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GB/T 40606-2021Technical specifications for online security analysis and auxiliary decision-making of power grid (English PDF)

电网在线安全分析与控制辅助决策技术规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 11, 2021

Implementation date

May 1, 2022

Scope

GB/T 40606-2021 is the English-translated version of 电网在线安全分析与控制辅助决策技术规范.

GB/T 40606-2021 sets the technical requirements for online security analysis of power grids and for the auxiliary decisions that follow from it.

It covers the general requirements, the analysis modes, the preparation of the data the analysis runs on and the analysis functions themselves, with normative annexes on the intraday rolling dispatch schedule and on ultra-short-term and short-term bus load forecasting.

Online security analysis means checking the system against set disturbances, using online data on historical, current or future operating modes, and warning of limit violations and instability; the auxiliary decision is the proposed remedy that meets the security and stability constraints.

It applies to grids at 220 kV and above, and grids below 220 kV may follow it. It was issued on 11 October 2021 and has applied since 1 May 2022.

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Document preview — GB/T 40606-2021

National Standard of the People's Republic of China

ICS: 29.020
Classification: F 21

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

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Analysis mode
6 Data preparation
7 Analysis function
Appendix A (normative) Intraday rolling dispatch plan
Appendix B (normative) Ultra-short-term/short-term bus load forecasting

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

1 Scope

This document specifies the technical requirements for power grid online safety analysis and control auxiliary decision-making analysis mode, data preparation, and analysis functions.

This document is applicable to online safety analysis and control auxiliary decision-making of power grids with voltage levels of 220kV and above, and power grids below 220kV Follow the execution.

2 Normative references

The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 15544.1 Three-phase AC system short-circuit current calculation Part 1: Current calculation

GB/T 33590.2 Technical Specification for Smart Grid Dispatching Control System Part 2: Terminology

GB/T 33601 General model data naming specification for power grid equipment

GB/T 35692 System Planning Guidelines for HVDC Transmission Projects

GB 38755 Safety and Stability Guidelines for Power Systems

DL/T 1234 Technical Specification for Power System Security and Stability Calculation

3 Terms and definitions

The following terms and definitions defined in GB/T 33590.2 and GB 38755 apply to this document.

3.1 Power grid online security analysis

Based on the online calculation data of the grid history, current or future operation mode, analyze the safety of the power system according to the set disturbance, and obtain the results from the analysis.

Warnings will be given for limit violations, instability, and so on.

3.2 Auxiliary decision-making

Aiming at the overrun and instability obtained from the online security analysis of the power grid, a solution to meet the security and stability constraints is proposed.

3.3 Dispatching schedule

The dispatching agency prepares the general term for power generation plan, AC and DC link exchange plan, and maintenance plan.

Note: The power generation plan includes power generation plans such as thermal power units, nuclear power units, hydropower units, and new energy stations.

3.4 Intraday rolling dispatching schedule

According to the operation needs of the power grid, the regulatory agency takes into account the electricity spot market transactions and forms a dispatch plan after rolling adjustments within the day.

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

Referenced standards

Normative references

Similar standards

GB/T 13869-2026|GB/T 24114.2-2026|GB/T 33589-2026|GB/T 33592-2026|GB/T 33593-2026|GB/T 33603-2026

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