1 Scope
This guideline specifies the principle and technical requirements to be followed for interconnecting the energy storage system, storing electric energy in an electrochemical or electromagnetic form, to distribution network. For energy storage elements interconnected to the power grid through the same converter as distributed generation, those specified in Q/GDW 480 Technical guideline for distributed generation interconnecting to power grid shall be followed .
This guideline is applicable to the energy storage system that is interconnected, in the operation regions of the State Grid Corporation of China, to distribution network with voltage of 35kV or below.
2 Normative References
The following referenced documents are indispensable for the application 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 2894 Safety Signs and Guideline for the Use
GB/T 12325 Power quality - Deviation of supply voltage
GB/T 12326 Power quality - Voltage fluctuation and flicker
GB 14050 Types and safety technical requirements of system earthing
GB/T 14285 Technical code for relaying protection and security automatic equipment
GB/T 14549 Quality of electric energy supply - Harmonics in public supply network
GB/T 14598. 9 Electrical relays - Part 22 - Section 3: Radiated electromagnetic field disturbance tests
GB/T 14598. 10 Electrical relays - Part 22 - Section 4: Fast transient disturbance test
GB/T 14598. 13 Electrical disturbance tests for measuring relays and protection equipment - Part 1: 1 MHz burst disturbance tests
GB/T 14598. 14 Electrical disturbance tests for measuring relays and protection equipment - Part 2: Electrostatic discharge tests
GB/T 15543 Power quality - Three-phase voltage unbalance
GB/T 17626. 7 Electromagnetic compatibility - Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation for power supply systems and equipment connected thereto
GB/T 24337-2009 Power quality - Interharmonics in public supply network
DL/T 1040 The grid operation code
DL/T 448 Technical administrative code of electric energy metering
DL/T 584 Code for setting of 3kv~110kv relaying protection equipment
DL/T 621 Earthing for AC electrical installations
DL/T 634.5-101 Telecontrol equipment and systems standard transport protocol subset - Part 101
DL/T 634.5-104 Telecontrol equipment and systems standard transport protocol subset - Part 104
DL/T 645 Multi-function watt-hour meter communication protocol
Q/GDW 480 Technical guideline for distributed generation interconnecting to power grid
Q/GDW 370 Technical guide for urban distribution network
Q/GDW 382 Technical guide of distribution automation
Q/GDW 156 The code of planning and design of urban electric network
IEC 61000-4-30 Electromagnetic compatibility - Part 4-30: Testing and measurement techniques - Power quality measurement methods
IEEE 1547 Standard for distributed generation interconnecting to electrical power system
IEEE Std 466 Emergency and backup power supply equipment for industrial and commercial use C22.3 NO.9 distributed power supply system interconnection standard
DIANJIANANQUAN [2006] No.34 General scheme for power secondary system security protection
No.5 decree of the State Electricity Regulatory Commission Power secondary system security protection regulations
3 Terms and definitions
3.1
energy storage system
equipment system capable of electric energy recyclable storage, conversion and release with electrochemical battery or electromagnetic energy storage medium
3.2
converter
Foreword i
1 Scope
2 Normative References
3 Terms and definitions
4 General technical requirements
5 Interface device
6 Earthing and safety
7 Power quality
8 Power control and voltage regulation
9 Relay protection and automatic safety device
10 Automation and communication
11 Electric energy metering
Explanation for preparation
