GB/Z 163.1-2025High-voltage direct current (HVDC) systems - Guidance to the specification and design evaluation of AC filters - Part 1: Overview (English PDF)

Foreword

This document is a report-type guidance technical document.

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 is Part 1 of GB /Z 163 "Specifications and Design Evaluation Guidelines for AC Filters in High Voltage Direct Current Systems". GB /Z 163 has been... The following sections have been published.

---Part 1: Introduction;

---Part 4: Equipment.

This document is modified to adopt IEC TR62001-1:2021 "Specification and Design Evaluation Guidelines for AC Filters in High Voltage DC Systems" Section 1 Part. Overview, the document type has been changed from an IEC technical report to a national standardization guidance technical document of my country.

The technical differences between this document and IEC TR62001-1:2021, and the reasons therefor, are as follows.

---The scope description has been revised (see Chapter 1 to comply with GB/T 1.1-2020);

---The symbol for the quality factor of reactors has been changed to QL, and the symbol for the quality factor of filters is now QF, to avoid symbol redundancy. See 7.3, 7.4.1, 7.4.2, 7.5.1.1, 8.2.1, 8.2.3, 8.2.4, and 11.2.2;

---The illustrative diagram references for second-order and third-order filters (see 7.3) have been changed due to a reference error;

---The IGB T converter has been changed to a voltage source converter, which is more in line with domestic usage (see 11.2.4). The following editorial changes have been made to this document.

---Appendix A has been deleted because the alternative procurement procedure has never been used domestically (see Appendix A of IEC TR62001-1:2021);

---The formula (B.10) has been corrected (see B.3).

Introduction

High-voltage direct current (HVDC) transmission, as an important means to solve the problems of large-capacity, long-distance power transmission and asynchronous grid interconnection, plays a crucial role in my country's energy optimization and regional interconnection. It plays an important role in the network.

AC filters are an important component of high-voltage direct current (HVDC) transmission systems. With the development of HVDC transmission technology, the demand for AC filters has increased.

The basic requirements, performance, and components of AC filters have all been raised to higher standards. This is particularly relevant in DC transmission systems that traditionally use grid-commutated converters.

Based on the engineering foundation, requirements for harmonics in flexible DC transmission projects were further proposed. GB /Z 163, "AC Filtering for High Voltage Direct Current Systems," was compiled.

The "Specifications and Design Evaluation Guidelines for High Voltage Direct Current Transmission Equipment" aims to provide guidance for the construction of high voltage direct current transmission projects in my country and is planned to consist of five parts.

---Part 1: Introduction. The purpose is to provide specifications for AC filters in high-voltage direct current (HVDC) systems employing grid-commutated converters.

Specifications, permissible distortion limits, harmonic generation, filter configuration, filter performance calculation, filter switching, reactive power control, and owner-specified parameters. Number and requirements.

---Part 2: Performance. The aim is to provide standards, field measurements, and verifications based on current interference.

---Part 3: Modeling. The aim is to provide modeling for converter harmonic interactions, background harmonics, AC grid impedance, and AC filtering. Device performance simulation.

---Part 4: Equipment. The purpose is to provide steady-state and transient settings, power loss, audible noise, and other parameters for AC filters and their components.

Design issues and special applications, filter protection, seismic requirements, equipment design and test parameters.

---Part 5: AC-side harmonics and corresponding harmonic limits in flexible DC transmission. The aim is to address the phase harmonics in flexible DC transmission projects. Specific issues related to the design of closed filters.

1 Scope

This document specifies the AC filter specifications and AC side harmonic performance measurement for high-voltage direct current (LCCHVDC) systems using grid-commutated converters.

Calculations, such as terms and definitions, an overview of AC filter specifications for high-voltage DC systems, limits on permissible distortion rates, harmonic generation, and filter configuration.

It provides guidance on filter performance calculations, filter switching and reactive power control, and user-specified parameters and requirements. It is primarily intended for public utilities.

The company and consulting firms use it to publish new high-voltage direct current engineering specifications and evaluate the designs of potential suppliers.

This document applies to the suppression of harmonic distortion and audible sensitive frequency interference in high-voltage direct current systems employing grid-commutated converters (LCCs).

AC-side filters are not suitable for power line carrier (PLC) and radio interference spectrum. Voltage source converter (VSC) based filters... The AC filter for high-voltage DC systems should be used as a reference.

The majority of this document focuses on "conventional" AC filter technology and LCCHVDC, CIGRE Technical Manual 754 and IEC TR62001-5 discusses voltage source converters (VSCs).

2 Normative references

This document has no normative references.

3 Terms and Definitions

The following terms and definitions apply to this document.