Open AccessResearch on External Fault of Salient Pole Synchronous Motor at Rated Load
Author(s) -
Yubo Shen,
Hongyi Zhou,
Zhibin Li,
Siwei Han,
Min Xu,
Shulei Shang,
Meng Zhou,
Xuyang Yao
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/781/4/042014
Subject(s) - fault (geology) , stator , electrical engineering , power (physics) , automotive engineering , engineering , overvoltage , computer science , voltage , physics , quantum mechanics , seismology , geology
The pumped storage power station is an inevitable product of the power system structure and power supply demand development to a certain stage, and it is a necessary management tool to ensure the safe and stable operation of the power system. Pumped storage power plants have the ability to improve and balance the load of the power system, which can improve the quality of power supply to the power grid and improve overall economic benefits. With the development of high-tech industries such as informatization and digitization and the improvement of people’s living standards, society has higher and higher requirements for pumped storage power stations. Pumped storage motor is a three-phase salient-pole synchronous motor used in pumped storage power stations. This paper simulates and analyzes the stator voltage, current and electromagnetic torque when single-phase grounding short circuit, inter-phase short circuit, and two-phase grounding short circuit occur in pumped-storage motors, and the law of change is obtained.