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Basic dataStandard ID: GB/T 31464-2022 (GB/T31464-2022)Description (Translated English): The grid operation code Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: F20 Classification of International Standard: 29.240.01 Word Count Estimation: 82,890 Date of Issue: 2022-12-30 Date of Implementation: 2023-07-01 Older Standard (superseded by this standard): GB/T 31464-2015 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 31464-2022: The grid operation code---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.ICS 29.240.01 CCSF20 National Standards of People's Republic of China Replacing GB/T 31464-2015 Grid Operation Guidelines The grid operation code 2023-07-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee table of contentsPreface III Introduction VI 1 Scope 1 2 Normative references 1 3 Terms and Definitions 3 3.1 Base name 3 3.2 Parallel (connected) network part 5 3.3 Operation and control 6 3.4 Security 8 3.5 Market 9 3.6 Other 9 4 Power Grid Operation Requirements for Planning, Design and Construction 10 4.1 Primary part 10 4.2 Secondary part 12 5 Grid connection, networking and access conditions 18 5.1 Grid connection procedure 18 5.2 The technical and operational characteristics of the power grid that should be met 19 5.3 General technical conditions for parallel (connected) grids 20 5.4 Classification and (network) clause 23 6 Grid operation 33 6.1 General 33 6.2 Data and Information Exchange Requirements 33 6.3 Load Forecasting 34 6.4 Equipment maintenance 35 6.5 Power generation balance 37 6.6 Ancillary services 37 6.7 Frequency and voltage control 39 6.8 Electrical load control 40 6.9 Grid operation 41 6.10 System stability and security countermeasures 41 6.11 Hydropower operation 42 6.12 Wind and solar power generation operation 44 6.13 Distributed power generation operation 45 6.14 Operation of electrochemical energy storage power station 45 6.15 DC transmission system operation 45 6.16 Protection relay operation 46 6.17 Power communication operation 47 6.18 Scheduling automation system operation 47 6.19 Network security operation of power monitoring system 48 6.20 Grid dispatching operation in emergency 49 6.21 Accident report and accident information notification 50 6.22 Equipment Performance Test 52 Appendix A (Normative) Data and Information Exchange 53 Appendix B (Normative) Time sequence in the grid connection program 61 Appendix C (Normative) Equipment numbering and naming procedures 62 Appendix D (Normative) Parallel (Internet) Network Debugging Test Items 63 Appendix E (Normative) Basic Data Required for System Calculation 67 Appendix F (Normative) Information Required for Short-Circuit Current Calculation 70 Appendix G (Normative) Materials Required for Electromagnetic Transient Calculation 71 Appendix H (Normative) Information required for power quality 72 Appendix I (Normative) Information required for voltage stability and mid- to long-term process simulation calculations 73 Reference 74forewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. This document replaces GB/T 31464-2015 "Grid Operation Guidelines". Compared with GB/T 31464-2015, except for structural adjustment and editing In addition to sexual changes, the main technical changes are as follows. --- Added "power sales company", "renewable energy", "new energy", "distributed power", "new energy station", "real-time control", "interruptible load Charge", "Electrochemical Energy Storage System", "Connection", "Power System Security", "Voltage Stability", "Frequency Stability", "New Energy Installed Penetration Rate" "New energy power penetration rate", "New energy simultaneous rate", "New energy maximum simultaneous rate", "New energy minimum simultaneous rate", "Power monitoring System", "DC Additional Control", "Network Security", "Network Security Management Platform", "Network Security Monitoring Device", "Power Spot Market" Terms and definitions such as "ancillary services", "electric ancillary services market" and "two completely independent communication channels". Modified the "grid connection" Terms and definitions such as "networking" (see Chapter 3); --- Deleted terms and definitions such as "planned outage" and "unplanned outage" (see 3.3.9 and 3.3.11 of the.2015 edition); --- Increased the relevant requirements that new energy planning should be carried out simultaneously with grid planning [see 4.1.1.3f)]; --- Added new energy planning to consider inertia and dynamic reactive power reserve requirements [see 4.1.2.1b)]; --- Added the requirements for mutual adaptation and coordinated development of AC and DC in power system planning [see 4.1.2.1h)]; --- Added requirements for installed type, scale and layout in power planning [see 4.1.2.1i)]; --- Added the relevant requirements that the power system should coordinate and build sufficient regulation capacity [see 4.1.2.1j)]; ---Increased the grid carrying capacity, local consumption and distributed power power control, forecasting and power generation in distributed power planning. Requirements for pressure and frequency support capability [see 4.1.2.1k)]; --- Increased DC transmission should be compatible with the sending and receiving end system, and the DC short-circuit ratio and multi-infeed DC short-circuit ratio should reach a reasonable level. (see 4.1.2.6); ---Increased primary frequency regulation, rapid voltage regulation, peak regulation capability, inertia/short circuit capacity support capability and voltage/frequency for new energy stations Requirements for tolerance (see 4.1.2.7); ---Increased the short-circuit ratio of multiple stations, broadband oscillation, fast frequency response, frequency and voltage resistance, and network in the design process of new energy stations Safety, power quality assessment and other content requirements (see 4.1.2.8); --- Added the design requirements for large-scale new energy stations connected to the grid through the flexible direct current transmission system (see 4.1.2.9); ---Increased the feasibility study of power system design and large-scale power transmission and transformation projects, large-scale power access systems, and direct current transmission projects During work, the power system stability calculation requirements should be carried out (see 4.1.2.11); --- Increased the design requirements for the network security field of the power monitoring system (see 4.2.1 and 4.2.2); --- Added the design content of relay protection (see 4.2.7.1); --- Increase the design content and design principles of power monitoring system network security (see 4.2.10); --- Added the requirements for the operation and maintenance procedures of the party to be connected to the grid (see 5.3.1); --- Increase the compliance certification requirements of the party to be connected to the grid (see 5.3.2); --- Added synchronous generator sets, new energy stations, electrochemical energy storage power stations, relay protection and safety automatic devices, dispatching automation systems System, network security device, power communication system commissioning test requirements (see 5.3.3); --- Increased the requirements for grid-connected trial operation of various power sources (see 5.3.4); --- Added grid-connected technical requirements for network security of the power monitoring system (see 5.3.8); --- Modified the general performance requirements of generator sets, including the performance of PSS, primary frequency regulation, phase advance capability, AGC, AVC and other network-related equipment requirements (see 5.4.2.3.1, 5.4.2.3.1 of the.2015 edition); ---Modified the grid-connected technical conditions of wind farms and photovoltaic power stations, and added new energy stations' primary frequency regulation, rapid voltage regulation, peak regulation capabilities and inertia capacity, voltage/frequency tolerance, station modeling, power quality assessment/actual measurement, short-circuit ratio analysis, oscillation risk assessment, and access Requirements on the adaptability analysis of the relay protection of the flexible straight station (see 5.4.3.1, 5.4.3.1 and 5.4.3.2 of the.2015 edition); --- Added grid-connected technical requirements for energy storage power stations (see 5.4.3.2); --- Added grid-connected technical requirements for distributed power generation (see 5.4.3.3); ---Modify the grid-connected technical conditions of the DC transmission system, and increase the requirements for carrying out oscillation risk assessment, AC-DC protection coordination and cooperation research, etc. It is proposed that the capacity of DC transmission should match the capacity of the sending and receiving end system, and the DC short-circuit ratio (including multi-infeed DC short-circuit ratio) should reach Reasonable level, the connected system should be equipped with (dynamic) reactive power compensation device when necessary, and the connected AC system should try to avoid section loss of power Insurance requirements (see 5.4.4.2 and 5.4.4.3, 5.4.4.2 and 5.4.4.3 of the.2015 edition); --- Added new energy flexible straight grid system technical conditions (see 5.4.4.4); ---Modified the technical conditions for grid connection of main network direct supply users, adding that main network direct supply users should implement emergency load limit, stable control and centralized switching Load, low-frequency load reduction and low-voltage load reduction measures; put forward the characteristics of harmonics and impact of the main network direct supply user load The impact on the power quality and safety and stability of the connected power system should not exceed the bearing capacity of the system, and it should have certain fault Disturbance tolerance, load regulation and harmonic suppression; clarified the load that will interrupt the load and provide frequency response The load is prioritized in the load-side technical measures to ensure the safe and stable operation of the power system (see 5.4.5.3, 5.4.5.3 of the.2015 edition); --- Added data and information exchange requirements in the grid operation phase (see 6.2); --- Modified the principles that should be followed in the formulation of the maintenance plan, and added factors that should be considered comprehensively when formulating the maintenance plan (see 6.4.2.3, 6.3.2.3 of the.2015 edition); ---Added the requirements that the auxiliary services provided by the approved third-party auxiliary service providers should meet (see 6.6.2.7); ---Modify the means of controlling the frequency of the power grid, adding methods such as calling energy storage, DC additional control (DC modulation and DC emergency control) paragraph (see 6.7.2.4, 6.6.2.5 of the.2015 edition); ---Modified the handling principle of abnormal frequency. When the system frequency is higher than the upper limit of the normal frequency range, the power grid dispatching organization can take Among the measures, the use of energy storage equipment for energy storage, increasing the output of DC or reducing the transmission power of incoming DC, etc.; when the system frequency is lower than When the lower limit of the normal frequency range is reached, the measures that the power grid dispatching agency can take include calling energy storage equipment to generate electricity and reducing the direct output. flow or increase the received DC transmission power, etc. (see 6.7.2.6, 6.6.2.7 of the.2015 edition); --- Modified the means of reactive power and voltage adjustment of the power grid, added the adjustment of DC transmission power or step-down operation, flexible DC adopts reactive power compensation Compensation mode operation and other adjustment means (see 6.7.3.3, 6.6.3.3 of the.2015 edition); ---Modified the principles and requirements of load control, proposing to implement demand response in accordance with the principle of "demand response priority, orderly power consumption guarantee" Responsive transactions, interruptible load management, power limit operation according to the emergency power limit sequence table and the power limit sequence table to ensure the safety of the power system do. After load control is implemented, relevant information shall be disclosed in accordance with relevant regulations (see 6.8.2, 6.7.2 of the.2015 edition); ---Modified the load control means. The safety automatic device is added to shed the load, and the user is guided to actively adjust through the power market incentives Load control means such as electricity load (see 6.8.3, 6.7.3 of the.2015 edition); ---Modified the load control program. Added market-based demand response transactions, implementation of interruptible load management, safety automation Load control procedures such as load shedding (see 6.8.4, 6.7.4 of the.2015 edition); ---Increased the dispatching method and requirements of dispatching instructions, and clarified that dispatching instructions can be dispatched by telephone or networked ordering system. route, and put forward the requirements for issuing dispatching instructions for the two routes (see 6.9.6); ---Modified the principles for the formulation and adjustment of hydropower generation plans, and added factors that should be considered overall when formulating hydropower generation plans, complete Improve the issues that should be considered when adjusting the hydropower generation plan (see 6.11.2, 6.10.2 of the.2015 edition); ---Modified the principles of hydropower operation management, adding that when the ecological dispatch may affect the normal power generation operation of the reservoir, when the emergency environment When pollution incidents, marine accidents, geological disasters, etc. affect the normal power generation operation of the reservoir, the requirements for hydropower operation management (see 6.11.4, 6.10.4 of the.2015 edition); --- Increased the operating requirements of distributed power (see 6.13); --- Added operating requirements for electrochemical energy storage power plants (see 6.14); ---Modify the operation mode of the DC transmission system. In the operation wiring of the DC transmission system, add pseudo-bipolar, and other through-element cut-off Reasonable wiring mode obtained by replacement; in the operation mode, add the dynamic voltage adjustment mode; the active power control mode of the converter station In, add methods such as constant DC voltage, fixed island frequency and voltage amplitude (see 6.15.2, 6.13.2 of the.2015 edition); ---Modify the operation requirements of relay protection, increase the overall requirements for relay protection operation, modify the operation management and overall requirements of relay protection Calculation and coordination and other related requirements (see 6.16, 6.12 of the.2015 edition); --- Increased the requirements for the safe operation of the power monitoring system network (see 6.19); --- Added the requirement that the power grid dispatching organization set up the main and backup dispatching places and dispatching personnel, and regularly carry out the main and standby dispatching switching drills (see 6.20.3); --- Added the requirements for coordinated handling of grid faults (see 6.20.6); ---Modify the content of equipment performance test, and increase the test content of new energy station and energy storage power station equipment performance (see 6.22.2). Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Electricity Council. This document is under the jurisdiction of the National Grid Operation and Control Standardization Technical Committee (SAC/TC446). This document is drafted by. State Grid Corporation of China, National Energy Administration, China Southern Power Grid Co., Ltd., China Huaneng Group Co., Ltd. Company, State Energy Investment Group Co., Ltd., State Power Investment Group Co., Ltd., China Datang Corporation, China Power Scientific Research Institute Co., Ltd., State Grid Electric Power Research Institute Co., Ltd., China Electric Power Engineering Consulting Group Northwest Electric Power Design Institute Co., Ltd. Division, North China Electric Power Research Institute Co., Ltd. The main drafters of this document. Li Mingjie, Leng Xiwu, Xu Tao, Chen Guoping, Liu Yingshang, Dong Yu, Zhao Zigang, Ji Ning, Su Yinsheng, Zhang Zhigang, Sun Weizhen, Zhang Xiao, Zheng Xiaoyu, Zhang Jianyun, Niu Shuanbao, Huang Haiyu, Zhang Liang, He Jingbo, Lu Pengfei, Liu Jinbo, Zhang Bei, Pei Pei, Yang Yinguo, Li Ling, He Fengjun, Zhang Jian, Sun Dayan, Shi Min, Ma Ke, Huo Chao, Yang Bin, Li Yong, Wang Bin, Pi Junbo, Wang Shen, Wei Zun, Wang Chunming, Jiao Jianlin, Xu Lizhong, Chen Gang, Wang Gang, Liu Xinyu, Fan Xiaowei, Wang Yong, Tu Jingzhe, Liu Jianqin, Faye Wong, Liu Ying, Li Xuan, Wang Aihua, Zhang Hao, Cai Qiuna, Shang Xuewei, He Ming, Shao Weiping, Ding Ping, Huang Yuehui, Xie Xiaodi, Wu Shuangxi, Xin Yaozhong, Huang Xuenong, Lu Yuechun, Tang Yong, Ren Zhigang, Duan Laiyue, Shu Zhihuai, Chang Qing, Wang Delin, Pei Zheyi, Guo Jiancheng, Liu Chun, Zhou Hongyang, Han Gang.IntroductionThe regulatory document "Grid Operation Rules" issued by the former State Electricity Regulatory Commission focuses on management and responsibilities, and clarifies the power grid enterprises and The basic responsibilities, rights and obligations of its dispatching agencies and grid users in all relevant stages of grid operation. This document focuses on technical standards and The working procedures clearly define the technical conditions required for the safe and stable operation of the power grid during the planning, design and construction stages of the power system, and define It clarifies the basic technical requirements and work procedures that power grid companies and power generation companies must meet each other, and defines the requirements for power grid companies, power generation companies, and power users. The basic technical requirements and working procedures that are met in the grid connection and grid operation to ensure the safe and stable operation of the power system, so that our country The normal order of social and economic operation, industrial and agricultural production and people's life is guaranteed by reliable power. Grid Operation Guidelines1 ScopeThis document specifies the basic technical requirements and basic principles for grid operation and control. This document is applicable to power grid enterprises, power generation enterprises, power users, and related planning and design, construction, test commissioning, research and development Power grid planning, design, grid connection, operation and other work participated by other units and relevant management departments.2 Normative referencesThe contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 755-2019 Rating and performance of rotating electrical machines GB/T 2900.49 Electrotechnical Terminology Power System Protection GB/T 2900.50 Electrotechnical terms General terms for power generation, transmission and distribution GB/T 2900.52 Electrotechnical terms for power generation, power transmission and distribution power generation GB/T 2900.57 Electrotechnical Terminology Power Generation, Transmission and Distribution Operation GB/T 2900.58 Electrotechnical Terms Generation, Transmission and Di......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 31464-2022_English be delivered?Answer: Upon your order, we will start to translate GB/T 31464-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 9 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 31464-2022_English with my colleagues?Answer: Yes. 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