期刊论文

Probabilistic continuous hybrid flow method for electricity-gas coupling system integrated with DFIG wind farm and its load margin analysis

中文

电力自动化设备

1006-6047

2019

39

8

38-46

10.16081/j.epae.201908044

收稿日期：2019-04-01；修回日期：2019-07-06 基金项目：国家自然科学基金资助项目（51677007）；湖南省 自然科学基金资助项目（2019JJ40298） Project supported by the National Natural Science Foundation of China（51677007） and Hunan Provincial Natural Science Foundation（2019JJ40298）

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针对含双馈感应式风机(DFIG)风电场电-气耦合多能流系统的最大负荷裕度及其耦合影响问题,考虑天然气管网的动态特性,建立考虑DFIG稳态模型和能源路由器(EH)的含参连续混合潮流模型;采用随机响应面法(SRSM)拟合DFIG出力,结合预估-校正及电-气系统耦合交替迭代获取电力系统负荷节点的有功功率-电压曲线、天然气系统流量-气压曲线及其负荷裕度期望值;定义电压-负荷、气压-流量灵敏度,可分别跟随电力系统负荷节点有功功率-电压曲线、天然系统气流量-气压曲线的获取,定义电-气耦合环节中天然气系统节点压强-EH节点注入电功率和电力系统节点电压-EH节点天然气注入流量灵敏度,从而定量评估电-气耦合下电...

Aiming at the problems of the maximum load margin and its coupling effect of the electricity-gas coupling multi-energy flow system integrated with DFIG(Doubly-Fed Induction Generator)-based wind farm, based on the dynamic characteristics of natural gas pipeline network, the continuous hybrid flow models with parameters are established considering DFIG steady-state model and EH(Energy Hub). The SRSM(Stochastic Response Surface Method) is used to fit the output of DFIG, combining prediction-correction and the alternate iteration of electricity-ga...