Fault Location for Transmission Lines with Voltage and Current Measurements at One Bus
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Abstract
This paper presents a novel fault location method for transmission lines. The proposed method extends an existing method to locate faults by employing voltage and current measurements at one bus, which can be the bus of the faulted line or be far away from the faulted line. The method is applicable if a loop exists that encloses the faulted line, and the bus, of which the voltage is used, and the branch, of which the current is used. The during-fault positive-sequence bus impedance matrix is derived. Then superimposed voltages and currents due to the fault are expressed as a function of fault location and related transfer and driving point impedances. Consequently, the fault location can be evaluated using the obtained measurements. The distributed parameter line model is adopted to consider the shunt capacitances of the line. The proposed method is independent of fault resistance and fault type. Simulation studies have been carried out based on a 27-bus power system, and promising results have been achieved.
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©2014 by De Gruyter
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Articles in the same Issue
- Frontmatter
- Research Articles
- A Piecewise Solution to the Reconfiguration Problem by a Minimal Spanning Tree Algorithm
- A Load Frequency Control in an Off-Grid Sustainable Power System Based on a Parameter Adaptive PID-Type Fuzzy Controller
- Detection of UV Pulse from Insulators and Application in Estimating the Conditions of Insulators
- Fault Location for Transmission Lines with Voltage and Current Measurements at One Bus
- High Penetration of Electrical Vehicles in Microgrids: Threats and Opportunities
- Modification of Geometric Parameters in Outer Rotor Permanent Magnet Generators to Improve THD, Efficiency, and Cogging Torque
- Solid State Transformer Interface Based on Multilevel Inverter for Fuel Cell Power Generation and Management
- Study of Stand-Alone Microgrid under Condition of Faults on Distribution Line
