IEC TR 63282:2024是一份技术报告，为LVDC系统（标称电压高达（含）1 500 V DC的系统）的电压等级和相关方面（电能质量、EMC、测量等）的标准化收集信息并报告经验。 给出了建议电压值的基本原理。定义了其边界的电压（电能质量）参数的变化。然而，本文件没有详尽解释一些技术项目，并为今后的工作确定了一些差距。 注意直流电压的定义。 不考虑其中单极电压出于某些目的（例如脉冲电压）被周期性地中断的系统。 本文件不包括牵引系统。 本文件为负责不同问题标准化并由SyC LVDC协调的TCs提供技术输入。这第二版取消并取代了2020年出版的第一版。本版构成技术修订版。 与上一版相比，此版本包括以下重大技术变更: a)条款3中的优化术语和定义:修改直流系统标称电压。增加了振荡。删除主动配电系统、被动配电系统。 b)修改了电压带的定义:在第5条中，增加了电压带中电压限制的定义，从U1到U6。修改了从B4到B7的电压带的定义。 c)区分了振荡与电能质量现象的区别:在第3条中，在IEV 103-05-04的基础上增加了振荡的定义。在6.3中，阐明了振荡和电能质量之间的关系。附录B给出了一个在中国MV&LVDC系统中实际发生的LDC振荡典型例子。 d)修改了直流配电网推荐电压:明确了电压值定义中考虑的因素。电压分为两个域，配电域和安装域。LVDC中的电压建议对应于电压带列出。 e）修改了电压抗扰度等级评估:7.2中提到大规模LVDC电力电子器件的电压抗扰度等级评估需要进一步讨论，以纹波为例进行了介绍。 f)增加了直流电能质量测量方法:在7.3中，介绍了基于交流方法学的直流电能质量测量方法。并推荐了一些附加的直流电能质量指标来评估直流系统。直流电功率和电能质量测量方法在7.4中介绍，定义了电值积分时间和频率范围。典型电功率和电能质量计算方法在附录D中进行了修改。 g)增加了关于MVDC系统的附录:附录F中增加了典型MV&LVDC配电系统的用例，以支持直流微电网上8A和8b TS的开发。 h)添加了关于CurrentOS电压等级的附录:附录L中介绍了CurrentOS中应用的电压等级，以提供有关LVDC电压等级建议的更多信息。

IEC TR 63282:2024, which is a technical report, collects information and report experience for the standardization of voltage levels and related aspects (power quality, EMC, measurement, etc.) for LVDC systems (systems with nominal voltage up to and including 1 500 V DC).
Rationale for the proposed voltage values is given. Variation of parameters for the voltage (power quality) for their boundaries are defined. Nevertheless, some of the technical items are not exhaustively explained in this document and some gaps are identified for future work.
Attention is paid to the definition of DC voltage.
Systems in which a unipolar voltage is interrupted periodically for certain purposes, e.g. pulse voltage, are not considered.
Traction systems are excluded from this document.
This document gives technical inputs to TCs in charge of the standardization of different issues and coordinated by SyC LVDC.
This second edition cancels and replaces the first edition published in 2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Optimized terms and definitions in Clause 3: DC system nominal voltage is modified. Oscillation is added. Active distribution system, passive distribution system are deleted.
b) Modified the definition of voltage bands: In Clause 5, the definition of voltage limits in voltage bands is added, from U1 to U6. The definition of voltage bands, from B4 to B7, is modified.
c) Distinguished the difference between oscillation and power quality phenomenon: In Clause 3, the definition of oscillation is added based on IEV 103-05-04. In 6.3, relationship between oscillation and power quality is clarified. Annex B gives a LDC oscillation typical example which has really happened in a MV&LVDC system in China.
d) Modified the recommended voltage for distribution DC network: The factors considered in voltage values definition is clarified. And the voltage is divided in two domains, distribution domain and installation domain. The voltage recommendation in LVDC is listed corresponding to voltage bands.
e) Modified the voltage immunity level assessment: It is mentioned in 7.2 that the assessment of voltage immunity levels of mass LVDC power electronic devices need to be further discussed, ripple as an example is introduced.
f) Added DC power quality measurement methods: In 7.3, DC power quality measurement methods is introduced based on AC methodologies. And some additional DC power quality indices are recommended to assess the DC system. DC electric power and power quality measurement methods are introduced in 7.4, defining the electric value integration time and frequency ranges. Typical electric power and power quality computation methods are modified in Annex D.
g) Added an annex on MVDC system: A use case of a typical MV&LVDC distribution system is added in Annex F, to support developments of TS of 8A and 8B on DC microgrids.
h) Added an annex on CurrentOS voltage level: The voltage level applied in CurrentOS is introduced in Annex L to give more information on the LVDC voltage level recommendation.