考虑光伏系统的配电线路雷害风险计算方法和系统
By combining the entropy weight method and the TOPSIS method with the ATP-EMTP model, the accuracy problem of lightning damage risk assessment for photovoltaic system distribution lines was solved, realizing full-process risk assessment and differential protection for photovoltaic systems and distribution lines, and improving calculation accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- STATE GRID JIANGSU ELECTRIC POWER CO LTD NANJING POWER SUPPLY COMPANY
- Filing Date
- 2023-02-27
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, there are few studies on lightning risk assessment of photovoltaic systems and power distribution lines, especially the assessment of lightning threat to active power distribution systems containing distributed photovoltaics is not accurate enough. As more photovoltaics are connected to the power system, the importance of assessment is becoming increasingly prominent.
The entropy weight method is used to calculate the weight of each influencing factor, and the TOPSIS method is combined to calculate the lightning strike risk. Taking into account terrain information, line information, photovoltaic equipment information, lightning activity intensity and lightning withstand level, a lightning overvoltage calculation model is established through the ATP-EMTP simulation model, and the risk assessment is carried out using a processor and memory.
It improves the accuracy and precision of lightning damage risk calculation, and realizes full-process risk assessment and differentiated protection for photovoltaic systems and power distribution lines.
Smart Images
Figure CN116362006B_ABST