四川变电站仿真系统的技术创新浅析

Superficial Analysis on Technological Renovation for Simulation System of Sichuan Substation

介绍了四川变电站仿真系统的部分具有创新性的技术成果:1.采用图形建模的方式进行电网潮流计算分析,根据仿真对象的一次接线图、各线路、设备参数等原始资料自动生成电力系统的潮流计算和故障计算程序。2.采用PQ分解法和存贮导纳矩阵每行非零元素的方式,加快计算速度,满足网络节点数较多的仿真系统实时性要求。3.在故障潮流计算上,采用虚拟四端口方法,在保证实时性的情况下得到精确解。4.在教练员台上采用通用故障图形插入方式,方便教练员培训,提高教练台的功能。

A part of the technological renovation achievements of the simulation system in Sichuan substations are introduced： 1 .The calculation of load flow of power system is analyzed with graphical modeling, and the programs for load flow calculation and malfunction calculation of power system are created automatically based on the raw data of simulation object such as primary wiring diagram, parameters of every circuit and equipment. 2. PQ resolutions and the method of storing admittance matrix with non - zero element are adopted to accelerate the computation speed and satisfy the time requirements of the simulation system with many connection networks. 3. On the fault power flow calculation, dummy four- port method is used to obtain the accurate calculation to guarantee real - time result. 4. On the coach platform, the method of fault graphic insertion is adopted to improve the function of coach platform and as well as the efficiency of the coach.