考虑异步电动机的短路电流计算方法的比较

Abdullo Majidov, S. Hafizov, Temirkhan Isaev, Rustamzhon Nortozhiev, M. Pashaev, Kamoldzhon Yuldashev
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引用次数: 0

摘要

本文讨论了电厂、变电站辅助系统中异步电动机额定电流大于短路电流周期分量初值1.0%时,异步电动机对短路电流影响的核算问题。以塔吉克斯坦共和国杜尚别TPP(火力发电厂)1号辅助系统运行的8段为例,该辅助系统有9台异步电动机。给出了ETAP (Electrical Transient Analyzer Program)程序中计算数学模型的描述。在给定模型的帮助下,比较了GOST 28249-93标准和IEC 60909标准,以评估它们在解决问题方面的质量,计算结果的差异。这种技术使计算异步电动机对短路电流影响的方法得到改进。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparison of The Methodology for Calculating Short-Circuit Currents Taking into Account Asynchronous Motors
This paper discusses the issue of accounting for the effect of asynchronous motors on the short-circuit current if the rated current of the asynchronous motors more than 1.0% of the initial value of the periodic component of the short-circuit current in auxiliary systems of power plants and substations. As an example, the operating VIII - section of the auxiliary system of TPP (Thermal Power Plant) #1 in Dushanbe, the Republic of Tajikistan with nine asynchronous motors. The description of the computational-mathematical model in the ETAP (Electrical Transient Analyzer Program) program is given. With the help of the given model, the standards GOST 28249-93 and IEC 60909 were compared in order to assess their qualities in terms of solving the problem, the difference as a result of the calculation. This technique makes it possible to improve the method of accounting for the effect of asynchronous motors on the short-circuit current.
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