Open AccessAnalysis and evaluation of power system voltage stability considering pumped storage power station
Author(s) -
Yue Yu,
Long Jin,
Yanjun Li,
Longhao Liu,
Guangye Liu
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1311/1/012003
Subject(s) - power (physics) , voltage , electric power system , electrical impedance , power station , electrical engineering , voltage optimisation , power factor , control theory (sociology) , engineering , computer science , physics , control (management) , quantum mechanics , artificial intelligence
Aiming at the influence of the connection of pumped storage power station to power grid on voltage stability, the impedance modulus margin defined by non-linear equivalent analysis method is used as the evaluation index of system voltage stability, and a method for evaluating power system voltage stability considering pumped storage power station is proposed. Considering the peak-cutting function of pumped storage power station, the calculation method of general impedance modulus margin of load nodes is derived. The general impedance modulus margin of load nodes is calculated by changing the output and access position of pumped storage power station, and its influence on the voltage stability of power system is analyzed. Coordinating the access position and output of pumped storage power station to improve the voltage stability of the system. Finally, through the simulation calculation on the standard node system, the feasibility of the project is verified.