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GB/T 44112-2024 PDF English


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GB/T 44112-2024: PDF in English (GBT 44112-2024)

GB/T 44112-2024 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 27.180 CCS F 19 Specification of Operation and Control for Connecting Electrochemical Energy Storage Station to Power Grid ISSUED ON: MAY 28, 2024 IMPLEMENTED ON: DECEMBER 1, 2024 Issued by: State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of Contents Foreword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Terms and Definitions ... 5 4 Overall Requirements ... 5 5 Operation Management ... 5 6 Power Control ... 7 7 On-grid / off-grid Switching ... 8 8 Operational Adaptability ... 8 9 Power Quality ... 8 10 Relay Protection and Automatic Security Device ... 9 11 Automation and Communications ... 9 12 Network Security ... 10 13 Electric Energy Measurement ... 11 Bibliography ... 12 Specification of Operation and Control for Connecting Electrochemical Energy Storage Station to Power Grid 1 Scope This document specifies the requirements for the operation management, power control, on- grid / off-grid switching, operational adaptability, power quality, relay protection and automatic security device, automation and communications, network security and electric energy measurement for connecting electrochemical energy storage station to power grid. This document is applicable to the operation control of electrochemical energy storage stations connected to the public grid through a voltage level of 10(6) kV and above. Other types of energy storage stations may take this as a reference. 2 Normative References The contents of the following documents constitute indispensable clauses of this document through the normative references in the text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 14285 Technical Code for Relaying Protection and Security Automatic Equipment GB/T 31464 The Grid Operation Code GB/T 36547 Technical Rule for Electrochemical Energy Storage System Connected to Power Grid GB/T 36548 Test Specification for Electrochemical Energy Storage System Connected to Power Grid GB/T 36558 General Technical Requirements for Electrochemical Energy Storage System of Power System GB/T 36572 Guidelines of Cyber Security Protection for Electric Power System Supervision and Control GB 38755 Code on Security and Stability for Power System DL/T 448 Technical Administrative Code of Electric Energy Metering DL/T 645 Multi-function Watt-hour Meter Communication Protocol DL/T 2528 Basic Terminology of Electrical Energy Storage 5.3 Before an electrochemical energy storage station is connected to the grid for the first time, technical parameters, measured parameters, and security protection schemes, etc. related to grid operation shall be submitted to the grid dispatching institution. 5.4 Before being connected to the grid, the electrochemical energy storage station shall carry out grid-connected operation debugging in accordance with the requirements of GB/T 36548 and pass start-up acceptance inspection. Within 6 months of grid-connected operation, a grid- connected operation debugging report shall be submitted to the grid dispatching institution. 5.5 When the maintenance or replacement of major primary equipment, such as: energy storage batteries and converters, as well as the modification or upgrade of major secondary equipment, such as: monitoring systems and protections, affect the grid-related performance of the electrochemical energy storage station, before the electrochemical energy storage station is re- connected to the grid, it shall pass debugging tests and complete acceptance inspection. 5.6 When the in-station primary equipment, secondary equipment and security protection scheme of the electrochemical energy storage station are changed after being connected to the power grid, relevant information shall be timely submitted to the power grid dispatching institution. 5.7 For equipment within the jurisdiction of the power grid dispatching institution, the electrochemical energy storage station shall perform relevant operations in accordance with dispatching instructions; for equipment within the scope of permission of the power grid dispatching institution, the electrochemical energy storage station shall perform relevant operations after obtaining permission from the power grid dispatching institution. 5.8 When executing dispatching instructions may endanger personal and equipment safety, the personnel on duty of the energy storage station shall report to the power grid dispatching institution and explain the reasons. 5.9 The maintenance of grid-related equipment in the electrochemical energy storage station shall be submitted to the power grid dispatching institution in advance for maintenance plans and maintenance applications, which can only be implemented after approval. 5.10 When grid-connected equipment in the electrochemical energy storage station has a fault, the faulty equipment shall be shut down and reported to the relevant power grid dispatching institution. 5.11 After the electrochemical energy storage station and energy storage converter exit operation in an emergency or fault situation, they shall not be connected to the grid on their own, instead, they shall be connected to the grid and resume operation under the arrangement of the power grid dispatching institution. 5.12 The electrochemical energy storage station shall submit charging / discharging plan proposals for the energy storage station to the power grid dispatching institution. The power grid dispatching institution shall reasonably arrange the operation mode and charge-discharge plan of the electrochemical energy storage station based on the plan proposals submitted by the electrochemical energy storage station. 5.13 The electrochemical energy storage station shall implement the planning curves and dispatching instructions issued by the power grid dispatching institution. When the operation mode and planning curves of the energy storage station are adjusted, the power grid dispatching institution shall notify relevant personnel of the electrochemical energy storage station in advance. 6 Power Control 6.1 Active Power Control 6.1.1 The electrochemical energy storage station shall have remote control mode and local control mode and be capable of manually controlling the switching between the two modes. In the remove control mode, it can automatically execute the control instructions issued by the power grid dispatching institution. 6.1.2 The electrochemical energy storage station shall be connected to the automatic generation control system (AGC) to control its charge-discharge power in accordance with the instructions of the power grid dispatching institution. 6.1.3 When a power grid fault occurs, the electrochemical energy storage station participating in emergency power support shall have the capability of reaching the maximum dischargeable or rechargeable power within 200 ms. 6.1.4 The primary frequency modulation dead zone setting of the electrochemical energy storage station shall satisfy the requirements of GB/T 36547. When the frequency deviation is greater than the primary frequency modulation dead zone, the primary frequency modulation shall correctly act. 6.1.5 The inertia response frequency change rate or frequency dead zone setting of the electrochemical energy storage station shall satisfy the requirements of GB/T 36547. When the frequency or frequency change rate is greater than the dead zone, the inertia response shall correctly act. 6.1.6 The AGC, primary frequency modulation inertia response functions of the electrochemical energy storage station connected to the grid through a voltage level of 10(6) kV and above shall be coordinated. Primary frequency modulation and inertia response shall have a priority higher than AGC. The primary frequency modulation and inertia response functions can be turned on or off through local or remote control in accordance with the demands of power system operation. 6.2 Reactive Power Control 6.2.1 The electrochemical energy storage station shall have the function of being connected to the automatic voltage control system (AVC) and respond to and execute the instructions of the 9.3 When the power quality index of the grid connection point does not satisfy the requirements of GB/T 36547, the electrochemical energy storage station shall generate alarm information and automatically upload the alarm information to the power grid dispatching institution. 9.4 When the power quality index of the grid connection point does not satisfy the requirements of GB/T 36547, the electrochemical energy storage station shall take measures to improve the power quality, and if it still cannot satisfy the requirements, the electrochemical energy storage station shall be shut down. 10 Relay Protection and Automatic Security Device 10.1 The protection configuration of the electrochemical energy storage station shall satisfy the requirements of GB/T 14285. 10.2 The electrochemical energy storage station shall carry out relay protection and automatic security device setting in accordance with the requirements of the power grid dispatching institution. The configuration and setting of protection shall be coordinated with the grid-side protection strategy. 10.3 The electrochemical energy storage station shall regularly calibrate and maintain the relay protection and automatic security device and keep the calibration records. 10.4 The electrochemical energy storage station shall be equipped with a fault recording device and connected to the power grid dispatching institution. The device shall record data from 10 seconds before the fault to 60 seconds after the fault and support the uploading of the fault recording data. 11 Automation and Communications 11.1 The electrochemical energy storage station shall be connected to the power dispatching data network through optical fiber private networks or wireless private networks and conduct two-way data interaction with the power grid dispatching institution. The electrochemical energy storage station connected to the power grid through a voltage level of 110(66) kV and above shall have two independent optical cable communication channels, and be equipped with corresponding communication equipment. 11.2 The communication mode and information transmission protocol between the electrochemical energy storage station and the power grid dispatching institution shall satisfy the requirements of the general communication protocol of the power system, and DL/T 634.5104 and GB/T 26865.2 protocols should be adopted. 11.3 The information uploaded by the electrochemical energy storage station shall satisfy the requirements of DL/T 5003, including but not limited to the following information: a) Rechargeable / dischargeable capacity, charging capacity, discharging capacity and power station energy status, etc.; b) Charging and discharging status, automatic power generation control function startup and shutdown, locking and remote / local signals, primary frequency modulation function startup and shutdown signals and action status signals, inertia response startup and shutdown signals and action status signals, etc. 11.4 The electrochemical energy storage station connected to the power grid through a voltage level of 35 kV and above shall be configured with synchronized phasor measurement or broadband measurement devices to upload synchronized phasor data to the power grid dispatching institution in real time. 11.5 The electrochemical energy storage station shall be configured with a unified clock synchronization system. 12 Network Security 12.1 The network security protection of the electrochemical energy storage station shall satisfy the requirements of GB/T 36572. 12.2 The electrochemical energy storage station shall satisfy the requirements of “security partition, network dedicated, horizontal isolation and vertical authentication”. Each automation system must be reinforced to satisfy its own security requirements, and secure and controllable automation equipment should be used. 12.3 The production control area of the electrochemical energy storage station shall adopt network security protection measures, such as: malicious code protection, intrusion detection and security auditing, etc. 12.4 The various operation systems and equipment in the production control area of the electrochemical energy storage station shall not be connected and remotely maintained through the Internet. 12.5 The electrochemical energy storage station shall deploy network security information collection equipment and access the information to the power grid dispatching institution. 12.6 The electrochemical energy storage station shall regularly conduct network security level assessments and security assessments through institutions with corresponding qualifications. 12.7 The operation and maintenance of the electrochemical energy storage station shall prevent the occurrence of network security incidents. After the occurrence of a network security incident, it shall organize the disposal and report to the power grid dispatching institution and cooperate in the investigation of related incidents. ......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.