A fault diagnosis method for gas turbines based on improved data preprocessing and an optimization deep belief network
A fault diagnosis method for gas turbines based on improved data preprocessing and an optimization deep belief network
复制标题
基于改进数据预处理和优化深度置信网络的燃气轮机故障诊断方法
DOI:
10.1088/1361-6501/ab3862
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发表时间:
2019-11
影响因子:
2.4
通讯作者:
Chen Hai-sheng
中科院分区:
文献类型:
--
作者:
Yan Li-Ping;Dong Xue-Zhi;Wang Tao;Gao Qing;Tan Chun-Qing;Zeng De-Tang;Zhang Hua-liang;Chen Hai-sheng
A classifier trained by a normalized simulation parameter could not identify an actual fault. In order to solve this problem, improved data preprocessing is proposed which normalizes the deviation of the simulation parameter, thus making preprocessed simulation data more accurate at revealing the performance of an actual gas turbine. Furthermore, an optimization deep belief network (DBN) based on a genetic algorithm is developed, which shows a good classification ability. The superiority of these two methods is validated respectively by a three-shaft gas turbine platform. It has also been found that based on the DBN optimization method, adding outlet temperature parameter T3 to a high-pressure compressor can significantly improve diagnostic accuracy, increasing it by 10.1%. Finally, the fault experimental result validates the effectiveness of improved data preprocessing combined with an optimization DBN to diagnose faults in actual gas turbines.
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