Technical Specification for Grid Meteorological Information System
1Key Takeaways
The Standard for the Technical Specifications of Power Grid Meteorological Information System (DL/T 2750-2024) has been published and is set to take effect on November 24, 2024. This technical standard aims to establish a comprehensive framework for the operational efficiency and reliability of power grid meteorologic…
2Expert Interpretation
An in-depth interpretation of the technical requirements of the DL/T 2750-2024 standard for the power grid meteorological information system, including system architecture design, 13 core functional modules, 7 major technical indicators and implementation key points analysis, to provide provincial power grid companies with standardized solutions for meteorological data fusion, disaster warning modeling and wind and solar power generation forecasting.
Analysis of standard technical framework
| System module | DL/T 2750 requirements | DL/T 1500 comparison | Technological evolution |
|---|---|---|---|
| Data collection | 3 categories and 27 items of data (including micro-weather station, lightning location, etc.) | Basic meteorological data collection only | New power equipment mapping relationship management |
| Disaster warning | 9 types of power-specific disaster models | 5 types of general meteorological disasters | Add dynamic simulation of ice cover and analysis of wildfire spread |
Key points for implementing core functions
Weather and load correlation prediction
It is necessary to establish a three-dimensional correlation model: ① Temperature-load curve ② Weather process influence coefficient ③ Regional differentiation correction. A provincial power grid application case shows that after adopting this standard method, the load forecast accuracy rate increased by 2.3%.
Wind and solar power forecast support
Need to configure wind tower and radiometer data assimilation module to achieve:
1. Wind power forecast: 0-4h ultra-short-term forecast error ≤15%
2. Photovoltaic forecast: use irradiance-cloud cover coupling algorithm
Key technical indicators
| Indicator item | Threshold requirement | Detection method |
|---|---|---|
| Monthly average operation rate | ≥99% | Calculation using formula (1) |
| Data qualification rate | ≥98% | DL/T 2288 Appendix D |
Network Security Implementation Specifications
System deployment must meet the following requirements:
1. Physical isolation of management information areas
2. Requirements for Class II security certification
3. Data encryption transmission complies with GB/T 36572
Standard evolution trend
New additions to the 2024 version:
① Standardized collection of six parameters for Electric power meteorological stations
② 3km grid accuracy requirements for numerical weather forecasts
③ Meteorological disaster scenario reproduction and simulation function