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GB/T 44659.3-2024 English PDF

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GB/T 44659.3-2024: Short-circuit current calculation of renewable energy power generation stations and connection systems - Part 3: Energy storage station
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GB/T 44659.3-2024English469 Add to Cart 4 days [Need to translate] Short-circuit current calculation of renewable energy power generation stations and connection systems - Part 3: Energy storage station Valid GB/T 44659.3-2024

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Basic data

Standard ID GB/T 44659.3-2024 (GB/T44659.3-2024)
Description (Translated English) Short-circuit current calculation of renewable energy power generation stations and connection systems - Part 3: Energy storage station
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard F20
Classification of International Standard 29.240.20
Word Count Estimation 23,290
Date of Issue 2024-10-26
Date of Implementation 2025-05-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 44659.3-2024: Short-circuit current calculation of renewable energy power generation stations and connection systems - Part 3: Energy storage station


---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT44659.3-2024
ICS 29.240.20 CCSF20 National Standard of the People's Republic of China Short-circuit current calculation of new energy stations and access systems Part 3.Energy Storage Power Station Released on October 26, 2024 Implementation on May 1, 2025 State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms, definitions and symbols 1 3.1 Terms and Definitions 1 3.2 Symbol 1 4 General Requirements 2 5 Computational Model 3 5.1 General requirements 3 5.2 Energy Storage System 3 5.3 Energy Storage Power Station Equivalent Model 5 5.4 Power system with multiple energy storage stations connected 6 Calculation Method 6 6.1 Balanced Short Circuit 6 6.2 Unbalanced Short Circuit 7 6.3 Calculation Example 9 Appendix A (Informative) Controlled Current Source Model Iterative Solution Process 10 Appendix B (Informative) Example 11 Preface This 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 is part 3 of GB/T 44659 "Calculation of short-circuit current of new energy stations and access systems". GB/T 44659 has been published. The following parts. --- Part 1.Wind power generation; --- Part 2.Photovoltaic power generation; --- Part 3.Energy storage power station. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Electricity Council. This document is under the jurisdiction of the National Technical Committee for Standardization of Short-Circuit Current Calculation (SAC/TC424). This document was drafted by. China Electric Power Research Institute Co., Ltd., State Grid Corporation of China, Tianjin University, State Grid Corporation of China East China Branch, North China Electric Power University, Guangdong Power Grid Co., Ltd., State Grid Henan Electric Power Company Economic and Technical Research Institute, State Grid Fujian Electric Power Company Electric Power Research Institute of State Grid Corporation of China, Electric Power Research Institute of Guangxi Power Grid Co., Ltd., Electric Power Research Institute of State Grid Ningxia Electric Power Co., Ltd. Research Institute, Guangdong New Energy Storage National Research Institute Co., Ltd. The main drafters of this document are. Guo Qiang, Huo Qidi, He Jingbo, Li Yalou, Zhang Yantao, Tang Xiaojun, Tang Yong, Ma Shiying, Zhou Peipeng, Sun Huadong, Xu Wenjia, Zhu Shaoxuan, Wang Hongfu, Zhang Yuhong, Li Bin, Wang Qian, Li Jianhua, Wang Meng, Wang Shen, Dai Hanyang, Guo Tao, Liang Haiping, Liu He, Yang Yinguo, Chen Dezhi, Tian Chunzheng, Wang Qiunan, Yu Linlin, Zhang Jian, Zhang Libo, Wu Luyang, Sun Zhiyuan, Wang Shuozhe, Wei Chunxia, Ma Xin, Duan Xiangying, Lei Ertao, Li Huiling, Xie Pingping, Li Zaihua, He Jiawei, Wang Ziqi, Shen Jiakai, Xu Xiwang, and Chen Deyang.

introduction

For short-circuit faults in new energy stations and access systems, it is necessary to refine the model and method for calculating short-circuit current in new energy stations. In order to improve the calculation accuracy, due to the differences in equipment characteristics and station structures of wind power, photovoltaic and energy storage, the short-circuit calculation methods of each need to be calculated separately. Therefore, GB/T 44659 "Calculation of short-circuit current of new energy stations and access systems" was compiled. Divided into components. --- Part 1.Wind power generation. The purpose is to clarify the calculation method of short-circuit current of wind farms and access systems. --- Part 2.Photovoltaic power generation. The purpose is to clarify the calculation method of short-circuit current of photovoltaic power stations and access systems. --- Part 3.Energy Storage Power Station. The purpose is to clarify the calculation method of short-circuit current of energy storage power station and access system. Short-circuit current calculation of new energy stations and access systems Part 3.Energy Storage Power Station 1 Scope This document specifies the short-circuit current calculation model and method for energy storage power stations and access systems. This document is applicable to electrochemical energy storage devices connected to 10(6)kV and above AC networks, where the converter has current source characteristics. Calculate the short-circuit current of the power station. Flywheel, superconducting electromagnetic, supercapacitor and other types of energy storage power stations and access systems connected to the grid through power electronic converters The short-circuit current calculation is carried out as a reference. 2 Normative references The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 15544.1 Calculation of short-circuit current in three-phase AC systems Part 1.Current calculation GB/T 34120 Technical requirements for energy storage converters for electrochemical energy storage systems GB 38755 Guidelines for Safety and Stability of Power Systems GB/T 44659.1 Short-circuit current calculation for new energy stations and access systems Part 1.Wind power generation GB/T 44659.2 Calculation of short-circuit current for new energy stations and access systems Part 2.Photovoltaic power generation DL/T 2528 Basic Terminology of Electric Energy Storage 3 Terms, definitions and symbols 3.1 Terms and Definitions The terms and definitions defined in GB/T 15544.1, GB/T 34120, GB 38755, DL/T 2528 and the following apply to this document. 3.1.1 The sum of the rated capacities of all energy storage converters in the energy storage system. 3.2 Notation 3.2.1 The formulas in this document may be calculated using nominal values or relative values. When using nominal values for calculation, the legal measurement units shall be used. The following symbols apply to this document. a. Complex number operators c Voltage coefficient IN Rated current of the energy storage system converter converted to the grid-connected port (effective value) ″k Initial value of the AC component of the three-phase short-circuit current k Steady-state value of the AC component of the three-phase short-circuit current kBESS Steady-state output current of the energy storage system and static VAR generator (if any) during three-phase short circuit

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