GB/T 30553-2023High-voltage direct current (HVDC) power transmission using voltage sourced converters (VSC) (English PDF)

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:

This document replaces GB/T 30553-2014 "High Voltage DC Transmission Based on Voltage Source Converter" and is consistent with GB/T 30553-2014 in addition to structural adjustments and editorial changes, the main technical changes are as follows:

---Added "modular multi-level converter and cascaded two-level converter" (see Chapter 1);

---Added reference standards IEC 62747 and IEC 62501 (see Chapter 3) for terminology and definition needs;

---Changed the content of "Overview" in Chapter 3 (see 3.1, 3:1 of the:2014 version);

---Deleted the terms "VSC converter station", "connecting transformer", "phase reactor", "AC system side harmonic filter" and "high frequency blocking filter" "Reactor", "Common mode suppression reactor", "DC harmonic filter" and "DC reactor" and "Power semiconductor" "VSC topology" Terms such as "operating status" and "insulation coordination" (see 3.5:1~3:5:3, 3:5:5, 3:5:7 and 3:5:9~3:5:11 of the:2014 edition) 3:3, 3:4, 3:6 and 3:10);

---Change the term "valve side harmonic filter" to "converter side high frequency filter", and the English equivalent of the term "standby" to "no-loadoperating", "noloadoperating" changed to "idling" (see 3.3:3, 3:4:2 and 3:4:3,:2014 version 3:5:8, 3:11:2 and 3:11:3);

---Added active power and reactive power calculation formulas, changed "The principle of reactive power control is shown in Figure 4" to "When the active power when the rate P=0, the principle of reactive power control is shown in Figure 4" (see 4.1:2:2 and 4:1:2:3, 4:1:2:2 and:2014 version 4:1:2:3);

---Changed Figure 7, Figure 8, Figure 9 and Figure 10 (see 4.3:3:3, 4:3:4 and 4:3:5,:2014 version of 4:3:3:3, 4:3:4 and 4:3:5);

---Changed the content of "bipolar wiring method" (see 4.3:4,:2014 version of 4:3:4);

---Changed the content of "Semiconductor Devices for VSC Power Transmission" (see 4.4,:2014 version of 4:4);

---Changed Figure 13 and Figure 15, and changed "The neutral point voltage is the voltage at the midpoint of the DC capacitor" to "The neutral point voltage is the average voltage at the two DC terminals of the converter" (see 5.2:3:1 and 5:2:3:2, 5:2:3:1 and 5:2:3:2 of the:2014 edition);

---Change "Valve voltage is the sum of these VSC valve stage voltages" to "Valve voltage is the capacitor voltage of the active submodule (i.e. the capacitor voltage is applied to the main terminals of the VSC valve stage)", adding a third topology used by the VSC valve stage (See 5.3:1,:2014 version of 5:3:1);

---Changed Figure 18, Figure 19, Figure 20, and the applicable scope of the MMC topology based on the full-bridge VSC valve stage (see 5.3:2 and 5:3:3,:2014 version of 5:3:2 and 5:3:3);

---Added "CTL topology based on half-bridge VSC subunit" and "CTL topology based on full-bridge VSC subunit" Relevant content (see 5.3:4 and 5:3:5);

---Changed the VSC valve rated current, transient current and voltage design points (see 5.4:2 and 5:4:3,:2014 version of 5:4:2 and 5:4:3);

---Changed "switching device" to "switchable semiconductor device" and changed the design of the converter with "controllable voltage source" type VSC valve Key points (see 5.4:5,:2014 version of 5:4:5);

---Added the role and arrangement of subunit DC capacitors and valve reactors (see 5.6:1 and 5:6:7);

---Changed the configuration of the VSC converter station circuit breaker, as well as the design requirements for connecting transformers and phase reactors (see 5.6:3 and 5:6:6, 2014 version 5:6:3 and 5:6:6);

---Changed the content of sub-module capacitor voltage balance control (see 5.6:8:2:5,:2014 version of 5:6:8:2:5);

---Deleted the relevant content of "common mode suppression reactor" (see 5.6:10 of the:2014 version);

---Added "dynamic energy dissipation system" related content (see 5.6:12);

---Change "DC side chopper circuit" to "dynamic energy dissipation system" (see 6.6,:2014 version of 6:6);

---Changed the content related to harmonic performance (see 9.1,:2014 version of 9:1);

---Deleted the description of Figure 29, Figure 30 and its description (see 9.3:1 of the:2014 version);

---The content related to specific harmonic modulation has been changed and moved to Appendix B (see Appendix B,:2014 version 9:3:2):

This document is equivalent to IEC TR62543:2022 "High Voltage DC Transmission Based on Voltage Source Converter": The file type is produced by IEC technology:

The report is adjusted to my country's national standards:

This document has made the following minimal editorial changes:

---For ease of use, a "Note" has been added to the "Scope" chapter (see Chapter 1);

---For ease of use, the indexing number description is added in Figure 4, Figure 26, Figure 27 and Figure 28 (see Figure 4, Figure 26, Figure 27 and

Figure 28);

---Correct the text symbol "phi" of the angle in Figure 3 to "delta" (see 4.1:2:2);

---Correct the text symbol "Ud" for DC capacitor voltage to "Udc" (see 4.1:3):

Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:

1 Scope

This document gives general guidelines for voltage source converters (VSC) for HVDC transmission: The converter described in this document is not only an electrical Voltage source type (including capacitive energy storage medium whose DC voltage polarity remains unchanged), and also includes the use of semi-circuit energy storage medium that can be turned on and off according to the control signal:

Self-commutating type of conductor device: This document applies to two-level and three-level switching using pulse width modulation (PWM, referred to as "pulse width modulation"):

converters, as well as multi-level converters, modular multi-level converters and cascaded two-level converters, excluding square wave output without pulse width Modulated two-level and three-level converters:

High-voltage direct current transmission based on voltage source converters is called "VSC direct current transmission":

Note: VSC DC transmission is also called "flexible DC transmission":

This document describes different types of circuit topologies used for VSC power transmission, their main operating characteristics and typical applications, with the overall goal of Provide assistance to buyers when determining VSC transmission options:

This document does not cover grid phase-commutated converters and current source converters:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations for undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:

Note: GB/T 33348-2016 Electrical test of voltage source converter valves for high-voltage direct current transmission (IEC 62501:2014, IDT) Note: GB/T 34118-2017 Terminology for voltage source converters for high voltage DC systems (IEC 62747:2014, IDT)

3 Terms and definitions

The terms and definitions defined in IEC 62747 and IEC 62501 and the following apply to this document:

ISO and IEC maintain terminology databases used for standardization at:

- ISO online browsing platform: http://www:iso:org/obp

3.1 Overview

The basic terms and definitions of voltage source converters for high-voltage direct current transmission are found in IEC 62747: Voltage source converter valve for high voltage direct current transmission See IEC 62501 for electrical test terminology:

For ease of understanding, Figure 1 shows the basic block diagram of the VSC transmission system: Some devices in the diagram may depend on the converter topology Omitted or different from the needs of the project: