基于模糊综合评价的变压器状态评分方法研究

Research of transformer condition grading based on fuzzy synthesis evaluation

状态维修是变压器维修策略的发展方向,准确对变压器状态进行量化评分是状态维修的基础工作。目前变压器状态评分方法较少,已有的方法多为定性评价,也有文献提出了对电气设备状态信息进行评分并加权处理的方法,但评分方法比较简单且缺乏客观依据。基于此本文提出了一种综合考虑变压器状态信息,将变压器状态信息评分与模糊综合评价相结合的变压器状态评分方法和步骤。实例分析表明了该方法的有效性和实用性。

Condition maintenance is the developing direction of the transformer maintenance strategy and to exactly quantify and grade the transformer condition are the basic work of the condition maintenance. At present, most of the existent methods are only qualitative analysis. Some literatures put forward a graded approach to evaluate the condition of electric power equipments by means of grading and weighting their condition information, but the method is simple and lack of external proof. Based on the conditions, this paper puts forward a method that synthetically considering the transformer＇s condition information, and Combining the grading with fuzzy synthesis evaluation. Finally, the result of practical example verifies the accuracy and the practicability of the proposed idea.