A Novel Fault Location Method for Radial Distribution Systems
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Yuan Liao
Abstract
This paper presents a new method for locating faults on radial distribution systems utilizing local voltage and current measurements. The method considers feeder shunt capacitances, is applicable to any type of faults, is suitable for unbalanced networks and does not require fault type information. The method is also independent of source impedance. Analytical analysis is utilized to obtain a generic performance equation for any type of faults, which reduces or eliminates iterative steps to reach the fault location. A process to trim down multiple estimates due to laterals is discussed. Evaluation studies based on simulated data have demonstrated the effectiveness of the proposed solution.
Appendix
The source impedances are given in sequence domain as follows:
Source impedance of source 1:
Source impedance of source 2:
The feeder series impedance matrices in ohms/mile and shunt admittance matrix in Siemens/mile are given as follows [18].
For the main feeder, the impedance matrix is
and the admittance matrix is
For the three phase lateral, the impedance matrix is
and the admittance matrix is
For the two phase lateral, the impedance matrix is
and the admittance matrix is
For the single phase lateral, the impedance matrix is
and the admittance matrix is
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©2015 by De Gruyter
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- A Generalized Formulation of Demand Response under Market Environments
- A Novel Fault Location Method for Radial Distribution Systems
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Articles in the same Issue
- Frontmatter
- Detection and Classification of Transformer Winding Mechanical Faults Using UWB Sensors and Bayesian Classifier
- A Generalized Formulation of Demand Response under Market Environments
- A Novel Fault Location Method for Radial Distribution Systems
- Counterpoise Mutual Voltage and Its Impacts on the HV Transmission UGOH Pole Earth Potential Rise
- Harmonic Mitigation in a Coreless Double-Wound Flywheel Machine: Experimental Verification
- Optimal Dispatch of Unreliable Electric Grid-Connected Diesel Generator-Battery Power Systems
- Comprehensive Smart Grid Planning in a Regulated Utility Environment
- AGC System after Deregulation Considering TCPS in Series with the Tie-Line
