基于零损耗深度限流技术提升变压器抗短路能力研究

Study on Anti-short-circuit Ability of Transformer Based on the Zero Loss Deep Current Limiting Technology

针对变压器抗短路能力的强度对电力系统的影响,文中提出了采用零损耗深度限流技术来提高变压器抗短路能力的方法。其过程为:首先分析变压器故障类型及从物理角度探讨了变压器的动稳定性,研究变压器抗短路能力下降的具体原因;其次分析零损耗深度限流技术基本工作原理,得出零损耗深度限流技术可以提高变压器抗短路能力的结论;最后提出基于零损耗深度限流技术提高变压器抗短路能力基本应用原则,并通过算例分析该方法的可行性。提出的提高变压器抗短路能力的方法更经济、高效。

In consideration of the anti-short circuit ability of transformer impacted on the power system, the zero loss deep current limiting technology is put forward to improve the anti-short circuit ability of transformer in this paper. Firstly, the fault type and dynamic stability of transformer are analyzed from physical perspective, and the specific cause for the decline of anti-short circuit ability of transformer is studied. Further the basic working principle of the zero loss deep current limiting technology is analyzed, the obtained conclusion is that the technology can improve the anti-short circuit ability of transformer. Finally the basic application principle is put forward that the anti-short cir cuit ability of transformer promoted by the zero loss deep current limiting technology, and the feasibility of this method is analyzed by an example. The method proposed in this paper to improve the anti-short circuit ability of transformer is more economic and efficient.