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GB/T 34930-2017Operation and control specification for microgrids connected to distribution network (English PDF)

微电网接入配电网运行控制规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

November 1, 2017

Implementation date

May 1, 2018

Scope

GB/T 34930-2017 is the English-translated version of 微电网接入配电网运行控制规范.

GB/T 34930-2017 is the Chinese standard "Operation and control specification for microgrids connected to distribution network". Its scope clause reads: This standard specifies the micro-grid access distribution network operation and control should follow the norms and requirements.

Including the operation mode and control strategy of microgrid Slightly, tie line exchange power control, and/off-grid conversion control, relay protection and safety automatic device, grid abnormal response, power quality, communication With automation, lightning protection and grounding.

This standard applies to access 35kV and below voltage level distribution network microgrid system. Its clauses include terms and definitions.

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Document preview — GB/T 34930-2017

National Standard of the People's Republic of China

ICS: 29.240.01
Classification: F 21

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 operating mode and control strategy
6 tie line exchange power control
7 and/off-grid conversion control
8 relay protection and safety automatic device
9 grid abnormal response
10 power quality
11 Communication and Automation
12 lightning protection and grounding
Appendix A (informative) microgrid record information

1 Scope

This standard specifies the micro-grid access distribution network operation and control should follow the norms and requirements. Including the operation mode and control strategy of microgrid

Slightly, tie line exchange power control, and/off-grid conversion control, relay protection and safety automatic device, grid abnormal response, power quality, communication

With automation, lightning protection and grounding.

This standard applies to access 35kV and below voltage level distribution network microgrid system.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 12325 power quality power supply voltage deviation

GB/T 12326 power quality voltage fluctuations and flicker

GB/T 14549 Power Quality Utility Harmonic

GB/T 15543 power quality three-phase voltage imbalance

GB/T 24337 Power Quality Public Grid Interharmonics

Regulation of operation setting of relay protection device for 3kV ~ 110kV power grid

DL/T 995 relay protection and grid security automatic device inspection procedures

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Microgrid

Composed of distributed generation equipment, electricity load, monitoring/protection and automation devices (including energy storage if necessary)

The internal power is basically a small balance of power network. It can be both grid operation with the external power grid, you can also run independently from the network.

3.2 Pointofinterconnection

Micro-grid and distribution network electrical connection point.

3.3 Plan off-line intentionaloffgrid

Microgrid in accordance with pre-planned by the grid mode switch to off-grid mode.

3.4 Unplanned off-grid

When the microgrid detects a power grid anomaly, the unplanned switch from the grid-connected mode to the off-grid mode.

3.5 Island islanding

Part of the power grid that contains the load and power supplies will remain isolated until it detaches from the primary network. Isolated islands can be divided into non-planned islands and meters […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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