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Nattapon Panmala.. Condition assessment of high voltage gas-insulated substation using fuzzy logic. Doctoral Degree(Electrical and Software Systems Engineering (International Program)). King Mongkut's University of Technology North Bangkok. Central Library. : King Mongkut's University of Technology North Bangkok, 2023.
Condition assessment of high voltage gas-insulated substation using fuzzy logic
Name: Nattapon Panmala.
keyword:
Gas insulated switchgear.
LCSH:
Fuzzy logic.
LCSH:
Electric cables
-- Gas insulation.
Abstract:
This research proposes a comprehensive procedure to assess the condition of gas insulated switchgear (GIS) equipment by using the conventional weight and score method and introducing a conditional factor to improve the accuracy of the health index evaluation. Generally, the inspection and testing of GIS components are conducted according to manufacturer recommendations and standard guidelines. However, this raw data has not been simplified and systematically processed. Then, score and weight technique are applied to transform the physical condition according to visible and measurable aging to numerical values in terms of component and bay health index values. The accuracy of the obtained health index has been improved by a conditional factor, which considers invisible aging factors, such as age, number of switching operations, degree of satisfactory operation, obsolescence, and adequacy of the interrupting rating. Since the traditional WSM is a subjective method, the fuzzy logic approach has been applied to enhance the accuracy of the HI determination by evaluating the detectable degradation and the incorporated CF. Hence, the fuzzy rule-based system (FRBS) is developed by using lookup table associating from conventional condition assessment. Then, a condition evaluation procedure has been compared with the fuzzy logic method and the health index dominant score technique to validate the accuracy with satisfactory results. Subsequently, the proposed conventional condition assessment has been developed as web application software to evaluate 175 bays of GIS in both 115 and 230 kV networks of an independent power producer supplying electricity of 3094 MW to a large industrial estate in Thailand. Eight GIS bays showed moderate or poor condition and the proper actions were assigned to prevent their failure. The software is in the use of practice as a decision support tool to effectively manage the maintenance tasks and to improve supply reliability.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Name: Thanapong Suwanasri
Role:
dissert advisor
Name: Cattareeya Suwanasri
Role:
dissert advisor
Created:
2023
Modified:
2567-04-02
Issued:
2024-04-02
วิทยานิพนธ์/Thesis
application/pdf
eng
DegreeName: Doctor of Engineering
Level: Doctoral Degree
©copyrights King Mongkut's University of Technology North Bangkok
RightsAccess:
ใช้เวลา
0.032276 วินาที
Nattapon Panmala.
| Title | Contributor | Type |
|---|---|---|
| Condition assessment of high voltage gas-insulated substation using fuzzy logic
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Nattapon Panmala. | Thanapong Suwanasri Cattareeya Suwanasri | วิทยานิพนธ์/Thesis |
Thanapong Suwanasri
Cattareeya Suwanasri
| Title | Creator | Type and Date Create |
|---|---|---|
| Condition assessment of high voltage gas-insulated substation using fuzzy logic
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Thanapong Suwanasri;Cattareeya Suwanasri | Nattapon Panmala. | วิทยานิพนธ์/Thesis |