Multilayer Fuzzy System Applied to Locate Faults in Distribution Systems Using Only Voltage Measurements

摘要

Smart grids are a more and more present concept in electrical systems. In the context of smart grids, alike in the present topology of electrical systems, it is necessary to guarantee quality and reliability of energy provision. Thus, this work has the objective to locate faults ins energy distribution systems using only post-fault voltage data. This data will be collected on the medium voltage side of distribution transformers, a likely place for installation of concentrating devices of smart grids, and will be applied to a multilayer fuzzy inference system. The scenario studied is a feeder of an actual distribution system, with 1600 buses and 505 transformers. The obtained results are still very imprecise to faults too close or too far from the measurement point, but they are satisfactory for a specific range of fault distances. Improvements are going to be made to obtain more accurate results.