IEC TR 63363-1:20 22（E）将介绍关于VSC HVDC输电系统稳态性能要求的一般指南的“现有技术”。它涉及利用具有双向潮流能力的变换器的双端VSC高压直流输电系统的稳态性能。 本文件涵盖了VSC HVDC输电系统的不同配置，包括对称单极、不对称单极、带接地回路的双极、带专用金属回路的双极和刚性双极配置。 在不同的VSC HVDC传输系统之间存在许多变化。本文件没有详细考虑这些；因此，它不能直接用作特定项目的规范，而是为系统稳定提供一般基础-状态性能要求。 通常，性能规格基于包括两个VSC HVDC换流站的完整系统。然而，有时VSC HVDC输电系统也可以单独指定并从多个供应商处购买，而不是从单个交钥匙供应商处购买。在这种情况下，可以适当考虑每个部分与整个VSC HVDC系统性能目标的协调，并且可以清楚地定义每个部分与系统的接口。IEC 62747中介绍了VSC HVDC输电系统的主要部件。 参考IEC 62747，HVDC变电站/换流站被定义为VSC HVDC输电系统的一部分，其由安装在单个位置的一个或多个VSC变流器单元以及建筑物、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。本文件不包括交流变电站。 本文件为业主和承包商提供了有关VSC高压直流输电项目系统设计程序和系统设计中涉及的技术问题的指导和支持信息。本文件可作为起草采购规范的基础，也可作为项目实施过程中的指南。

IEC TR 63363-1:2022(E) is to present the "state of the art" with respect to general guidance on the steady-state performance demands of VSC HVDC transmission systems. It concerns the steady-state performance of two-terminal VSC HVDC transmission systems utilizing converters with power flow capability in both directions.
Different configurations of a VSC HVDC transmission system are covered in this document, including the symmetrical monopolar, asymmetrical monopolar, bipolar with earth return, bipolar with dedicated metallic return and rigid bipolar configurations.
There are many variations between different VSC HVDC transmission systems. This document does not consider these in detail; consequently, it cannot be used directly as a specification for a particular project, but rather to provide the general basis for the system steady-state performance demands.
Normally, the performance specifications are based on a complete system including two VSC HVDC converter stations. However, sometimes a VSC HVDC transmission system can also be separately specified and purchased from multiple vendors instead of single turnkey vendor. In such cases, due consideration can be given to the coordination of each part with the overall VSC HVDC system performance objectives and the interface of each with the system can be clearly defined. The major components of the VSC HVDC transmission system are presented in IEC 62747.
Referring to IEC 62747, an HVDC substation/converter station is defined as that part of the VSC HVDC transmission system which consists of one or more VSC converter units installed in a single location together with buildings, reactors, filters, reactive power supply, control, monitoring, protective, measuring and auxiliary equipment. The AC substations are not covered in this document.
This document provides guidance and supporting information on the procedure for system design and the technical issues involved in the system design of VSC HVDC transmission projects for both owners and contractors. This document can be used as the basis for drafting a procurement specification and as a guide during project implementation.