This standard specifies the basic technical requirements and basic principles that shall be followed by grid operation.
This standard is applicable to all the grid enterprises, power generation enterprises and power customers participating in grid operation as well as the planning and design, development and construction, test and debugging as well as research and development organizations related to grid operation and the relevant management departments.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties who enter into agreement according to this standard are encouraged to research whether the latest editions of these documents are applied or not. For undated reference, its latest edition of the normative document is applicable to this standard.
GB 755-2000 "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 - Generation"
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 - Substations"
GB/T 7064 "Requirements for Turbine Type Synchronous Machine"
GB/T 7409.1~7409.3 "Excitation Systems for Synchronous 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 "General Specification for Remote Terminal Unit"
GB 14285 "Technical Code for Relaying Protection and Security Automatic Equipment"
GB/T 14429 "Telecontrol Equipment and Systems- Glossary"
GB/T 14549 "Quality of Electric Energy Supply-Harmonics in Public Supply Network"
GB/T 15148 "General Specification for Load Control Systems"
GB/T 15149 "Performance and Testing of Teleprotection Equipment of Power Systems"
GB/T 15153.1 "Telecontrol Equipment and Systems - Part 2: Operating Conditions - Section 1: Power Supply and Electromagnetic Compatibility"
GB/T 15543 "Quality of Electric Energy Supply - Admissible Three-phase Voltage Unbalance Factor"
GB/T 15945 "Power Quality-Frequency Deviation for Power System"
GB 17621 "Specification of Reservoir Operation for Large and Medium-scale Hydropower Stations"
GB 17859 "Classified Criteria for Security Protection of Computer Information System"
GB/Z 20996.1-2007 "Performance of High-voltage Direct Current (HVDC) Systems-Part 1: Steady-state Conditions" (idt IEC/TR60919-1: 1991)
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 50293 "Code for Urban Electric Power Planning"
DL 428 "Rules of Automatic Low-frequency Technology for Electric Power System"
DL 436 "Technical Guide for HVDC Overhead Transmission Lines"
DL 437 "Technical Guidelines for High Voltage Direct Current Buried Electrode"
DL 497 "Management Code for Automatic Low-frequency Load Shedding of Power Systems"
DL 516 "Code for Operation and Administration of Power Dispatching Automation System"
DL/T 448 "Technical Administrative Code of Electric Energy Metering"
DL/T 544 "Rules of Management of Communication in Electric Power System"
DL/T 545 "Rules of Operational Management of Microwave Communication in Electric Power System"
DL/T 545 "Rules of Operational Management of Carrier Communication in Electric Power System"
DL/T 547 "Rules of Operational Management of fiber optic communication in Electric Power System"
DL/T 548 "Rules of Operational Management of Lightning Protection at Signal Stations of Electric Power System"
DL/T 559 "Setting Guide for 220kV~500kV Power System Protection Equipment"
DL/T 583 "Specification for Static Commutated Excitation Systems and Devices for Large and Medium Hydraulic Generators"
DL/T 584 "Code for Setting of 3kV~110kV Relaying Protection Equipment"
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 650 "Specification for Potential Source Static Exciter Systems for Large Turbine Generators"
DL/T 684 "Guide of Calculating Settings of Relay Protection for Large Generator and Transformer"
DL/T 687 "General Specification for Prevent Electric Mal-operation Device with Computer"
DL/Z 713 "Immunity Requirement for Protection and Control Equipment in 500kV Substation"
DL/T 723 "Technical Guide for Electric Power System Security and Stability Control"
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 755 "Guide on Security and Stability for Power System"
DL/T 769 "Technical Guide for Microprocessor-based Protection Equipment of Power System"
DL/T 842 "Ordering Specification for Low-voltage Shunt Capacitor Installation"
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 5147 "Designing Technical Rules for Security and Automaticity Equipment of Power System"
DLGJ 107 "Technical Code for Designing Computerized Monitoring and Control System of Substations"
SD 131 "Technical Guidelines for Power Systems"
SD 325 "Technical Guide for Voltage and Reactive Power of Power System"
SDGJ 60 "Regulation for Content and Depth of Power System Design"
SDGJ 84 "Design Regulations of Content and Profundity for Hydro and Fossil Fuel Power Plant Connecting to the System"
SDJ 161 "Technical Code of Design for the Electric Power System"
NENGYUANDIAN (1993) No.228 "The Code of Planning and Design of Urban Electric Network"
DIANJI (1997) No.730 "Preparation Principles for Power Development Planning"
DIANJI (1997)No.580 "Regulation for Content and Depth of Feasibility Study on Power System Interconnection"
No.30 Order of State Economic and Trade commission "Regulation for Safety Protection of Computer Monitoring System and Dispatching Data Network of Power Grid and Plant"
GUODIANGUI (1999)No.521 "Regulation for Content and Depth of Preliminary Feasibility Study on Power System Interconnection"
No.4 Order of State Electricity Regulatory Commission (SERC) "Interim Provisions on the Investigation of Electric Power Generation Accidents"
No.5 Order of State Electricity Regulatory Commission (SERC) "Rules for Electricity Secondary System Safety Protection"
No.10 Order of State Electricity Regulatory Commission (SERC) "Basic Operating Rules for the Electric Power Market"
No.11 Order of State Electricity Regulatory Commission (SERC) "Measures for the Supervision of Electric Power Market"
No.22 Order of State Electricity Regulatory Commission (SERC) "Rules on Operation of Power Grids"
3 Terms and Definitions
For the purpose of this standard, 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 as well as the following ones are apply.
3.1 Basic Names
3.1.1
Power System
Power system is an entirety composed of the power generation, supply (transmission, transformation and distribution) and electric facilities as well as, for ensuring their normal operation, the relaying protection and automatic safety devices, metering devices, electric power communication facilities and automation facilities, etc.
3.1.2
Power System Operator
It is responsible for organizing, commanding, directing and coordinating the grid operation and is responsible for the operating organizations of electricity market.
3.1.3
Electricity Regulatory Institution
The State Electricity Regulatory Commission and its detached offices.
3.1.4
Grid Enterprise
The electric power enterprises owning, managing or operating the power grid.
3.1.5
User of Grid
The units, like the power generation enterprises (including self-supply power plants) completing the power generation or consumption through power grid as well as the bulk grid customers.
3.1.6
Power Generation Enterprise
The power generation companies connected into the grid operation (owning one or several power plants), or the electric power enterprises owning power plants.
3.1.7
Customer
The units or individuals consuming electric energy through the power grid.
3.1.8
Bulk Grid Customers
The customers directly signing the Power Purchase Agreement with the grid enterprises above provincial level (municipality and autonomous region) or the customers directly purchasing electric power from the power generation enterprises through the power grid.
3.2 Connection (Interconnection) Part
3.2.1
Interconnection
The physical coupling among power grids.
3.2.2
Connection
The physical coupling between the power plant (machine unit) and the power grid or between the electric equipment of power customer and the power grid.
3.2.3
Entry Point
The coupling point at which the power plant (machine unit) is connected into the power grid or the coupling point of the electric equipment of power customer with the power grid.
3.2.4
The First Connection Day
The first synchronous coupling date of the generator unit and power grid, as agreed by the grid enterprise and the intended connection party.
3.2.5
Connection Application
The written application document submitted by the intended connection party to the grid enterprise for the purpose of requiring connecting its equipment with the power grid.
3.2.6
Area Control Error (ACE)
Generally, the evaluation standard of the control performance of (ACE) Area Control Error adopts the A1 and A2 or CPS1 and CPS2.
