GB 38755-2019 English PDFUS$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 38755-2019: Code on security and stability for power system Status: Valid
Basic dataStandard ID: GB 38755-2019 (GB38755-2019)Description (Translated English): Code on security and stability for power system Sector / Industry: National Standard Classification of Chinese Standard: F21 Classification of International Standard: 29.020 Word Count Estimation: 18,193 Date of Issue: 2019-12-31 Date of Implementation: 2020-07-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB 38755-2019: Code on security and stability for power system---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.Code on security and stability for power system ICS 29.020 F21 National Standards of People's Republic of China Replaces DL755-2001 Safety and Stability Guidelines for Power Systems 2019-12-31 release 2020-07-01 implementation State Administration of Market Supervision Published by the National Standardization Administration ContentsForeword III Introduction IV 1 Scope 1 2 Terms and definitions 1 3 Basic requirements to ensure the safe and stable operation of the power system 3 3.1 General requirements 3 3.2 Grid Structure 4 3.3 Power supply structure 5 3.4 Reactive power balance and compensation 5 3.5 Network Source Coordination 6 3.6 Preventing Power System Collapses 6 3.7 Recovery after a complete shutdown of the power system 6 4 Safety and stability standards for power systems 7 4.1 Static Stability Reserve Standards for Power Systems 7 4.2 Safety and stability standards for the ability of power systems to withstand large disturbances 7 4.3 Special case requirements 8 5 Power system safety and stability calculation analysis 8 5.1 Tasks and Requirements of Safe and Stable Computing Analysis 8 5.2 Static safety analysis of power system 9 5.3 Calculation and Analysis of Static Stability of Power System 9 5.4 Calculation and Analysis of Power System Transient Power Angle Stability 10 5.5 Calculation and Analysis of Dynamic Power Angle Stability in Power System 10 5.6 Calculation and Analysis of Power System Voltage Stability 10 5.7 Calculation and Analysis of Power System Frequency Stability 11 5.8 Calculation and analysis of short-circuit current in power system 11 5.9 Calculation and Analysis of the Synchronous Oscillation or Super-Synchronous Oscillation 11 6 Power System Safety and Stability Work Management 11 Appendix A (Normative) Classification of Power System Stability 13ForewordAll technical contents of this standard are mandatory. This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces DL755-2001 "Guidelines for Safety and Stability of Power Systems". This standard is proposed and managed by the National Energy Administration. The previous versions of the standards replaced by this standard are. --- DL755-2001.IntroductionIn 1981, at the beginning of the comprehensive construction of the national economic infrastructure at the time of the reform and opening up, China's power grid stability and destruction accidents were frequent. Situation and the bias of “heavy power generation but light power supply” in the development of the power grid, the former Ministry of Electric Power Industry formulated the first edition of the “Guidelines for the Safety and Stability of Power Systems” [(81) Dianzi Zi No. 109], for the first time, standardized guidelines for the correct handling of power system safety and economy, reasonable construction and grid operation then. After the promulgation and implementation of the `` Guidelines for the Safety and Stability of Electric Power Systems '', China's power system safety and stability level has reached a new level, and the number of stable damages has been stabilized. It rapidly decreased from 19 times per year between 1970 and 1980 to 0.2 times per year during the Ninth Five-Year Plan period. In.2001, according to the needs of the comprehensive development stage of the 500kV inter-provincial interconnection in the national economy and the power industry, the safety and stability standards were appropriately raised. In addition, new requirements have been put forward in the areas of stable calculation and stable management, and they have become a mandatory standard for the industry. DL755-2001 《Power System Security After the promulgation of the Stability Guidelines, it has further promoted the healthy development of regional networking, and the reliability of power supply has been continuously improved. In the U.S., Canada, Brazil, At the same time that large-scale power outages have occurred in India and other countries, the rapid development of China's power grid has basically eliminated the stability of the power system. And large-scale power outages. According to the actual development of China's power system, the National Energy Administration commissioned the National Technical Committee for Standardization of Grid Operation and Control to organize grid companies. Industry, power generation enterprises, power users, power planning and survey design, scientific research and other units, summarized DL755-2001 This standard was developed on the basis of the experience of the Guidelines.This standard focuses on and solves the problem of large-scale continuous development of new energy with the development of UHV power grids. Grid-connected, UHV AC and DC power grids are gradually formed, the system capacity continues to expand, new energy installations continue to increase, and the grid pattern and power supply structure occur Major changes, profound changes in the characteristics of the power grid, and new challenges to the safe and stable operation of the power system. The development and publication of this standard will Strongly support the new requirements of the national energy strategic transformation on the power system, ensure the safe, stable, and economic operation of the power grid and grid-connected power plants, and promote The normal order of progress in China's social and economic development, industrial and agricultural production, and people's lives is guaranteed by reliable electricity. Safety and Stability Guidelines for Power Systems1 ScopeThis standard specifies the basic requirements for ensuring the safe and stable operation of the power system, the safety and stability standards for the power system, and the safety and stability of the power system. Computational analysis, and safe and stable work management of power systems. This standard applies to power systems with a voltage level of 220kV and above. Power systems below 220kV (including distributed power) Reference execution.2 terms and definitionsThe following terms and definitions apply to this document. 2.1 Power system security and safety analysis The ability of the power system to withstand disturbances (such as sudden loss of power system components, or short-circuit faults) during operation. Note 1. Characterized by two characteristics. a) the power system can withstand transient processes caused by disturbances and transition to an acceptable operating condition; b) Under the new operating conditions, various constraints are met. Note 2. Security analysis is divided into static security analysis and dynamic security analysis. The static safety analysis assumes that the power system is directly transferred from static before disturbance to disturbance The other static state, which does not consider the intermediate transient process, is used to check whether various constraints are satisfied after the disturbance. Research on Dynamic Security Analysis The ability of the power system to maintain stability during the transition from a static state before disturbance to another static state after disturbance. 2.2 Power systemstability The ability of the power system to maintain stable operation after being disturbed. Note. Power system stability can be divided into three categories. power angle stability, voltage stability, and frequency stability. See Appendix A for specific classification. 2.2.1 Power angle stability The ability of synchronous generators in synchronous interconnected power systems to maintain synchronous operation after being disturbed. Note. The power angle instability is caused by insufficient synchronous torque or damping torque. Insufficient synchronous torque results in non-periodic instability, while insufficient damping torque causes oscillation instability. Power angle stability can be further divided into static power angle stability, transient power angle stability, and dynamic power angle stability. 2.2.1.1 Steady-staterotoranglestability The ability of the power system to automatically return to the initial operating state after the power system is subjected to small disturbances without aperiodic step loss of power angle. 2.2.1.2 Transient work angle stability After the power system is greatly disturbed, each synchronous generator maintains synchronous operation and transitions to the new or restored to the original steady-state operation mode. ability. Note. Usually refers to keeping the power angle of the first and second swings without losing step. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 38755-2019_English be delivered?Answer: Upon your order, we will start to translate GB 38755-2019_English as soon as possible, and keep you informed of the progress. 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