一种计算变压器冷却器变频风机频率的方法
By calculating the no-load loss and load loss of the transformer, a frequency-airflow curve was established to determine the frequency range of the variable frequency fan. This solved the application problem of variable frequency fans in transformer cooling systems, achieved reasonable frequency design and startup, and ensured stable system operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG ELECTRIC GRP DIGITAL TECH CO LTD
- Filing Date
- 2023-08-10
- Publication Date
- 2026-07-17
AI Technical Summary
The lack of calculation methods and design basis for the frequency variation range of variable frequency fans in transformer cooling systems makes it difficult to apply variable frequency speed control technology in practical engineering.
By calculating the no-load loss and load loss of the transformer, the number of cooler groups and fans are determined, a frequency-airflow curve is established, and the frequency range of the variable frequency fan is calculated, including the upper and lower limits, to guide the frequency design and start-up frequency of the variable frequency fan.
It realizes the engineering application of variable frequency fans in transformer cooling systems, provides reasonable frequency design and start-up frequency, avoids transformer oil flow impact and fan damage caused by inappropriate frequency, and supports the formulation and programming of control strategies.
Smart Images
Figure CN117056641B_ABST