1 Scope
This standard specifies basic technical requirements and basic principles which shall be observed in the operation of power grid.
This standard is applicable to all the power grid enterprises, power generation enterprises and electric power customers as parts of power grid operation, and relevant units for planning & design, construction, test commissioning and research and development as well as relevant management departments.
2 Normative References
The following documents are essential for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB 755-2008 Rotating Electrical Machines-Rating and Performance
GB/T 2900.49 Electrotechnical Terminology - Power System Protection
GB/T 2900.50 Electrotechnical Terminology - Generation Transmission and Distribution of Electricity - General
GB/T 2900.52 Electrotechnical Terminology - Generation Transmission and Distribution of Electricity - General
GB/T 2900.57 Electrotechnical Terminology - Generation Transmission and Distribution of Electricity - Operation
GB/T 2900.58 Electrotechnical Terminology - Generation Transmission and Distribution of Electricity - Power System Planning and Management
GB/T 2900.59 Electrotechnical Terminology-Generation Transmission and Distribution of Electricity - Substation
GB/T 7064 Specific Requirements for Cylindrical Rotor Synchronous Machines
GB/T 7409.1~7409.3 Excitation Systems for Synchronous Electrical Machines
GB/T 7894 Fundamental Technical Specifications for Hydro Generators
GB/T 12325 Power Quality - Deviation of Supply Voltage
GB/T 12326 Power Quality - Voltage Fluctuation and Flicker
GB/T 13498 Terminology for High-Voltage Direct Current (HVDC) Transmission
GB/T 13729 Remote Terminal Unit Equipment
GB/T 14285 Technical Code for Relaying Protection and Security Automatic Equipment
GB/T 14549 Quality of Electric Energy Supply - Harmonics in Public Supply Network
GB/T 15148 Technical Specification of Power Load Management System
GB/T 15153.1 Telecontrol Equipment and Systems Part 2: Operating Conditions Section 1: Power Supply and Electromagnetic Compatibility
GB/T 15543 Power Quality - Three-phase Voltage Unbalance
GB/T 15945 Power Quality - Frequency Deviation for Power System
GB 17621 Specification of Reservoir Operation for Large and Medium-Scale Hydropower Stations
GB/T 19963 Technical Rule for Connecting Wind Farm to Power System
GB/T 19964 Technical Rule for Connecting PV Power Station to Electric Power Systems
GB/Z 14429-2005 Telecontrol Equipment and Systems - Part 1: General Considerations - Section 3: Glossary
GB/Z 20996.1-2007 Performance of High-Voltage Direct Current (HVDC) Systems - Part 1: Steady-State Conditions (idt IEC/TR 60919-1: 1998)
GB/Z 20996.2-2007 Performance of High-Voltage Direct Current(HVDC) Systems - Part 2: Faults and Switching (idt IEC/TR 60919-2: 1991)
GB/Z 20996.3—2007 Performance of High-Voltage Direct Current (HVDC) Systems - Part 3: Dynamic Conditions (idt IEC/TR 60919-3: 1999)
GB/T 22239 Information Security Technology - Baseline for Classified Protection of Information System Security
GB/T 26399 Technical Guide for Electric Power System Security and Stability Control
GB/T 50293 Code for Urban Electric Power Planning
DL 428 Technical Requirements for Automatic Under-Frequency Load-Shedding of Power System
DL 436 Technical Guide for HVDC Overhead Transmission Lines
DL/T 437 Technical Guide for DC High Voltage Earthing Electrode
DL 497 Work Management Specification for Automatic Under-Frequency Load-Shedding of Power System
DL 755 Guide on Security and Stability for Power System
DL/T 516 Code for Operation and Administration of Power Dispatching Automation System
DL/T 544 Code for Communication and Management of Power System
DL/T 545 Codes for Operation and Maintenance of Power System Microwave Communication
DL/T 546 Code for Operation and Management of Power System Carrier Communication
DL/T 547 Code for Operation and Management of Optical Fiber Communication in Power System
DL/T 548 Overvoltage Protection Code for Communication Station of Power System
DL/T 559 Setting Guide for 220kV-750kV Power System Protections
DL/T 583 Specification for Static Rectified Excitation Systems and Devices for Large and Medium Hydraulic Generators
DL/T 584 Setting Guide for 3kV-110kV Power System Protections
DL/T 598 The Technical Specifications for Automatic Exchange Network of Electric Power System Communication
DL/T 614 Multifunction Electricity Metering Equipment (A.C.)
DL/T 623 Evaluation Rules of Protection Equipment and Power System Stability Control Devices
DL/T 684 Guide of Calculating Settings of Relay Protection for Large Generator and Transformer
DL/T 687 General Specification for Preventing Electric Mal-Operation System with Computer
DL/Z 713 Immunity Requirement for Protection and Control Equipment in 500kV Substation
DL/T 730 Specifications for Imported Equipment of Hydro-Generators and Generator-Motors
DL/T 741 Operating Code for Overhead Transmission Line
DL/T 751 Code for Hydraulic Turbine Generator
DL/T 769 Technical Guide for Microprocessor-Based Protection Equipment of Power System
DL/T 843 Specification for Excitation System for Large Turbine Generators
DL/T 970 Guide for Abnormal and Special Operations and Maintenances of Large Turbo-Generators
DL/T 5131 The Rural Electric Network Construct and Reconstruct Technical Guide
DL/T 5137 Technical Code for Designing Electrical Measuring and Energy Metering Device
DL/T 5 147 Designing Technical Rules for Security and Stability Equipment of Power System
DL/T 5429 Technical Code of Design for the Electric Power System
DL/T 5439 Design Regulations of Content and Profundity for Hydro and Fossil Fuel Power Plant Connecting to the System
DL/T 5444 Regulation of Content and Profundity for Power System Design
SD 131 Technical Guide for Power System
SD 325 Technical Guide for Voltage and Reactive Power of Power System
No. 5 Decreed of the State Electricity Regulatory Commission, 2005, Provisions for Power Secondary System Safety Protection
Guo Neng Xin Neng [2010] No. 433 of National Energy Administration, Tentative Method for Detection and Management of Grid Connection of Wind Turbine Unit
Guo Neng Xin Neng [2011] No. 177 of National Energy Administration, Tentative Method for Management of Wind Farm Power Forecast and Prediction
Guo Neng Xin Neng [2011] No. 182 of National Energy Administration, Notification of National Energy Administration regarding Reinforcement of Grid-Connected Operation Management on Wind Farm
3 Terms and Definitions
For the purposes of this document, the terms and definitions established in GB/T 2900.49, GB/T 2900.50, GB/T 2900.52, GB/T 2900.57, GB/T 2900.58, GB/T 2900.59, GB/T 13498 and GB/T 14429 and the following ones apply.
3.1 General Names
3.1.1
Power system
An integral system which consists of power generation, supply (transmission, transformation and distribution) and utilization facilities as well as relay protection, automatic safety device, measuring device, dispatching automation and electric power communication to ensure its normal operation.
3.1.2
Power system operator
An entity which is responsible for organization, command, instruction and coordination of power grid operation and for the operation of power market.
3.1.3
Electricity regulatory institution
The State Electricity Regulatory Commission and its resident agencies.
3.1.4
Grid enterprise
Power enterprises that possess, operate and run the power grid.
3.1.5
User of grid
Power generation enterprises, including self-supply power plant that complete power generation or power consumption by power grid and the bulk grid consumers.
3.1.6
Power generation enterprise
Power generation company connected to the power grid (in possession of one or more power plants) or the power enterprises in position of power plants.
3.1.7
Power plant
Power plant (field and station), which is connected to the power grid and burns the energies of firepower (fire coal, oil and gas and biomass), water power, nuclear, wind force, solar power and ocean energy.
Foreword I
Introduction II
1 Scope
2 Normative References
3 Terms and Definitions
3.1 General Names
3.2 Connection (Interconnection) Part
3.3 Operation and Control
3.4 Safety
3.5 Others
4 Requirements of Grid Operation at Planning, Design and Construction Stages
4.1 Primary Part
4.2 Secondary Part
5 Connection, Interconnection and Access Conditions
5.1 Connection Procedures
5.2 Technical Characteristic and Operating Characteristic of Grid
5.3 General Technical Conditions for Connection (Interconnection)
5.4 Classification Connection (Interconnection) Provisions
6 Grid Operation
6.1 General Rules
6.2 Load Prediction
6.3 Equipment Maintenance
6.4 Balance Between Power Supply and Demand
6.5 Auxiliary Services
6.6 Frequency and Voltage Control
6.7 Load Control
6.8 Grid Operation
6.9 System Stabilization and Safety Countermeasure
6.10 Hydropower Operation
6.11 Wind Power and Photovoltaic Power Generation Operation
6.12 Relay Protection Operation
6.13 DC Transmission System Operation
6.14 Electric Power Communication Operation
6.15 Operation of Dispatching Automation System
6.16 Power Grid Dispatching Operation in Emergency Situation
6.17 Accident Report and Accident Information Notification
6.18 System Test
6.19 Equipment Performance Test
Appendix A (Informative) Data and Information Exchange
Appendix B (Normative) Connection (interconnection) Debugging Test Items
Appendix C (Normative) Equipment Numbering and Naming Programs
Appendix D (Informative) Necessary Basic Data for System Calculation
Appendix E (Informative) Necessary Information for Short-circuit Current Calculation
Appendix F (Informative) Necessary Information for Electromagnetic Transient Calculation
Appendix G (Informative) Necessary Information for Power Quality
Appendix H (Informative) Necessary Information for Simulating Calculation of Voltage Stability and Mid- and Long-term Dynamic Process
Appendix I (Informative) Time Sequence in Grid Connection Program
Bibliography
