文章基本信息

标题：Research and design of wind power grid switch for low voltage crossing ability
本地全文：下载
作者：Liu Zhang ; Shaohua Ma ; Cailian Gu 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：267
期号：4
页码：1-7
DOI：10.1088/1755-1315/267/4/042142
出版社：IOP Publishing
摘要：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.