Open AccessResearch and design of wind power grid switch for low voltage crossing ability
Author(s) -
Liu Zhang,
Shaohua Ma,
Chenghong Gu,
Quanping Zou
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/267/4/042142
Subject(s) - interconnection , grid , wind power , computer science , commutation , power (physics) , voltage , electrical engineering , electronic engineering , engineering , telecommunications , physics , quantum mechanics , geometry , mathematics
This paper proposes a new type of wind power grid switch design, according to the requirements of the wind power generation system for grid switch technology, combined with the electromagnetism theory and empirical formula. The new interconnection switching used the characteristics of the high remanence of two-phase magnetic materials to solve the problem such as great power consumption, holding not across low voltage, in view of the traditional electromagnetic grid switch, and then set up new interconnection switching of the three-dimensional entity model, finally used the finite element simulation software, the change of the curve, such as the electromagnetic suction parameters and contact motion speed was obtained, the relationship between the structure parameters and interconnection switch operating characteristics of the contact was also obtained. Finally simulation experiment results show that the new grid switch in the case of no excitation current keeps off state, which can be well applied to wind power generation system, and can effectively improve the stability of large-scale distributed power grid operation, and has a certain theoretical significance and practical value.