电力变压器故障诊断专家系统TFDES

电力变压器故障诊断对电力系统的安全运行有着十分重要的意义。本文介绍电 力变压器故障诊断专家系统TFDES的原理与结构。以气相色谱法为主，T FDES综合运用各种故障检测的知识判断故障性质；运用模糊逻辑较好地处 理了故障诊断中的模糊性问题。初步测试表明，TFDES结构合理，推理正确 ，能有效地诊断运行中的变压器的内部潜伏性故障。

TFDES, AN EXPERT SYSTEM FOR POWER TRANSFORMER FAULTS DIAGNOSIS

The principle and construction of an expert system for power transformer faults diagnosis, called TFDES, are described in this paper. For the diagnosis of defects in transformers, TFDES makes inference mainly based on gas chromatography together with several other fault detection methods comprehensively. Some vagueness is dealt with properly by using fuzzy logic. The results of preliminary tests show that the system has a reasonable construction and a correct inference engine, it can detect the incipient faults of transformers in service effectively.