新型换流变压器谐波损耗的计算与分析

摘要

Calculation of harmonic loss is very significant to generalizing new type of converting transformer. Based on the analyce of transformer's harmonic loss and calculation in detail, a harmonic loss calculation method of transformer was proposed in the paper. This method usee harmonic equivalent circuit of transformer, and obtained simulation models of new type of converting transformer by Matlab software. Withsuperposition and curve regression principle, the calculation formula of new type of converting transformer's harmonic loss was deduced. Contrasted the data application of new type of converting with it originally in Zhuzhou chemical plant, practice shows that new type of converting transformer has good harmonics shading.%谐波损耗的计算对新型换流变压器的广泛应用有着重要意义.基于新型换流变压器的损耗及计算分析,提出一种计算谐波损耗的计算方法.该方法借助谐波影响下变压器的等效电路,通过Matlab建立仿真模型,利用叠加、曲线拟合原理,推导出了新型换流变压器谐波损耗的计算公式.最后,以新型换流变压器在株洲化工厂应用前后数据对比,证明新型换流变压器具有较好的谐波屏蔽能力.