电磁兼容性(EMC).第3-7部分:限值.变动载荷装置对MV、HV和EHV动力系统的连接用排放限值的评估

[中文适用范围]： IEC 61000 的这一部分提供了原则指导，可用作确定波动装置与中压、高压和超高压公共电力系统连接要求的基础（其他 IEC 文件中涵盖了低压装置）。就本报告而言，波动装置是指产生电压闪变和/或快速电压变化的装置（可以是负载或发电机）。主要目标是为系统运营商或所有者提供工程实践指导，以促进为所有互联客户提供足够的服务质量。在解决安装问题时，本文件无意取代排放限制的设备标准。本报告讨论了系统吸收干扰能力的分配。它没有解决如何减轻干扰，也没有解决如何增加系统的容量。由于本报告中概述的指南必然基于某些简化假设，因此无法保证这种方法始终为所有闪烁情况提供最佳解决方案。当全部或部分应用给定的评估程序时，就工程而言，应灵活地使用推荐的方法和工程判断。系统运营商或所有者负责指定波动装置与系统的连接要求。变动安装应理解为客户的完整安装（即包括变动部分和非变动部分）。与电压波动相关的问题可分为两个基本类别： • 电压波动导致的光源闪烁效应； • 即使在正常工作电压容差范围内，电压的快速变化也被视为一种干扰现象。该报告为协调不同电压等级之间的闪烁发射提供了指导，以满足使用时的兼容性水平。该报告主要关注控制或限制闪烁，但其中包含一个条款来解决电压快速变化的限制。注：不同国家的各种电压等级之间的界限可能有所不同（参见 IEV 601-01-28）[16]。本报告使用以下术语来表示系统电压： − 低电压（LV）是指 Un ≤ 1 kV； − 中压（MV）指1 kV < Un ≤ 35 kV； − 高压（HV）是指35 kV < Un ≤ 230 kV； − 特高压 (EHV) 是指 230 kV < Un。在本报告中，系统的功能比其标称电压更重要。例如，用于配电的HV系统可以被给予位于MV和HV系统之间的“规划级别”。 [外文原描述]： This part of IEC 61000 provides guidance on principles which can be used as the basis for determining the requirements for the connection of fluctuating installations to MV, HV and EHV public power systems (LV installations are covered in other IEC documents). For the purposes of this report, a fluctuating installation means an installation (which may be a load or a generator) that produces voltage flicker and / or rapid voltage changes. The primary objective is to provide guidance to system operators or owners on engineering practices which will facilitate the provision of adequate service quality for all connected customers. In addressing installations, this document is not intended to replace equipment standards for emission limits. This report addresses the allocation of the capacity of the system to absorb disturbances. It does not address how to mitigate disturbances, nor does it address how the capacity of the system can be increased. Since the guidelines outlined in this report are necessarily based on certain simplifying assumptions, there is no guarantee that this approach will always provide the optimum solution for all flicker situations. The recommended approach should be used with flexibility and engineering judgment as far as engineering is concerned, when applying the given assessment procedures in full or in part. The system operator or owner is responsible for specifying requirements for the connection of fluctuating installations to the system. The fluctuating installation is to be understood as the customer's complete installation (i.e. including fluctuating and non fluctuating parts). Problems related to voltage fluctuations fall into two basic categories: - Flicker effect from light sources as a result of voltage fluctuations; - Rapid voltage changes even within the normal operational voltage tolerances are considered as a disturbing phenomenon. The report gives guidance for the coordination of the flicker emissions between different voltage levels in order to meet the compatibility levels at the point of utilisation. This report primarily focuses on controlling or limiting flicker, but a clause is included to address the limitation of rapid voltage changes. This second edition cancels and replaces the first edition published in 1996 and constitutes a technical revision. This new edition is significantly more streamlined than the original technical report (Edition 1), and reflects the experiences gained in the application of the first edition. This technical report has also been harmonised with IEC/TR 61000-3-6 and IEC/TR 61000-3-13. This Technical Report has the status of a basic EMC publication in accordance with IEC Guide 107.