考虑动态负荷改进PSS/E BKDY模块的短路电流衰减计算

随着用电需求的增长和电网网架的日益增强,有必要考虑动态负荷对短路电流的贡献,以便更符合实际地评估断路器的开断能力、动稳定等。利用PSS/E的IPLAN语言编程,调用PSS/E API子程序和PSS/E API批命令进行一系列计算,灵活设置PSS/E数据卡片,改进了PSS/E BKDY模块使其可以考虑动态负荷进行短路电流计算。分别用上述改进模块和PSS/E暂态稳定模块,考虑动态负荷对我国某大都市电网进行了短路电流周期分量衰减计算,两者的计算结果非常接近。表明改进模块可以考虑动态负荷用来计算短路电流周期分量。...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 44; no. 11; pp. 135 - 141
Main Author 曹炜 闫宇星 戈睛天 李万信
Format Journal Article
LanguageChinese
Published 上海电力学院电气工程学院,上海,200090%国网上海市电力公司检修公司,上海,200063%国网聊城供电公司,山东 聊城,252000 2016
Subjects
BKDY
IPLAN
PSS/E
动态负荷
周期分量
电动机
短路电流
electric motor
PSS/E BKDY
电动机
periodic component
IPLAN
短路电流
dynamic load
周期分量
动态负荷
short-circuit current
Online AccessGet full text
ISSN1674-3415
DOI10.7667/PSPC151168

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Summary:随着用电需求的增长和电网网架的日益增强,有必要考虑动态负荷对短路电流的贡献,以便更符合实际地评估断路器的开断能力、动稳定等。利用PSS/E的IPLAN语言编程,调用PSS/E API子程序和PSS/E API批命令进行一系列计算,灵活设置PSS/E数据卡片,改进了PSS/E BKDY模块使其可以考虑动态负荷进行短路电流计算。分别用上述改进模块和PSS/E暂态稳定模块,考虑动态负荷对我国某大都市电网进行了短路电流周期分量衰减计算,两者的计算结果非常接近。表明改进模块可以考虑动态负荷用来计算短路电流周期分量。
Bibliography:short-circuit current; periodic component; dynamic load; electric motor; PSS/E BKDY; IPLAN
With the growth of electricity demand and the enhancement of power grid network, it may be necessary to consider the contribution of the dynamic load to the short-circuit current for the more realistic assessment of the circuit breaker breaking capacity and dynamic stability. The PSS/E BKDY module is improved by applying the IPLAN language embedded in PSS/E to call PSS/E API routines and PSS/E API batch commands so as to set PSS/E data cards automatically according to user defined rules and calculations. The short-circuit current of a metropolitan power system is calculated with both the improved PSS/E BKDY module and PSS/E transient stability module and the results from those two module are very close. Therefore the improved PSS/E BKDY module is verified to be able to calculate the short-circuit current decay with dynamic load considered.
41-1401/TM
CAO Wei, YAN Yuxing, GE Jingtian, LI Wanxin （1. School of Electric Power
ISSN:1674-3415
DOI:10.7667/PSPC151168