电测与仪表2015，Vol.52Issue(20)：20-26,7.
基于HST模型的变压器寿命评估和优化检修系统
Development of the transformer life assessment and optimized maintenance system based on HST model
摘要
Abstract
Currently, the maintenance mode of power transformers which has been widely used is regular mainte-nance.It is key to correctly evaluate the reliability level of transformer in operation condition, which is directly related to the success of maintenance, on this basis, the power transformer lifetime evaluation and optimized maintenance model based on HST ( Hot Spot Temperature) is developed in this paper.In this model, the reaction speed theory of Arrhenius and Weibull Distribution as fundamental theories, which is used to describe the aging process of transformer and get the transformer failure rateλ, and then the equations with exponential form to compute HST, namely, calcu-late the top oil temperature relative to the environment temperature, and the increment of top oil temperature and the hysteretic temperature, thus it can get the HST ( equal to the sum of the aforementioned three variables) .Meanwhile, based on this model, the software analysis system based on Java language and MySQL database is developed, and the transformer maintenance process is optimized in the system, and then the statistical analysis is made to focus on the hot spot area in the designed system.Finally, the diagnosis results are obtained correspondingly.The designed model and system can effectively reduce the maintenance frequency, and improve the utilization coefficient of transformer, and the equipment reliability.关键词
HST模型/变压器/寿命评估/优化检修/诊断Key words
HST model/transformer/lifetime evaluation/optimized maintenance/diagnosis分类
信息技术与安全科学引用本文复制引用
蔡德华,程乐峰,周彬,陈韦宇,余涛..基于HST模型的变压器寿命评估和优化检修系统[J].电测与仪表,2015,52(20):20-26,7.基金项目
国家自然科学基金资助项目(51177051) （51177051）
中国南方电网科技项目资助(GDDW0520130301SG00003) （GDDW0520130301SG00003）
