Journal
IEEE TRANSACTIONS ON POWER DELIVERY
Volume 30, Issue 1, Pages 264-272Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRD.2014.2334471
Keywords
Phasor measurement unit (PMU); sequence network; substitution theorem; wide-area fault location
Categories
Funding
- University of Tehran [8101064-1-07]
Ask authors/readers for more resources
Local practices in fault location require measurements from one or more terminals of the faulted line to be available. On the other hand, the nonlinearity of circuit equations associated with wide-area fault location makes their solving process iterative and computationally demanding. This paper proposes a non-iterativemethod for wide-area fault location by taking advantage of the substitution theorem. Accordingly, a system of equations is constructed which can be easily solved using the linear least-squares method. The distributed-parameter line model is considered to provide a highly accurate estimation. Besides, due to inherent errors of current transformers, the current data is not taken into account to preserve the accuracy. In order to avoid uncertainties in relation with construction of zero-sequence network, just positive-and negative-sequence networks are exploited. Nonetheless, the method still is capable of pinpointing all types of short-circuit faults by using a restricted number of synchronized pre-and post-fault voltage phasors. Numerous simulation studies conducted on the WSCC 9-bus and New England 39-bus test systems verify the effectiveness and applicability of the proposed fault location method, even with limited coverage of synchronized measurements.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available