Technical requirements for compressed air energy storage system used for electrical energy storage
1 Scope
This document specifies the technical requirements for the system performance of compressed air energy storage system used for electrical energy storage, compressed energy storage system, air storage system, heat storage and exchange system, expansion energy releasing system, electrical system, instrument and control system, describes the test methods for system performance, and specifies the system classification requirements.
This document is applicable to the compressed air energy storage system with rated discharge power of 1MW and rated discharge energy of 2MW·h and above. It can be used as reference for the compressed air energy storage system with other power and energy.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 150 (All parts) Pressure vessels
GB/T 151 Heat exchangers
GB/T 384 Petroleum products - Determination of heat of combustion
GB/T 2624.2 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 2: Orifice plates
GB/T 7064 Specific requirements for cylindrical rotor synchronous machines
GB/T 8117 (All parts) Rules for steam turbine thermal acceptance tests
GB/T 13609 Natural gas sampling guidelines
GB/T 13610 Analysis of natural gas composition - Gas chromatography
GB/T 14285 Technical code for relaying protection and security automatic equipment
GB/T 18940 Measurement of gas flow in closed conduits - Turbine meters
GB/T 21391 Measurement of natural gas flow by turbine gas meters
GB/T 25357 Petroleum, petrochemical and natural gas industries - Process positive-displacement rotary-type compressors
GB/T 25630 Turbocompressors - Performance test code
GB/T 31130 Coriolis mass flow meter
GB/T 31464 The grid operation code
GB/T 36293 Specification of distributed control system for thermal power plant
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
GB/T 40594 Technical guide for power grid and source coordination
GB/T 50062 Code for design of relaying protection and automatic device of electric power installations
GB/T 50063 Code for design of electrical measuring device of power system
GB 50251 Code for design of gas transmission pipeline engineering
DL/T 544 Operation management code for power system telecommunication
DL/T 843 Specification for excitation system for synchronous generators
DL/T 1402 Technical specification for application of synchrophasor in power plant and substation
DL/T 1870 Technical specification for power grid and source coordination
DL/T 2528-2022 Basic terminology of electric energy storage
DL/T 5003 Code for design of dispatch automation in power system
DL/T 5202 Technical code for designing of electric energy metering system
DL/T 5364 Regulations of content depth for electric power dispatching data network project preliminary design
DL/T 5506 Technical code for design of electric power system relay protection
JB/T 4732 Steel pressure vessels - Design by analysis
JB/T 4734 Aluminium welded vessels
GB/T 6443 (All parts) Axial and centrifugal compressors and expander-compressors for petroleum, chemical, and gas industry services
NB/T 10938 Coil-wound heat exchanger
NB/T 47004 (All parts) Plate heat exchangers
NB/T 47006 Aluminum plate-fin heat exchangers
3 Terms and definitions
For the purposes of this document, the terms and definitions given in DL/T 2528-2022 and the following apply.
3.1
compressed air energy storage system; CAESS
a combination of equipment for storing and releasing electric energy through compression and expansion of air medium
[Source: DL/T 2528-2022, 4.3.1.2]
3.2
air storage system
pressure vessel or geological space for inflating, storing and deflating compressed air and corresponding equipment combination
[Source: DL/T 2528-2022,4.3.2.2, modified]
3.3
air expander
equipment that convert thermodynamic energy of air into mechanical energy by air expansion
3.4
compressed energy storage process
process of using electric energy to drive a compressor to obtain high-pressure air, thus storing energy
3.5
expansion energy releasing process
process of using the high-pressure air stored in the air storage system to drive the air expander to drive the generator to generate electricity
4 General requirements
4.1 The compressed air energy storage system shall have one or more application functions such as system peak shaving, frequency modulation, emergency power support, voltage control, plan curve tracking, smooth power output, voltage sag support and standby power supply.
4.2 The compressed air energy storage system shall be able to receive and execute remote or local power control instructions, and the grid-connected performance shall meet the relevant requirements of GB 38755 and GB/T 31464.
4.3 The start-stop times of compressed air energy storage system shall be no less than 9,000 times and the service life shall be no less than 30 years.
4.4 The performance test of compressed air energy storage system shall be completed within one year after grid-connected power generation operation.
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 System classification
6 System performance
7 Compressed energy storage system
8 Air storage system
9 Heat storage and exchange system
10 Expansion energy releasing system
11 Electrical system
12 Instrument and control system
13 System performance test
Annex A (Informative) Compressed air energy storage system architecture
