标准摘要
[中文适用范围]: 本部分IEC 60919(技术报告)提供了关于高压直流(HVDC)系统瞬态性能和故障保护要求的指导。它涉及利用由三相桥(双路)连接组成的12脉冲换流单元的两端HVDC系统的故障和开关相关的瞬态性能,但不涵盖多端HVDC输电系统。然而,讨论了作为两端系统一部分的并联换流器和并联线路的某些方面。假设换流器使用晶闸管阀作为桥臂,采用无间隙金属氧化物避雷器进行绝缘配合,并具有双向功率流动能力。本报告不考虑二极管阀。本报告仅涵盖线换流器,包括电容换流器电路配置。半导体线换流器的一般要求见IEC 60146-1-1、IEC 60146-1-2和IEC 60146-1-3。不考虑电压源换流器。该报告由三部分组成。涵盖瞬态性能的IEC 60919-2将伴随配套文件IEC 60919-1(稳态性能)和IEC 60919-3(动态性能)。已努力避免三部分内容重复。因此,建议用户在准备两端HVDC系统的采购规范时考虑所有三个部分。读者应注意系统性能规范与系统各部件设备设计规范之间的区别。虽然本报告未定义设备规范和测试要求,但指出了可能影响系统性能规范的规范。注意,详细的抗震性能要求不包括在本技术报告中。此外,由于不同HVDC系统之间可能存在许多变化,这些变化未在此详细考虑。因此,本报告不应直接用作特定项目的规范,而应作为为特定电力输电方案量身定制的适当规范的基础。本报告无意区分用户和制造商在指定工作方面的责任。本报告使用的高压直流(HVDC)输电术语和定义见IEC 60633。由于设备通常分别规范和采购,HVDC输电线路、接地极线路和接地极仅因其对HVDC系统性能的影响而包含在内。就本报告而言,假设HVDC变电站由安装在同一地点的一个或多个换流单元以及建筑物、电抗器、滤波器、无功电源、控制、监测、保护、测量和辅助设备组成。虽然本报告未讨论交流开关站,但包括交流滤波器和无功电源,尽管它们可能连接到与HVDC变电站分开的交流母线上。 [外文原描述]: IEC/TR 60919-2:2008 provides guidance on the transient performance and fault protection requirements of high voltage direct current (HVDC) systems. It concerns the transient performance related to faults and switching for two-terminal HVDC systems utilizing 12-pulse converter units comprised of three-phase bridge (double way) connections but it does not cover multi-terminal HVDC transmission systems. However, certain aspects of parallel converters and parallel lines, if part of a two-terminal system, are discussed. The converters are assumed to use thyristor valves as the bridge arms, with gapless metal oxide arresters for insulation co-ordination and to have power flow capability in both directions. Diode valves are not considered in this report. This second edition cancels and replaces the first edition, published in 1991, and constitutes a technical revision. It includes the following main changes with respect to the previous edition: it concerns only line-commutated converters;isignificant changes have been made to the control system technology; some environmental constraints, for example audible noise limits, have been added; the capacitor coupled converters (CCC) and controlled series capacitor converters (CSCC) have been included.
英文名称Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 2: Faults and switching