GB/T 20996.3-2020 English PDFUS$624.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 20996.3-2020: Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 3: Dynamic conditions Status: Valid
Basic dataStandard ID: GB/T 20996.3-2020 (GB/T20996.3-2020)Description (Translated English): Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 3: Dynamic conditions Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K46 Classification of International Standard: 29.200; 29.240.99 Word Count Estimation: 33,397 Date of Issue: 2020-12-14 Date of Implementation: 2021-07-01 Older Standard (superseded by this standard): GB/Z 20996.3-2007 Quoted Standard: IEC 60146-1-1; IEC/TR 60146-1-2; IEC 60146-1-3; IEC TR 60919-1-2010; IEC TR 60919-2-2008 Adopted Standard: IEC TR 60919-3-2016, IDT Regulation (derived from): National Standard Announcement No. 28 of 2020 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration Summary: This standard specifies comprehensive guidelines for the dynamic performance of HVDC systems. The dynamic performance in this standard refers to events and phenomena whose characteristic frequency or time area covers the range from transient conditions to steady-state conditions. The dynamic performance involved should belong to the mutual influence between the high-voltage DC system at both ends and the connected AC system or its components, such as power plants, AC lines and buses, and reactive power sources, under steady-state or transient conditions. It is assumed that the high-voltage DC system at both ends adopts a 12-pulse converter unit composed of three-phase bridge wiring (dual circuit), which has two-way power transmission capability, and the converter adopts a gapless metal oxide arrester for insulation coordination The thyristor valve serves as the bridge arm. Diode converter valves are not considered in this standard. For the multi-terminal HVDC transmission system, although not GB/T 20996.3-2020: Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 3: Dynamic conditions---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. (Performance of HVDC systems using grid-commutated converters Part 3: Dynamics) ICS 29:200;29:240:99 K46 National Standards of People's Republic of China Replace GB /Z 20996:3-2007 High voltage direct current using grid commutated converter System performance part 3: dynamics (IEC TR60919-3:2016, IDT) 2020-12-14 release 2021-07-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee Table of contentsPreface Ⅲ 1 Scope 1 2 Normative references 1 3 Summary of HVDC Dynamic Performance Specifications 2 3:1 Dynamic performance specification 2 3:2 General description 2 4 AC system power flow and frequency control 3 4:1 Overview 3 4:2 Power flow control 3 4:3 Frequency control 5 5 AC dynamic voltage control and interaction with reactive power source 6 5:1 Overview 6 5:2 Voltage and reactive power characteristics of HVDC converter stations and other reactive power sources 6 5:3 Bus voltage deviation of HVDC converter station 10 5:4 Interaction of voltage and reactive power between converter station and other reactive power sources 11 6 Transient and steady-state stability of AC systems 12 6:1 Overview 12 6:2 Features of active power and reactive power modulation 13 6:3 Network status classification 17 6:4 Parallel connection of AC grid and HVDC system 17 6:5 Improvement of stability in the connected AC grid 18 6:6 Determination of damping control characteristics 18 6:7 Implementation of the damping controller and communication requirements 19 7 Dynamic performance of HVDC systems at higher frequencies 19 7:1 Overview 19 7:2 Types of instability 20 7:3 Information required for design 21 7:4 Effective measures to restrain instability 21 7:5 Damping low-order harmonics through control 22 7:6 Verification of meeting higher frequency performance requirements 22 8 synchronous resonance 22 8:1 Overview 22 8:2 Sub-synchronous vibration criteria related to HVDC systems 23 8:3 Screening criteria for determining the sensitivity of generating sets to torsional vibration 23 8:4 Performance requirements for using a sub-synchronous damping controller (SSDC) 24 8:5 Performance test 24 8:6 Protection of turbine generators 24 9 Interaction with power plants 25 9:1 Overview 25 9:2 Special effects 25 9:3 Special considerations for nuclear power plants 27 Reference 28ForewordGB/T 20996 "Performance of HVDC System Using Grid Commutation Converter" is divided into 3 parts: ---Part 1: Steady state; ---Part 2: Failure and operation; ---Part 3: Dynamics: This part is Part 3 of GB/T 20996: This section was drafted in accordance with the rules given in GB/T 1:1-2009: This part replaces GB /Z 20996:3-2007 "Performance of High-Voltage DC System Part 3: Dynamics", and is in line with GB /Z 20996:3-2007 Compared with:2007, the main technical changes except for editorial changes are as follows: ---Modified the scope (see Chapter 1, Chapter 1 of the:2007 edition); ---Modified the normative reference documents (see Chapter 2, Chapter 2 of the:2007 edition); ---The provision of "frequency control with zero power setting" has been added (see 4:3); ---Modified the expression of "commutation impedance" in the active power/reactive power related factors of HVDC converter (see 5:2:2,:2007 Year 5:2:1); ---Added the requirement to install equipment to meet the reactive power demand under steady-state conditions (see 5:2:5); --- Added "Voltage Characteristics of Static Synchronous Compensation Device (STATCOM)" and related content (see 5:2:7); ---Added the expression of static synchronous compensation device suppressing transient voltage changes (see 5:4:2); ---Added the description of the shortcomings of the synchronized camera (see 5:4:3); ---Added "HV DC converter, reactive power source that can be switched on and off and static synchronous compensation device" and related content (see 5:4:4); ---Added the relevant regulations for limiting power reversal of the high-voltage DC system at both ends of the power cable (see 6:2:2); ---Added the expression of real-time simulation device for control system verification (see 6:6); ---The external conditions for the dynamic performance design of high-voltage DC systems at higher frequencies need to be considered "impedance frequency characteristics, including parallel power The change in the number of containers and the possibility of islands formed by near-zone generators (isolated from the AC main network): "(See 7:3); ---Added the importance of real-time simulation device and test requirements (see 7:6); ---Modified the natural frequency of torsional vibration (see 8:1, 8:1 in:2007 edition); ---Added the expression of subsynchronous torsional vibration (see 8:1); --- "SSR" is changed to "SSTI" (see 8:2, 8:2 in:2007 edition); ---Added the content that needs further research when UIF is greater than 0:1 (see 8:3); ---Modified the expression of the interaction coefficient of the generator set (see 8:3, 8:3 in the:2007 edition); --- Deleted "Therefore, for each turbine generator set with potential torsional vibration instability, there should be sub-synchronous resonance (SSR) protection Relay: "(See 8:4 in:2007 edition); ---Added the relevant regulations for the control and protection of turbine generators in the HVDC transmission system with subsynchronous damping controllers (see 8:6); ---Added the description of the DC restart sequence (see 9:2:6); ---The "DC reactor" in the full text is modified to "smoothing reactor": The translation method used in this part is equivalent to the IEC TR60919-3:2016 "Performance of HVDC System Using Grid Commutation Converter" Performance Part 3: Dynamics: The Chinese documents that have a consistent correspondence with the international documents cited in this section are as follows: ---GB/T 3859:1-2013 General requirements for semiconductor converters and power grid commutated converters Part 1-1: Basic requirements Fan (IEC 60146-1-1:2009, MOD); ---GB/T 3859:2-2013 General requirements for semiconductor converters and power grid commutated converters Part 1-2: Application guidelines (IEC /T R60146-1-2:2011,MOD); ---GB/T 3859:3-2013 General requirements for semiconductor converters and power grid commutated converters Part 1-3: Transformers and electricity Reactor (IEC 60146-1-3:1991, MOD); ---GB/T 20996:1-2020 Performance of HVDC systems using grid-commutated converters Part 1: Steady state (IEC TR60919-1:2020, IDT); ---GB/T 20996:2-2020 Performance of HVDC systems using grid-commutated converters Part 2: Faults and operations (IEC TR60919-2:2020, IDT): This section also made the following editorial changes: ---According to IEC TR60919-1:2010, the "Figure 16" in the text is revised to "Figure 18" (see 5:2:2); ---Added the description of the text symbol of the rated power of the i-th generator set in the generator set interaction coefficient expression (See 8:3): This part was proposed by China Electrical Equipment Industry Association: This part is under the jurisdiction of the National Power Electronic System and Equipment Standardization Technical Committee (SAC/TC60): Drafting organizations of this section: China Electric Power Research Institute Co:, Ltd:, China Southern Power Grid Research Institute Co:, Ltd:, Xi'an High Voltage Research Institute Co:, Ltd:, Xi'an Xidian Power System Co:, Ltd:, Global Energy Internet Research Institute Co:, Ltd:, State Grid Economic Technology Research Institute Co:, Ltd:, China Southern Power Grid Co:, Ltd: EHV Transmission Company, Nanjing Nanrui Relay Electric Co:, Ltd:, Xu Ji Electric Co:, Ltd:, Xi'an Power Electronics Technology Research Institute, Xi'an Duanyi Technology Co:, Ltd: The main drafters of this section: Li Xinnian, Li Yan, Zhou Huigao, Ren Junhui, Gao Chong, Fu Chuang, Shen Xiaolin, Lin Shaobo, Yan Xilin, Wang Yongping, Wang Mingxin, Li Yanan, Yang Xiaohui, Hong Bo, Wang Gaoyong, Li Jingliang, Zhang Jinhua, Dong Tianhua, Wu Zhanfeng: The previous versions of the standards replaced by this part are as follows: ---GB /Z 20996:3-2007: High voltage direct current using grid commutated converter System performance part 3: dynamics1 ScopeThis part of GB/T 20996 gives comprehensive guidelines for the dynamic performance of HVDC systems: The dynamic performance in this section refers to its characteristic The characteristic frequency or time zone covers events and phenomena ranging from transient conditions to steady-state conditions: The dynamic performance involved should belong to the steady state Or under transient conditions, the high-voltage DC system at both ends and the connected AC system or its components, such as power plants, AC lines and buses, reactive power sources, etc: The mutual influence between: It is assumed that the high-voltage DC system at both ends adopts a 12-pulse converter unit composed of three-phase bridge wiring (dual circuit), It has two-way power transmission capability, and the converter uses a thyristor valve with gapless metal oxide arrester for insulation coordination as the bridge arm: Diode converter valves are not considered in this section: Although there is no special mention for the multi-terminal HVDC transmission system, many contents in this section are also Suitable for multi-terminal systems: This section only involves power grid commutated converters, including converters with capacitor commutated circuit structures: IEC 60146-1-1, IEC TR60146-1-2 And IEC 60146-1-31) gives the general requirements for power grid commutated semiconductor converters, excluding voltage source converters: 1) IEC 60146-1-3 has been abolished and is covered by IEC 61378 series and IEC /IEEE60076-57-129: 2) The currently valid version IEC TR60919-1:2020: GB/T 20996 consists of three parts: The first part is steady state, the second part is transient, and the third part is dynamic: When the user compiles both ends In the specification of HVDC systems, all three parts should be considered: For each component in the system, pay attention to the difference between system performance specifications and equipment design specifications: This part does not specify equipment regulations Fan and test requirements, but focus on those technical requirements that affect system performance specifications: Different HVDC systems may have many differences Similarities, this section does not discuss this in detail: This part should not be used directly as the technical specifications for specific engineering projects: However, this can be the basis The basis is the preparation of technical specifications for the specific transmission system to meet the actual system requirements: The content involved in this section does not distinguish between users and manufacturers Define job responsibilities:2 Normative referencesThe following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article Pieces: For undated references, the latest version (including all amendments) applies to this document: IEC 60146-1-1 General requirements for semiconductor converters and grid-commutated converters Part 1-1: Basic requirements specification (Semi- conductorconverters-Generalrequirementsandlinecommutatedconverters-Part 1-1:Specification ofbasicrequirements) IEC /T R60146-1-2 General requirements for semiconductor converters and grid-commutated converters Part 1-2: Application guidelines (Semi- conductorconverters-Generalrequirementsandlinecommutatedconverters-Part 1-2:Application guidelines) IEC 60146-1-3 General requirements for semiconductor converters and grid-commutated converters Part 1-3: Transformers and reactors (Semiconductorconverters-Generalrequirementsandlinecommutatedconverters-Part 1-3:Trans- formersandreactors) IEC TR60919-1:20102) Performance of HVDC systems using grid-commutated converters Part 1: Steady state (Per- formanceofhigh-voltagedirectcurrent(HVDC)systemswithline-commutatedconverters-Part 1: 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