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首页> 外文期刊>Hydrotechnical Construction >INFORMATIONAL FUNDAMENTALS OF THE MULTIPARAMETER DIFFERENTIAL PROTECTION OF BUSBAR GENERATORS AGAINST SINGLE LINE-TO-GROUND FAULTS
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INFORMATIONAL FUNDAMENTALS OF THE MULTIPARAMETER DIFFERENTIAL PROTECTION OF BUSBAR GENERATORS AGAINST SINGLE LINE-TO-GROUND FAULTS

机译：母线发电机对单线到地面故障的多道ameter差动保护的信息基础

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摘要

The multiparameter differential protection of busbar generators against single line-to-ground faults (SLGF) is studied in accordance with information theory of protection. Such protection is based on the use of the individuality property of harmonic groups. Moreover, it controls many parameters of the higher harmonics of differential currents and is shown to have absolute selectivity. Given the properties of the harmonics of some groups, this perfection is achieved to maintain the aggregate information support of protection at a high level with SLGF in areas where the harmonics of other groups are insufficient. Depending on network parameters and modes, multiparameter differential protection does not require settings or adjustments. This advantage is provided by using relative characteristic values that are generated by the protection during operation. Such protection is sensitive due to a special active-adaptive recognition path, which can measure low-level harmonics against a background of the predominant component of the fundamental harmonic in the current.
机译：根据保护的信息理论，研究了母线发电机对单线到地故障（SLGF）的多道马级差分保护。这种保护基于谐波群的个性性质的使用。此外，它控制了差分电流较高谐波的许多参数，并且被示出具有绝对选择性。鉴于某些群体的谐波属性，实现了这种完美，以便在其他群体的谐波不足的地区，在高水平的情况下保持对保护的总信息支持。根据网络参数和模式，MultiParameter差动保护不需要设置或调整。通过使用在操作期间产生的相对特征值来提供该优点。由于特殊的主动自适应识别路径，这种保护是敏感的，这可以根据电流中基本谐波的主要组成部分的背景测量低电平谐波。

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