IEC TR 63127:2019（E）侧重于换流站的系统设计。它适用于基于线路换流换流器（LCC）技术的点对点和背靠背高压直流输电系统。本文件为买方和潜在供应商提供了有关系统设计程序和高压直流输电项目系统设计中涉及的技术问题的指导和支持信息。它可以作为起草采购规范的基础，也可以作为项目实施过程中的指南。

IEC TR 63127:2019(E) focuses on the system design of converter stations. It is applicable to point--to--point and back-to-back HVDC systems based on line-commutated converter (LCC) technology. This document provides guidance and supporting information on the procedure for system design and the technical issues involved in the system design of HVDC transmission projects for both purchaser and potential suppliers. It can be used as the basis for drafting a procurement specification and as a guide during project implementation.