Title :
Research of the influence to the measurement unit of microcomputer distance protection from electric locomotive loads
Author :
Zhi-Hui, Lan ; Yong-Hai, Xu ; Xiang-Ning, Xiao
Author_Institution :
Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing
Abstract :
What this paper study is the influence of electric locomotive loads to three kinds of measurement unit of microcomputer relay protection. A model is constructed by EMTDC/PSCAD, containing typical power grid and three kinds of measurement unit of microcomputer relay protection. The influence degree by electric locomotive loads to the Fourier algorithm, solving differential equation algorithm and first-order difference algorithm is discussed, using theories analysis combine with EMTDC/PSCAD simulation. The theoretical basis for the choice of measurement element is provided in the area where electrified railway is the primary load.
Keywords :
differential equations; electric locomotives; power grids; power system CAD; power system measurement; relay protection; EMTDC/PSCAD; Fourier algorithm; differential equation; electric locomotive loads; first-order difference algorithm; microcomputer distance protection; microcomputer relay protection; power grids; Algorithm design and analysis; Analytical models; Differential equations; EMTDC; Measurement units; Microcomputers; PSCAD; Power grids; Protection; Protective relaying; Electric Locomotive Loads; Harmonic; Measurement Unit; Microcomputer Distance Protection; PSCAD Simulation; Unbalanced Loads;
Conference_Titel :
Electric Power Conference, 2008. EPEC 2008. IEEE Canada
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-2894-6
Electronic_ISBN :
978-1-4244-2895-3
DOI :
10.1109/EPC.2008.4763326
