Electric Power ›› 2018, Vol. 51 ›› Issue (10): 43-48.DOI: 10.11930/j.issn.1004-9649.201808014

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Optimized Control Technology for Start-up Process of Thermal Power Units Based on Intelligent Algorithm

ZHU Xiaoxing1,2, XUN Xin1,2, CHEN Houtao1,2, WANG Zhijie2,3, WANG Xihui2,3, PENG Liang2,3   

  1. 1. State Grid Hunan Electric Power Company Limited Research Institute, Changsha 410007, China;
    2. Hunan Province Key Laboratory of High Efficiency & Clean Thermal Power Technology, Changsha 410007, China;
    3. Hunan Xiangdian Test and Research Institute Company Limited, Changsha 410007, China
  • Received:2018-08-06 Online:2018-10-05 Published:2018-10-12
  • Supported by:
    This work is supported by Science-Technology Innovation Platform and Talents Program of Hunan Province (No.2016TP12027); Hunan Province Science and Technology Project (No.2012GK3017).

Abstract: Based on the constraint conditions such as equipment status before the start-up of unit, the intelligent planning for unit start-up path is realized by mixed integer linear programming algorithm. Using the risk analysis method based on similarity measure of fuzzy numbers, the risk is forecasted for the start-up process of steam turbine. Furthermore, the automatic start-up control method independent of the thermal stress model is realized, which is applicable to all kinds of mainstream steam turbines. Based on the human-simulated intelligent control method, the intelligent fault elimination method and the automatic pipe warm-up method are put forward. From these applications it is shown that the control technology based on intelligent algorithm can reduce the labor strength of the operators, improve the unit's start-up process, and enhance the intelligent control level of thermal power unit.

Key words: thermal power unit, intelligent algorithm, mixed integer linear programming, fuzzy risk analysis, automatic turbine control (ATC), human-simulated intelligent control

CLC Number: