy


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