摘要
提出了一种将负荷导纳模型法和《电力系统分析综合程序》用户程序接口(PSASP/UPI)相结合,快速求取系统静态电压稳定极限及节点P-V曲线的方法。用C++语言编写负荷导纳模型法的用户程序(UP),通过接口传递数据,使PSASP/UPI环境下的潮流(LF)计算模块和该用户程序交替求解,准确计算出系统各负荷节点临界电压值和有功裕度,得到较完整的P-V曲线。该方法很好地解决了常规潮流计算在临界点收敛困难的问题,并大大提高了计算速度和精度。通过山西长治地区电网的实例验证,该方法可以有效应用于实际系统节点电压稳定状况的分析,且易于程序实现。
A Fast method of getting the static voltage stability limit and P-V curve is presented combining load admittance model method with Power System Analysis Software Package/User Program Interface （PSASP/UPI）. The User Program （UP） of load admittance model method,which is composed by C＋ ＋ language, then can be carried out with Load Flow （LF） calculation module together by turns on PSASP/UPI through the interface transmitted data, so the critical voltage value and active power margin of every load bus can be solved, and the relative complete P-V curve can also be got. The convergent difficulty of the load flow computation close to the limit is avoided effectively, as well as the calculating speed and accuracy is improved obviously using proposed method. The example Changzhi district power system verified that the method can be used to analyze practical power system voltage stability and easy to be programmed.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2008年第5期45-50,共6页
Proceedings of the CSU-EPSA
基金
山西省自然科学基金资助项目(2007011051)
