Small-signal stability constrained optimal power flow model considering optimization of DFIG pitch angle

被引：0
|
作者：
Li S. [1 ]
Jiang Y. [1 ]
Yu X. [1 ]
Zhang N. [1 ]
Song Y. [1 ]
机构：
[1] School of Electrical Engineering and Automation, Hefei University of Technology, Hefei
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2019年 / 39卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Doubly-fed induction generator; Eigenvalue sensitivity; Optimal power flow; Parameter optimization; Pitch angle control; Small-signal stability;
D O I：
10.16081/j.epae.201908015
中图分类号：
学科分类号：
摘要：
The existing SC-OPF(Small-signal stability Constrained Optimal Power Flow) generally selects the active output of SG(Synchronous Generator) as the control parameter, and the improvement effect of power system stability level is limited when SG output has little influence on some dangerous eigenvalues. Based on the detailed model of DFIG, the analytical expression of the sensitivity of the dangerous eigenvalues to the control parameters is derived, and the control parameters are adjusted by the eigenvalue sensitivities to improve the existing SC-OPF algorithm. Meanwhile, the active output of SG and pitch angle parameter of DFIG are optimized to adjust the dominant eigenvalues. Simulative results show that the proposed model can improve both the damping ratio and stability margin of power system and reduce the economic loss. © 2019, Electric Power Automation Equipment Press. All right reserved.
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页码：20 / 26
页数：6
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