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| State evaluation of bulb tubular turbine unit based on variable weight cloud model |
| TAN Picheng1, FENG Fang2*, LIU Yu1, ZENG Huibin1, PAN Hong2, ZHAO Biao1, YIN Guiheng1 |
| 1. Wuling Electric Power Co., Ltd., Jinweizhou Power Plant, Hengyang, Hunan 421127, China; 2. School of Energy and Electricity, Hohai University, Nanjing, Jiangsu 211100, China |
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Abstract In order to make an objective evaluation on the operation state of the bulb tubular turbine, a multi-index system for its state evaluation was proposed based on cloud model, and a multi-layer comprehensive evaluation model of bulb tubular turbine at component level and equipment level was established. By introducing the cloud theory, the membership degree of each index to each state level of tubular turbine was directly obtained, and the membership matrix of each equipment was listed. Combined with the variable weight theory, the combined weight of each index is determined, and then the weighted average operator is transformed into the corresponding score, and the health state of bulb tubular turbine was obtained. Combined with the case study, it is found that this method is simple, easy to operate, and more accurate than the traditional method in turbine component level evaluation, which provides a new way for condition based maintenance of bulb tubular turbine.
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Received: 10 March 2021
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