Three-Phase-Measurement-Based Load Modeling Technique Using Unbalanced Fault Data
- Authors
- Han, Sangwook
- Issue Date
- May-2020
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Load modeling; measurement-based approach; parameter estimation; three-phase data; unbalanced disturbances; asymmetrical fault
- Citation
- IEEE ACCESS, v.8, pp.83655 - 83662
- Journal Title
- IEEE ACCESS
- Volume
- 8
- Start Page
- 83655
- End Page
- 83662
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/80192
- DOI
- 10.1109/ACCESS.2020.2992369
- ISSN
- 2169-3536
- Abstract
- This study presents a load modeling technique using unsymmetrical fault data. Typically, three-phase balanced fault data are prerequisite for load modeling; however, the existing technique utilizes only positive sequence data. Obtaining symmetrical data from a real power system is very difficult as three-phase faults are very rare. In this study, I aimed to improve existing methods designed for estimating load parameters from three-phase symmetrical fault data via load modeling of unsymmetrical faults. The proposed method corrects the existing algorithm using positive sequence data along with three-phase data, namely phases-A, -B, and -C. The equation for each phase of the load model is obtained and subsequently used for load parameter estimation. The load model parameters are estimated using the data obtained from phases-A, -B, and -C, unlike in existing load models that use only positive sequence data. Unsymmetrical faults occur more frequently in a system than symmetrical faults, and numerous opportunities for load model parameter estimation are available. Applying this algorithm to the three-phase data collected using phasor measurement unit-like data acquisition devices is expected to considerably increase both the parameter estimation accuracy and frequency during load modeling parameter estimation in the future.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - IT융합대학 > 전기공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/80192)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.