基于热点温度的变压器主动减载方法
By using a transformer active load shedding method based on hot spot temperature, the timing of load shedding and temperature are dynamically adjusted, solving the problem of transformer temperature rising to a dangerous point and ensuring the safe and stable operation of the power grid and the insulation life of the transformer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING UNIV
- Filing Date
- 2022-11-30
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, backup protection devices lack flexibility and adaptability when dealing with accidental overload caused by power grid flow shifts, resulting in transformer temperatures rising to dangerous levels. Existing control strategies cannot dynamically respond to changes in equipment safety conditions, posing a potential risk to safe and stable operation.
The transformer active load shedding method based on hot spot temperature is adopted. By calculating the maximum transfer load and dividing it into several unit load shedding amounts, the load shedding cycle is dynamically adjusted according to the hot spot temperature and ambient temperature. Combined with the basic stage and special stage operating temperatures and time delays, the safe and stable operation of the transformer is achieved.
This technology enables transformers to quickly recover to a safe temperature under various operating modes and fault types, avoiding temperature hovering and improving the safety and stability of the power grid and the insulation life of the transformer.
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Figure CN115842320B_ABST
Abstract
Citation Information
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