文档介绍：附件:论文格式
1000MW机组厂用电系统短路电流可视化计算
ABSTRACT: As China's economy is developing, the electricity demand is increasing, the electric design for auxiliary power system of large capacity of 1000 MW power units has gradually e the main part for power systems. As a result, the auxiliary power system wiring will plex due to the increasing of capacity and types of auxiliary machines, at the same time, the problems of large short circuit current and difficulty of motor starting are appearing, the reliability, stability and security of power system are depending on the auxiliary power system. So it is very important to simulate the operating state and calculate the fault current data of auxiliary power system for selecting the electric equipments. Two methods using in electic desining the for calculation the fault current were analyzed in this paper, according to the general the technical rule, the fault current for high-volts buses of auxiliary power system were calculated. The ETAP visualization software is used to model the auxiliary power system for 1000MW units, the operating state is simulated and the fault current for all buses are calculated according to IEC909 methods, compared with the fault current for high-volts buses, the results are coincident and believable, which will supply references for selecting the electric equipments, system planning and designing in the future.
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