QENS-an enhanced version of the electric network simulator program

Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting Pub Date : 1988-10-02 DOI:10.1109/IAS.1988.25190

H. Cornel, V. I. John

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引用次数: 8

Abstract

A commercially available AC/DC load flow program geared specifically to transit systems has been enhanced to simulate the Vancouver ALRT (Advanced Light Rapid Transit) system. The converter model has been revised to accurately simulate a twelve-pulse parallel-connected converter station with inversion capability. A model and algorithm to simulate the operation of wayside braking resistors called automatic assured receptivity units (AARUs), is developed. The revised program, QENS, retains the separate AC and DC networks and uses a sequential method to obtain convergence of both networks while simultaneously satisfying the converter voltage and power constraints. Several simulation case studies are examined that are based on typical Vancouver operating scenarios. Performance comparisons between six and twelve-pulse converters are made, and the effects of regenerative braking into a nonreceptive power system are investigated. The Gauss-Seidel method used in the algorithm provides QENS with good convergence characteristics and consistently yields accurate solutions in a reasonable amount of CPU time.<>

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qens -一个增强版的电子网络模拟器程序

一个商业上可用的交流/直流负荷流程序专门针对交通系统进行了改进，以模拟温哥华的ALRT(先进轻轨)系统。为了准确地模拟具有反演能力的十二脉冲并联换流站，对换流站模型进行了修正。提出了一种模拟路旁制动电阻器自动保证接受度单元(AARUs)运行的模型和算法。修订后的程序QENS保留了单独的交流和直流网络，并使用顺序方法来获得两个网络的收敛，同时满足转换器电压和功率约束。研究了几个基于温哥华典型操作场景的模拟案例研究。对六脉冲变换器和十二脉冲变换器的性能进行了比较，并研究了再生制动对非接受电源系统的影响。算法中使用的Gauss-Seidel方法使QENS具有良好的收敛特性，并在合理的CPU时间内始终得到准确的解。

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Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting

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