Large Scale Distributed Modeling and Parameter Estimation of Power Transformers

最近的变压器故障表明， 制造商和设计人员可能不足以研究电压 变压器内部发生的振荡。 为了研究这个问题， 建议开发大规模分布式Transformer模型 从系统识别的角度来看。 目标是 独立地估计所述Transformer模型的参数， 测量。 在这项研究中，两个变压器将模拟从 在50 Hz至1 MHz范围内测量频率响应数据。 的 所提出的研究的意义在于，Transformer 制造商可以使用这里提出的技术， 验证其专有设计模型，并使用经过验证的模型 研究变压器的内部电压振荡。 拟议 电力系统工程师也可以使用这些技术来开发 Transformer模型和研究瞬态电压分布， 谐波和浪涌性能分析，并使用EMTP模型 应用，并研究瞬态过程中产生的RF EM噪声 HVDC站的运行。

Recent failures of transformers indicate that the models used by manufacturers and designers may not be adequate to study the voltage oscillations which occur within transformers. To study this problem, it is proposed to develop large-scale distributed transformer models from the standpoint of system identification. The goal is to independently estimate the parameters of the transformer models based on measurements. In this study, two transformers will be modeled from measured frequency response data in the range of 50 Hz to 1 MHz. The significance of the proposed research is that the transformer manufacturers can use the technique proposed here to independently validate their proprietary design model and use a validated model to study the internal voltage oscillations of transformers. The proposed technique can also be used by power system engineers to develop transformer models and to study transient voltage distribution, harmonics and surge performance analysis, and use the models in EMTP applications and to study RF EM noise generated during the transient operation of HVDC stations.