NB/T 11200-2023
In-depth regulations on research contents for transmission planning of large power bases (English Version)

Standard No.

NB/T 11200-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

Professional Standard - Energy  CN  /  NB

Latest

NB/T 11200-2023

Introduction

Analysis of the core content of the standard

Research phase	Core requirements	Key technical indicators
Power supply organization	2+ scheme comparison	Output characteristics, regulation capability
Electric energy consumption	Cross-regional balance	Thermal power replacement rate, power abandonment rate
Transmission scheme	AC/DC hybrid demonstration	Short-circuit ratio, stability level

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Technology Evolution Analysis

This standard systematically integrates the planning requirements for new energy bases for the first time, with special emphasis on:

• PV/wind power bases need to provide probabilistic output curves
• DC transmission needs to evaluate the multi-infeed short-circuit ratio
• Dynamic reactive power compensation configuration is mandatory

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Implementation Recommendations

Hydropower Base Case

A cascade power station in a river basin adopts a 3 voltage level access solution, through:

1. Group access reduces short-circuit current
2. Configure SVG to improve voltage stability
3. Special study on subsynchronous oscillation risks

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Standard Innovations

Dimensions	Traditional requirements	Breakthroughs of this standard
New energy consumption	Electricity balance as the main factor	Minute-level regulation capability assessment
Safety verification	N-1 criterion	Multi-DC coupling analysis

NB/T 11200-2023 history

• 2023 NB/T 11200-2023 In-depth regulations on research contents for transmission planning of large power bases

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