GB/T 38878-2020System tests for the projects of high-voltage direct current (HVDC) transmission power using voltage sourced converters (VSC) (English PDF)
柔性直流输电工程系统试验
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 2, 2020
Implementation date
January 1, 2021
Scope
GB/T 38878-2020 is the English-translated version of 柔性直流输电工程系统试验.
GB/T 38878-2020 is the Chinese standard "System tests for the projects of high-voltage direct current (HVDC) transmission power using voltage sourced converters (VSC)".
Its scope clause reads: This standard specifies the general rules of flexible DC transmission engineering system test, station system test, end-to-end system test and trial operation requirements.
This standard applies to end-to-end flexible DC transmission projects with symmetrical unipolar, asymmetrical unipolar and bipolar connections. Other forms of softness The reference direct current transmission project can also be used. Its clauses include terms and definitions.
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Document preview — GB/T 38878-2020
National Standard of the People's Republic of China
- ICS
- 29.240.01
- Classification
- K 40
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 General
- 5 Station system test
- 5.1 Preparation for the test
- 5.2 Test items and requirements
- 6 End-to-end system test
- 6.1 Preparation for the test
- 6.2 Test items and requirements
- 6.3 Multi-terminal system test
- 7 Commissioning
1 Scope
This standard specifies the general rules of flexible DC transmission engineering system test, station system test, end-to-end system test and trial operation requirements.
This standard applies to end-to-end flexible DC transmission projects with symmetrical unipolar, asymmetrical unipolar and bipolar connections. Other forms of softness
The reference direct current transmission project can also be used.
2 Normative references
The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.
GB/T 30553 High-voltage DC transmission based on voltage source converter
GB/T 33348 High-voltage DC transmission voltage source converter valve electrical test
GB/T 34118 Terminology of voltage source converters for high-voltage DC systems
GB/T 34139 Technical Specification for Flexible DC Transmission Inverter
GB/T 35703 Complete Design Specification for Flexible DC Transmission System
GB/T 35745 Flexible DC transmission control and protection equipment technical requirements
GB/T 37011 Technical Specification for Transformers for Flexible DC Transmission
3 Terms and definitions
GB/T 30553, GB/T 33348, GB/T 34118, GB/T 34139, GB/T 35703, GB/T 35745 and GB/T 37011
The defined and following terms and definitions apply to this document. For ease of use, the following repeatedly lists GB/T 34118, GB/T 37011
Some terms and definitions in
3.1 TransformerforVSC-HVDC for flexible DC transmission
Transformer for transmitting electrical energy between the connection point of the AC system and one or more voltage source converter units.
Note. The transformer for flexible DC transmission is simply referred to as the flexible transformer. In different applications, the flexible transformer is also called "connecting transformer" or "converter transformer"
[GB/T 37011-2018, definition 3.1.5]
3.2 Subsystem test
Based on the completion of the installation test of the individual equipment in the converter station, the test to verify the function and technical indicators of the entire group of equipment.
3.3 Station system test
On the basis of the completion of the sub-system test, the relevant primary equipment of the converter station has live conditions, and the function of the converter station is verified in each converter station.
test.
3.4 Endtoendsystemtest
Tests to verify the function and characteristics of the interaction between the flexible DC transmission system at both ends and the AC system connected to it.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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