GB/T 46373-2025 Technical requirements for connecting compressed air energy storage station to power grid English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 13.220.10
CCS H 57
National Standard of the People's Republic of China
GB 46373-2025
Technical requirements for connecting compressed air energy storage station to power grid
压缩空气储能电站接入电网技术规定
Issue date: 2025-10-31 Implementation date: 2026-05-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 General Requirements
5 Power Control
6 Primary Frequency Regulation
7 Operational Adaptability
8 Power Quality
9 Relay Protection and Safety Automatic Devices
10 Dispatch Automation and Communication
11 Simulation Models and Parameters
12 Grid Connection Testing and Evaluation
References
1 Scope
This document specifies the overall requirements for grid-connected compressed air energy storage power plants, including technical requirements for power control, primary frequency modulation, operational adaptability, power quality, relay protection and safety automatic devices, dispatch automation and communication, simulation models and parameters, grid connection testing and evaluation, etc.
This document applies to the construction, operation, maintenance, and repair of new, reconstructed, and expanded compressed air energy storage power plants connected to the public grid at 10(6) kV and above voltage levels.
2 Normative Referenced Documents
The contents of the following documents are incorporated into this document as essential clauses through normative references. Versions of referenced documents with dates are applicable only to the version indicated; those without dates are applicable to their latest versions (including all amendments).
GB/T 7409.1 Synchronous Motor Excitation System Part 1: Definitions
GB/T 7409.2 Synchronous Motor Excitation System Part 2: Models for Power System Studies
GB/T 7409.3 Technical Requirements for Large and Medium-Sized Synchronous Motor Excitation Systems
GB/T 12325 Power Quality Voltage Deviation
GB/T 12326 Power Quality Voltage Fluctuations and Flicker
GB/T 14285 Technical Regulations for Relay Protection and Safety Automatic Devices
GB/T 14549 Power Quality Harmonics in Public Power Grids
GB/T 15543 Power Quality Three-Phase Voltage Unbalance
GB/T 22239 Basic Requirements for Cybersecurity Protection of Network Systems
GB/T 24337 Power Quality Interharmonics in Public Power Grids
GB/T 26399 Guidelines for Power System Safety and Stability Control
GB/T 31464 Grid Operation Guidelines
GB/T 36572 Guidelines for Cybersecurity Protection of Power Monitoring Systems
GB 38755 Guidelines for Power System Safety and Stability
GB/T 40586 Technical Requirements for Grid-Connected Power Sources Involvement in Grid Protection
GB/T 40591 Guidelines for Testing of Power System Stabilizers
GB/T 40595 Technical Regulations and Testing Guidelines for Primary Frequency Modulation of Grid-Connected Power Sources
GB/T 43687 Technical Requirements for Compressed Air Energy Storage Systems for Power Storage
GB/T 50063 Design Specifications for Electrical Measuring Instrumentation in Power Plants
DL/T 448 Technical Management Regulations for Electrical Energy Metering Installations
DL/T 843 Technical Conditions for Synchronous Generator Excitation Systems
DL/T 2528 Basic Terminology for Power Storage
3 Terms and Definitions
The terms and definitions defined in GB/T 43687, GB/T 40595, and DL/T 2528, as well as the following terms and definitions, apply to this document.
3.1 Power Storage Condition
The operating condition of a compressed air energy storage power plant where high-pressure air is stored by driving a compressor with electrical energy.
3.2 Power Generation Condition
The operating condition of a compressed air energy storage power plant where a generator is driven by an expander using high-pressure air stored in the storage system to generate electricity.
3.3 Response Time for Power Storage
The time from when a compressed air energy storage power plant receives a control signal to switch from standby mode to power storage mode until the power first reaches 90% of the rated power storage power.
4 Overall Requirements
4.1 A compressed air energy storage power plant should have the ability to control active power, reactive voltage, and primary frequency modulation, and its safe and stable operation should comply with GB 38755 and GB/T 31464.
4.2 A compressed air energy storage power plant should have the ability to receive and execute power control instructions from local or grid dispatching institutions.
4.3 The cybersecurity protection of a compressed air energy storage power plant should comply with GB/T 36572.
4.4 A compressed air energy storage power plant should establish a power system stability analysis and calculation model when connected to the grid, with modeling requirements complying with GB 38755.
4.5 The power generation unit of a compressed air energy storage power plant should have automatic quasi-synchronous grid connection functionality. When a synchronous motor-driven compression unit switches from variable frequency operation to grid frequency operation, it should have automatic quasi-synchronous grid connection functionality.
4.6 The power quality at the grid connection point of a compressed air energy storage power plant's power generation unit and compression unit startup should comply with GB/T 12326, GB/T 14549, and GB/T 24337.
4.7 A compressed air energy storage power plant should have overload capability, with a continuous operation time of no less than 30 seconds at 1.5 times the rated current.
4.8 A compressed air energy storage power plant should have a clearly defined power measurement point, located at the grid connection point, equipped with bidirectional power measurement devices, and have remote power measurement information transmission capabilities. Technical requirements should comply with GB/T 50063 and DL/T 448.
4.9 At rated power storage conditions, the chargeable energy of a compressed air energy storage power plant should not be less than the rated chargeable energy; at rated power discharge conditions, the dischargeable energy should not be less than the rated dischargeable energy.
4.10 A compressed air energy storage power plant should undergo grid connection testing before grid operation.
5 Power Control
5.1 Active Power Control
5.1.1 A compressed air energy storage power plant shall have the capability for active power control and shall be able to receive and execute active power control commands from both local and remote sources.
5.1.2 When responding to active power control commands, the power ramp rate of a recuperative compressed air energy storage power plant shall not be less than 3% of the rated power of the expander unit per minute, while that of a non-recuperative compressed air energy storage power plant shall not be less than 10% of the rated power of the expander unit per minute.
5.1.3 The charging response time of a compressed air energy storage power plant shall not exceed 30 minutes.
5.1.4 Excluding the idle state, the transition time from compression operation to power generation operation and from power generation operation to compression operation shall not exceed 1 hour.
5.1.5 The control deviation of active power during stable operation shall not exceed ±1% of the rated power.
Standard
GB/T 46373-2025 Technical requirements for connecting compressed air energy storage station to power grid (English Version)
Standard No.
GB/T 46373-2025
Status
to be valid
Language
English
File Format
PDF
Word Count
9000 words
Price(USD)
270.0
Implemented on
2026-5-1
Delivery
via email in 1~3 business day
Detail of GB/T 46373-2025
Standard No.
GB/T 46373-2025
English Name
Technical requirements for connecting compressed air energy storage station to power grid
GB/T 46373-2025 Technical requirements for connecting compressed air energy storage station to power grid English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 13.220.10
CCS H 57
National Standard of the People's Republic of China
GB 46373-2025
Technical requirements for connecting compressed air energy storage station to power grid
压缩空气储能电站接入电网技术规定
Issue date: 2025-10-31 Implementation date: 2026-05-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 General Requirements
5 Power Control
6 Primary Frequency Regulation
7 Operational Adaptability
8 Power Quality
9 Relay Protection and Safety Automatic Devices
10 Dispatch Automation and Communication
11 Simulation Models and Parameters
12 Grid Connection Testing and Evaluation
References
1 Scope
This document specifies the overall requirements for grid-connected compressed air energy storage power plants, including technical requirements for power control, primary frequency modulation, operational adaptability, power quality, relay protection and safety automatic devices, dispatch automation and communication, simulation models and parameters, grid connection testing and evaluation, etc.
This document applies to the construction, operation, maintenance, and repair of new, reconstructed, and expanded compressed air energy storage power plants connected to the public grid at 10(6) kV and above voltage levels.
2 Normative Referenced Documents
The contents of the following documents are incorporated into this document as essential clauses through normative references. Versions of referenced documents with dates are applicable only to the version indicated; those without dates are applicable to their latest versions (including all amendments).
GB/T 7409.1 Synchronous Motor Excitation System Part 1: Definitions
GB/T 7409.2 Synchronous Motor Excitation System Part 2: Models for Power System Studies
GB/T 7409.3 Technical Requirements for Large and Medium-Sized Synchronous Motor Excitation Systems
GB/T 12325 Power Quality Voltage Deviation
GB/T 12326 Power Quality Voltage Fluctuations and Flicker
GB/T 14285 Technical Regulations for Relay Protection and Safety Automatic Devices
GB/T 14549 Power Quality Harmonics in Public Power Grids
GB/T 15543 Power Quality Three-Phase Voltage Unbalance
GB/T 22239 Basic Requirements for Cybersecurity Protection of Network Systems
GB/T 24337 Power Quality Interharmonics in Public Power Grids
GB/T 26399 Guidelines for Power System Safety and Stability Control
GB/T 31464 Grid Operation Guidelines
GB/T 36572 Guidelines for Cybersecurity Protection of Power Monitoring Systems
GB 38755 Guidelines for Power System Safety and Stability
GB/T 40586 Technical Requirements for Grid-Connected Power Sources Involvement in Grid Protection
GB/T 40591 Guidelines for Testing of Power System Stabilizers
GB/T 40595 Technical Regulations and Testing Guidelines for Primary Frequency Modulation of Grid-Connected Power Sources
GB/T 43687 Technical Requirements for Compressed Air Energy Storage Systems for Power Storage
GB/T 50063 Design Specifications for Electrical Measuring Instrumentation in Power Plants
DL/T 448 Technical Management Regulations for Electrical Energy Metering Installations
DL/T 843 Technical Conditions for Synchronous Generator Excitation Systems
DL/T 2528 Basic Terminology for Power Storage
3 Terms and Definitions
The terms and definitions defined in GB/T 43687, GB/T 40595, and DL/T 2528, as well as the following terms and definitions, apply to this document.
3.1 Power Storage Condition
The operating condition of a compressed air energy storage power plant where high-pressure air is stored by driving a compressor with electrical energy.
3.2 Power Generation Condition
The operating condition of a compressed air energy storage power plant where a generator is driven by an expander using high-pressure air stored in the storage system to generate electricity.
3.3 Response Time for Power Storage
The time from when a compressed air energy storage power plant receives a control signal to switch from standby mode to power storage mode until the power first reaches 90% of the rated power storage power.
4 Overall Requirements
4.1 A compressed air energy storage power plant should have the ability to control active power, reactive voltage, and primary frequency modulation, and its safe and stable operation should comply with GB 38755 and GB/T 31464.
4.2 A compressed air energy storage power plant should have the ability to receive and execute power control instructions from local or grid dispatching institutions.
4.3 The cybersecurity protection of a compressed air energy storage power plant should comply with GB/T 36572.
4.4 A compressed air energy storage power plant should establish a power system stability analysis and calculation model when connected to the grid, with modeling requirements complying with GB 38755.
4.5 The power generation unit of a compressed air energy storage power plant should have automatic quasi-synchronous grid connection functionality. When a synchronous motor-driven compression unit switches from variable frequency operation to grid frequency operation, it should have automatic quasi-synchronous grid connection functionality.
4.6 The power quality at the grid connection point of a compressed air energy storage power plant's power generation unit and compression unit startup should comply with GB/T 12326, GB/T 14549, and GB/T 24337.
4.7 A compressed air energy storage power plant should have overload capability, with a continuous operation time of no less than 30 seconds at 1.5 times the rated current.
4.8 A compressed air energy storage power plant should have a clearly defined power measurement point, located at the grid connection point, equipped with bidirectional power measurement devices, and have remote power measurement information transmission capabilities. Technical requirements should comply with GB/T 50063 and DL/T 448.
4.9 At rated power storage conditions, the chargeable energy of a compressed air energy storage power plant should not be less than the rated chargeable energy; at rated power discharge conditions, the dischargeable energy should not be less than the rated dischargeable energy.
4.10 A compressed air energy storage power plant should undergo grid connection testing before grid operation.
5 Power Control
5.1 Active Power Control
5.1.1 A compressed air energy storage power plant shall have the capability for active power control and shall be able to receive and execute active power control commands from both local and remote sources.
5.1.2 When responding to active power control commands, the power ramp rate of a recuperative compressed air energy storage power plant shall not be less than 3% of the rated power of the expander unit per minute, while that of a non-recuperative compressed air energy storage power plant shall not be less than 10% of the rated power of the expander unit per minute.
5.1.3 The charging response time of a compressed air energy storage power plant shall not exceed 30 minutes.
5.1.4 Excluding the idle state, the transition time from compression operation to power generation operation and from power generation operation to compression operation shall not exceed 1 hour.
5.1.5 The control deviation of active power during stable operation shall not exceed ±1% of the rated power.
