Open AccessSmall-Signal Stability Analysis for Power System Frequency Regulation with Renewable Energy Participation
Author(s) -
Tingyi He,
Shengnan Li,
Shuijun Wu,
Ke Li
Publication year - 2021
Publication title -
mathematical problems in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 62
eISSN - 1026-7077
pISSN - 1024-123X
DOI - 10.1155/2021/5556062
Subject(s) - renewable energy , wind power , photovoltaic system , electric power system , control theory (sociology) , robustness (evolution) , maximum power point tracking , engineering , power (physics) , electrical engineering , computer science , voltage , physics , chemistry , biochemistry , inverter , control (management) , quantum mechanics , artificial intelligence , gene
With the improvement of the permeability of wind and photovoltaic (PV) energy, it has become one of the key problems to maintain the small-signal stability of the power system. Therefore, this paper analyzes the small-signal stability in a power system integrated with wind and solar energy. First, a mathematical model for small-signal stability analysis of power systems including the wind farm and PV station is established. And the characteristic roots of the New England power system integrated with wind energy and PV energy are obtained to study their small-signal stability. In addition, the validity of the theory is verified by the voltage drop of different nodes, which proves that power system integrated with wind-solar renewable energy participating in the frequency regulation can restore the system to the rated frequency in the shortest time and, at the same time, can enhance the robustness of each unit.
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