Preventing transmission distance relays maloperation under unintended bulk DG tripping using SVM-based approach uri icon

abstract

  • 2016 Elsevier B.V. With high penetration of distributed generation (DG) into distribution systems, an unintended bulk DG tripping as a consequence of severe disturbances such as 3-phase faults in the transmission system is a concern since it can further cause unintended operation of transmission distance relays. To address this matter, this paper presents a novel protection scheme based on support vector machine (SVM) approach. The proposed scheme detects bulk DG tripping following a fault in the power transmission system, and then makes sure there is no follow on distance relay maloperation. It is also able to detect a fault if it happens during the blocking period and hence unblock the relay operation correspondingly. Wide-area (WA) measurements obtained from phasor measurement units (PMUs) are used, in addition to local measurements, to improve the scheme selectivity. The New-England 39 bus system is used to test the proposed scheme. Simulation results are discussed and illustrated.

published proceedings

  • ELECTRIC POWER SYSTEMS RESEARCH

author list (cited authors)

  • Tasdighi, M., & Kezunovic, M.

citation count

  • 17

complete list of authors

  • Tasdighi, Mohammad||Kezunovic, Mladen

publication date

  • January 2017