Open AccessConstruction of detailed energy function of double‐fed induction generator for small signal stability analysis of power systems with a high penetration of double‐fed induction generator
Author(s) -
Liu Cheng,
Diao Shuo,
Cai Guowei,
Zhang Yuchi,
Yu Fangtong
Publication year - 2022
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/gtd2.12639
Subject(s) - induction generator , doubly fed electric machine , control theory (sociology) , correctness , generator (circuit theory) , renewable energy , electric power system , energy (signal processing) , computer science , electric generator , stability (learning theory) , power (physics) , engineering , ac power , wind power , electrical engineering , mathematics , physics , voltage , algorithm , statistics , control (management) , quantum mechanics , artificial intelligence , machine learning
The integration of high proportion renewable energy not only brings many benefits, but also increases the difficulty of power system stability analysis. One of the reasons for this problem is the unclear internal characteristics of new energy equipment. Therefore, there is an urgent need for a more detailed analysis of the characteristics of new energy equipment. Taking a double‐fed induction generator (DFIG), which has complex operation characteristics and is widely used, as an example, a detailed energy function (DEF) of DFIG for small signal stability analysis is proposed in this paper. This method performs DFIG's internal energy analysis, making the traditional energy structure more comprehensive. On this basis, the internal parameters of DFIG with high sensitivity to stability are obtained, and the damping evaluation index is constructed to evaluate the damping of DFIG. Finally, the proposed model's correctness and method are verified in the 4‐generator 2‐area system.