Partners save 15% on every standard

Valid

GB/T 46176-2025Reliability test methods of power module in voltage sourced converter (VSC) valves (English PDF)

柔性直流换流阀功率模块可靠性试验方法

Open the GB/T 46176-2025 preview as PDF

Preview — first pages of GB/T 46176-2025 (full document: 28 pages)

This is a limited preview

Buy now to download the full PDF (28 pages)

Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 5, 2025

Implementation date

May 1, 2026

Scope

GB/T 46176-2025 is the English-translated version of 柔性直流换流阀功率模块可靠性试验方法.

GB/T 46176-2025 is the Chinese national standard covering testing the power module of an HVDC Flexible valve — the accelerated ageing of the IGBTs and the capacitors, the power and thermal cycling, the bypass switch that must operate when the module fails, and the reliability figures a converter with thousands of modules depends on. One module failing must not stop the link, which is why the bypass is tested as hard as the module. First edition, in force from 1 May 2026. Issued on 5 October 2025, it has been in force since 1 May 2026.

Document preview — GB/T 46176-2025

National Standard of the People's Republic of China

ICS: 29.200
Classification: K 46

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative References1
3 Terms and Definitions2
3.1 Valve Component Related Terminology2
3.2 Valve Structure Related Terminology2
3.3 Reliability-Related Terminology2
4 General Rules3
4.1 General Requirements3
4.2 Environmental Conditions3
4.3 Test Category3
4.4 Sample3
4.5 Test Item3
4.6 Reliability Test Failure Statistics and Criteria6
5 Bypass test 6.6
5.1 Fault Bypass Test6
5.2 Bypass switch malfunction test6
6 Overvoltage and short-circuit test7
6.1 Experimental Objectives7
6.2 Sample7
6.3 Test Requirements and Methods7
7 Overcurrent turn-off test7
7.1 Experimental Objectives7
7.2 Sample7
7.3 Test Requirements7
7.4 Test Methods7
8 Short-circuit current test 7.7
8.1 Experimental Objective7
8.2 Sample7
8.3 Test Requirements7
8.4 Test Methods8
9 Power Cycling Test8
9.1 Experimental Objective8
9.2 Sample8
9.3 Test Requirements8
9.4 Test Methods8
10 Electromagnetic compatibility (immunity) test8
10.1 Experimental Objective8
10.2 Sample8
10.3 Test Requirements and Methods9
11 Environmental adaptability test10
11.1 Low Temperature Test10
11.2 High Temperature Test11
11.3 Temperature Change Test12
11.4 Alternating Damp Heat Test13
11.5 Vibration Test14
11.6 Impact Test15
11.7 Salt spray test (optional)15
11.8 Mold Test (Optional)16
11.9 Atmospheric Neutron Accelerated Irradiation Experiment (Optional)17
12 Component-level reliability testing19
12.1 General Rules19
12.2 Dual-pulse test for turn-off semiconductor devices19
12.3 Short-circuit protection test for turn-off semiconductor devices20
12.4 Thermal stability test of DC capacitor20
12.5 DC capacitor terminal extreme condition voltage withstand test21
12.6 DC Capacitor Damped Discharge Test21
12.7 DC Capacitor Durability Test21
12.8 Long-term high and low temperature endurance test of power module secondary board22
13 Expression of Reliability Test Results22

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents". Drafting.

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the China Electrical Equipment Industry Association.

This document is under the jurisdiction of the National Technical Committee on Standardization of High Voltage Direct Current Transmission Equipment (SAC/TC333).

This document was drafted by: China Southern Power Grid Science Research Institute Co., Ltd., Xi'an High Voltage Apparatus Research Institute Co., Ltd., and Guangzhou South...

State Grid Scientific Research Technology Co., Ltd., China Electric Power Research Institute Co., Ltd., Rongxin Huike Electric Co., Ltd., State Grid Economic and Technological Development Zone Co., Ltd.

Research Institute Co., Ltd., XJ Electric Co., Ltd., the Fifth Research Institute of Electronics of the Ministry of Industry and Information Technology, and Guangdong Power Grid Co., Ltd.

State Power Supply Bureau, Nanjing NARI Relay Protection & Electrical Co., Ltd., Xi'an Xi'an Electric Power System Co., Ltd., Beijing Huairou Laboratory, Zhuhai Kaipu Testing Technology Technology Co., Ltd., Shanghai Jiao Tong University, TBEA Xinjiang New Energy Co., Ltd., China Electric Power Engineering Co., Ltd., Henan Pinggao Electric Co., Ltd., Xi'an Jiaotong University, Tsinghua University, China Southern Power Grid Co., Ltd., China Huaneng Group Clean Energy Technology Research Institute Co., Ltd., Changzhou Borui Electric Automation Equipment Co., Ltd., Guangdong Power Grid Co., Ltd. Electric Power Research Institute, China South Electric Power Research Institute of State Grid Corporation of China (UHVDC) and State Grid Sichuan Electric Power Company Institute of Power Science, China Southern Power Grid Co., Ltd. Ultra-High Voltage Transmission Company, China Qiyuan Engineering Design & Research Institute Co., Ltd., Yunnan Electric Power Research Institute of State Grid Corporation of China, Electric Power Research Institute of State Grid Fujian Electric Power Co., Ltd., and China Southern Power Grid Co., Ltd.

The company's ultra-high voltage power transmission company, Qujing Bureau.

The main drafters of this document are: Hou Ting, Zhou Huigao, Ji Yuke, Gao Yang, Huang Chao, Yu Qiong, Yang Liu, Li Tan, Han Kun, Xu Fan, Pan Guangze, and Chen Jun.

Yin Guanxian, Li Lingfei, Wei Wei, Hu Yu, Lin Guangke, Guo Guansheng, Chi Putian, Ma Ke, Yao Cheng, Ye Wei, Xia Kepeng, Wen Fuyue, Zhang Bo, Zhu Lingyu Tang Xueteng, Xie Huifan, Chen Yijing, Zhong Qidi, Gu Zhibin, Fu Chuang, Xu Shukai, Wang Jinyu, Yang Xiaohui, Xu Zimeng, Xiao Kai, Shi Jian, Tan Lingqi Xiong Lingfei, Liu Longchen, Shen Yue, Jia Yanling, Wang Kefeng, Zou Yansheng, Tong Congwei, Sun Mei, Cai Runqing, Ji Xiaozhen, Peng Junzhen, Gai Bin, Li Chao, Chen Yusheng Dai Shulong and Tang Rubin.

Reliability Test Method for Flexible DC Converter Valve Power Module

1 Scope

This document defines the terminology and definitions related to reliability testing of flexible DC converter valve power modules, and describes the reliability testing methods, including...

It includes the general requirements for reliability testing, the various reliability tests, and the presentation of the reliability test results.

This document applies to reliability testing of power modules for flexible DC converter valves.

2 Normative references

GB/T 2423.1-2008

GB/T 2423.2-2008

GB/T 2423.4-2008

GB/T 2423.5-2019

GB/T 2423.17-2024

GB/T 2423.22-2012

GB/T 2900.99-2016

GB/T 13498-2017

GB/T 17626.2-2018

GB/T 17626.3-2023

GB/T 17626.4-2018

GB/T 17626.5-2019

GB/T 17626.6-2017

GB/T 17626.8-2006

GB/T 17626.9-2011

GB/T 17626.10-2017

GB/T 17626.18-2016

GB/T 17702-2021

GB/T 27025-2019

GB/T 33348-2024

GB/T 34118-2017

GB/T 40865-2021

GB 50260-2013

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 28 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 2423.1-2008 · GB/T 2423.2-2008 · GB/T 2423.4-2008 · GB/T 2423.5-2019 · GB/T 2900.99-2016 · GB/T 13498-2017 · GB/T 17626.2-2018 · GB/T 17626.3-2023 · GB/T 17626.4-2018 · GB/T 17626.5-2019 · GB/T 17626.6-2017 · GB/T 17626.8-2006 · GB/T 17626.10-2017 · GB/T 17626.18-2016 · GB/T 17702-2021 · GB/T 27025-2019 · GB/T 33348-2024 · GB/T 34118-2017 · GB 50260-2013

Editions of GB/T 46176

Edition	Title	Revision	Status
GB/T 46176-2025	Reliability test methods of power module in voltage sourced converter (VSC) valves	current edition	Current

This page sells the current edition, GB/T 46176-2025. Earlier editions are listed for reference only.

How to Buy GB/T 46176-2025

1Add to cart. Click the "Buy GB/T 46176-2025" button on this page. You can add more standards before checkout.
2Checkout. Enter your email and billing details. Payment is processed securely by Stripe (cards, Apple Pay, Google Pay supported).
3Instant delivery (0–9 sec). Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4Invoice included. A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.