Developing Piecewise Damping Terms for the Fifth-Order Generator Model Under Large Disturbances

Developing Piecewise Damping Terms for the Fifth-Order Generator Model Under Large Disturbances
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开发大扰动下五阶发电机模型的分段阻尼项

DOI:
10.1080/15325008.2018.1510446
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发表时间:
2018-05
期刊:
Electric Power Components and Systems Electric Power Components and Systems
影响因子:
--
通讯作者:
Hsiao-Dong Chiang
Hsiao-Dong Chiang
中科院分区:
其他
文献类型:
--
作者:
Yan-Jun Ruan;Hsiao-Dong Chiang

文献摘要

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相似文献

摘要采用合适的同步发电机模型对电力系统稳定性分析至关重要。五阶发电机模型是电力系统中常用的模型,它忽略了定子暂态过程。但五阶发电机模型的一个关键问题是,它可能会导致稳定性分析中的高估或保守性,使其有时在精度方面不够。本文在五阶发电机模型中引入了分段阻尼项,大大提高了采用五阶发电机模型时的稳定性分析精度。提出了一种计算分段阻尼项阻尼系数的迭代方法,并通过两个试验系统的数值研究进行了验证。研究了分段阻尼系数在不同动力条件下的变化规律。提出的分段阻尼项的实际应用。
Abstract It is essential to adopt an appropriate synchronous generator model for power system stability analysis. The fifth-order generator model, which neglects the stator transients, is popular in the power industry. But one key problem with the fifth-order generator model is that it may lead to over-estimation or conservativeness in stability analysis, making it inadequate at times in terms of accuracy. In this article, a piecewise damping term is proposed and developed into the fifth-order generator model, which can greatly improve the stability analysis accuracy when the fifth-order generator model is employed. An iterative method for calculating the damping coefficient of the piecewise damping term is proposed and validated via numerical studies on two test systems. The regularity of the proposed piecewise damping coefficient under different dynamic conditions is investigated. Practical applications of the proposed piecewise damping terms are presented.
DOI: 10.1002/9780470872130
发表时间: 2010-12
期刊: --
影响因子: --
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