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Fault Location for Parallel Transmission Lines with Limited Voltage and Current Measurements

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Published/Copyright: June 25, 2013
International Journal of Emerging Electric Power Systems
From the journal International Journal of Emerging Electric Power Systems Volume 14 Issue 3

Abstract

This article presents a novel fault location algorithm for parallel transmission lines for scenarios where only limited synchronized voltage and current measurements are available. Existing methods usually request measurements at the faulted line to be available. However, this may not always be the case due to the limited number of recording devices placed in a power system. The proposed method makes the most of available measurements and does not require the measurements to be captured from the faulted line. The pre-fault and during-fault bus impedance matrices for the positive-sequence network are derived. Synchronized bus voltages and branch currents are then expressed as a function of fault location and line parameters. As a result, fault location can be estimated using the obtained measurements. The distributed parameter line model is adopted to fully consider the shunt capacitances of the line. To eliminate the influence of bad measurements, optimal estimation theory is adopted for enhanced accuracy of the fault location estimate. Simulation studies have been carried out based on a 27-bus power system, and encouraging results have been achieved.

Keywords: fault location; synchronized measurements,; optimal estimate

References

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Received: 2012-11-21
Accepted: 2013-05-20
Published Online: 2013-06-25

© 2013 by Walter de Gruyter Berlin / Boston

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https://doi.org/10.1515/ijeeps-2012-0021
Keywords for this article
fault location; synchronized measurements,; optimal estimate

Articles in the same Issue

  1. Masthead
  2. Masthead
  4. Optimal Operation Planning of Wind Farm Installed BESS Using Wind Power Forecast Data of Wind Turbine Generators Considering Forecast Error
  5. Research Article
  6. The Study of Switching Overvoltages under Power System Restoration Scenario Using Extended Delta-Bar-Delta Algorithm
  7. Investigation of Transmission Line Models for Switching Overvoltages Studies
  9. Configuration of Jacobian Matrix in Steady-State Voltage Stability Analysis Based on Rotor Flux Dynamics of Rotating Machines
  10. Commercial Impact and Optimum Capacity Determination of Pumped Storage Hydro Plant for a Practical Power System
  11. A Novel Approach of Battery Energy Storage for Improving Value of Wind Power in Deregulated Markets
  12. Fault Location for Parallel Transmission Lines with Limited Voltage and Current Measurements
  13. Research Article
  14. Trade-Off Analysis to Solve a Probabilistic Multi-Objective Problem for Passive Filtering System Planning
  16. Power-Quality Improvement in PFC Bridgeless SEPIC-Fed BLDC Motor Drive
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