高压直流系统规划

[中文适用范围]： IEC TR 63179:2026 是一份技术报告，为使用线路换流器（LCC）、电压源换流器（VSC）或两者的高压直流（HVDC）系统规划提供技术信息。该报告提供了选择高压直流传输系统与交流传输系统之间的一般原则，以及初步定义高压直流传输方案的流程和方法，包括换流器类型和关键参数的选择、电网稳定性分析以及各种方案之间的技术经济比较。此外，该文件还给出了规划阶段需要实现的目标。本文件适用于点对点或背靠背高压直流系统的规划。本文件也可作为直流电网系统（包括多端高压直流系统）的参考。本文件并非详尽无遗，对于某些特定的高压直流项目，可能存在其他特别重要的具体方面。 [外文原描述]： IEC TR 63179:2026, which is a Technical Report, provides technical information for planning high-voltage direct current (HVDC) systems with line-commutated converters (LCC), voltage sourced converters (VSC), or both. It provides general principles for deciding between HVDC and AC transmission systems, as well as processes and methods for preliminarily defining the HVDC transmission scheme, including selection of converter type and key parameters, grid stability analysis, and technical-economic comparison among various solutions. In addition, this document gives the objectives to be achieved in the planning phase. This document is applicable for planning a point-to-point or a back-to-back HVDC system. This document can also be used for DC grid systems (including multi-terminal HVDC systems) as a reference. This document is not exhaustive. It is possible that there are other specific aspects, that are particularly important for a specific HVDC project.