带线路换流器的高压直流（HVDC）系统的性能.第1部分:稳态条件

[中文适用范围]： IEC 60919-1 规定了高压直流（HVDC）系统的稳态性能要求的一般指南。它涉及利用由三相桥（双路）连接组成的12脉冲换流单元构成的两端HVDC系统的稳态性能，但不涵盖多端HVDC输电系统。假设两个终端均使用晶闸管阀作为主要半导体阀，并具有双向功率流动能力。本文件不考虑二极管阀。本文件仅涉及线换流器，包括电容换流电路配置。半导体线换流器的通用方面在IEC 60146-1-1、IEC TR 60146-1-2和IEC 60146-1-3中给出。不涉及电压源换流器。 本文件区分了系统性能规范和系统中各个组件的设备设计规范。本文件未定义设备规范和测试要求。详细的抗震性能要求也被排除在外。此外，由于不同的HVDC系统存在许多变体，本文件未详细考虑这些变体；因此，它不直接作为特定项目的规范，而是作为为适合实际系统需求而量身定制适当规范的基础。 [外文原描述]： IEC TR 60919-1:2020(E) provides general guidance on the steady-state performance requirements of high-voltage direct current (HVDC) systems. It concerns the steady-state performance of two-terminal HVDC systems utilizing 12-pulse converter units comprised of three-phase bridge (double-way) connections, but it does not cover multi­terminal HVDC transmission systems. Both terminals are assumed to use thyristor valves as the main semiconductor valves and to have power flow capability in both directions. Diode valves are not considered in this document. This edition includes the following significant technical changes with respect to the previous edition: - Figure 8 and Figure 20 have been updated, a new Figure 18 "LCC/VSC hybrid bipolar system" has been added; - the HVDC system control objectives have been supplemented; - additional explanations regarding the HVDC system control structure have been given; - a new subclause 13.6 on HVDC system protection has been added.