DL/T 5223-2005 英文版 高压直流换流站设计技术规定

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ICS 27.100
P 62
Record No. J435—2005
Electric Power Industry Standard of the People's Republic of China
P DL / T 5223 — 2005
Technical Rule for Designing
HVDC Converter Station
Issue Date: February 14, 2005 implementation Date: June 1, 2005
Issued by the National Development and Reform Commission of the People's Republic of China

DL/T 5223-2005,换流站,英文版,设计技术,高压,高压直流换流站,DL/T 5223-2005 英文版 高压直流换流站设计技术规定

1 Scope
This rule specifies the selection of converter station site, performance requirements for DC transmission systems, electrical design of converter stations, selection of main equipment, control and protection design, communication design and auxiliary system design.
This rule is applicable to the design of converter stations in long distance monopolar/bipole HVDC transmission systems, and may provide reference for the design of back-to-back DC converter stations.

2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this rule. For dated references, subsequent amendments (excluding the contents of errata) to, or revision of, any of these publications do not apply.
However, parties to agreements based on this code are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 4387 Safety Regulation for Transportation in Plants of Industrial Enterprises
GB 14285 Technical Code for Relaying Protection and Security Automatic Equipment
GB 50009 Load Code for the Design of Building Structures
GB 50010 Code for Design of Concrete Structures
GB 50011 Code for Seismic Design of Buildings
GB 50017 Code for Design of Steel Structures
GB 50019 Code for Design of Heating Ventilation and Air Conditioning
GB 50062 Design Code for Relaying Protection and Automatic Device of Electric Power Installation
GB 50074 Code for Design of Oil Depot
GB 50116 Code for Design of Automatic Fire Alarm System
GB 50217 Code for Design of Cables Electric Work
GB 50229 Code for Fire-Protection Design Power Plant and Substation

GB 50260 Code for Design of Seismic of Electrical Installations
GBJ 16 Code of Design on Building Fire Protection and Prevention
DL/T 605 Guide for Insulation Coordination of HVDC Convertor Stations
DL/T 620 Overvoltage Protection and Insulation Coordination
for AC Electrical Installations
DL/T 621 Grounding for AC Electrical Installations
DL/T 5044 Technical Code for Designing DC System of Power Projects
DL/T 5056 Technical Code of General Plan Design for Substation
DL/T 5136—2001 Technical Code for Designing of Electrical Secondary Wiring in Fossil Fuel Power Plants and Substations
DL/T 5137 Technical Code for Designing Electrical Measuring and Energy Metering Device
DL/T 5149 Technical Code for Designing Computerized Monitoring and Control System of 220 kV-500 kV Substations
DL/T 5155 Technical Code for Designing AC Station Service of 220 kV-500 kV Substation
DL/T 5218 Technical Code for Designing 220 kV-500 kV Substation
DL/T 5225 Technical Rule of Communication Design for 220 kV-500 kV Substation
SDJ 5 Technical Code for Designing High Voltage Electrical Switchgear
SDGJ 14 Design Technical Rule for Selecting Conductor and Electrical Equipment
IEC 60071—2 Insulation Co-ordination - Part 2: Application Guide

IEC 60099—4 Surge Arresters - Part 4: Metal-Oxide Surge Arresters Without Gaps for AC Systems
IEC 60633: 1998 Terminology for High-Voltage Direct Current (HVDC) Transmission
IEC 61803: 1999 Determination of Power Losses in HighVoltage Direct Current (HVDC) Converter Stations CIGRE 3314 Application Guide for Metal Oxide Surge Arresters without Gaps in HVDC Converter Stations (WG05 report) Decree No. 30 issued by the State Economic and Trade Commission Regulations for Safety Protection of Computerized Monitoring and Control System and Dispatching Data Network in Power Grids and Power Plants

3 Terms and Definitions
The following terms and definitions apply to this rule.
3.1 High Voltage Direct Current (HVDC) System and Converter Station
3.1.1
HVDC system
Electrical power system which transfers energy in the form of high voltage direct current between two or more AC buses.
3.1.2
Two-terminal HVDC transmission system
HVDC transmission system consisting of two converter stations and the connecting HVDC transmission lines (see Figure 3.1.2).

3.1.3
Back-to-back DC coupling system
A type of electric power facility which connects two
asynchronous AC power systems through AC-DC-AC conversion without DC transmission lines, also called Asynchronous Interconnection Station. If the connected two AC power systems have different rated frequencies, the facility is also called frequency conversion station. In a back-to-back coupling system, two sets of converter equipment for rectifier and inverter are installed in one station, their DC sides are connected each other via smoothing reactor(s), and their AC sides are connected to different AC systems separately, thus the asynchronous interconnection and power exchange between two asynchronous AC power systems are realized.
3.1.4
HVDC system pole (pole)
Part of an HVDC system consisting of all the equipment in both converter stations of a two-terminal HVDC transmission system and the interconnecting transmission lines, if any, which during normal operation exhibit a common direct voltage polarity with respect to earth (see Figure 3.1.2).
3.1.5
Monopolar (unipolar) HVDC system
HVDC system with only one pole.

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