间歇发酵过程放罐时机的启发式模糊识别与预报

HEURISTIC FUZZY RECOGNITION AND PREDICTION OF DRAW-OFF TIMING FOR BATCH FERMENTATION PROCESS

间歇发酵过程放罐时机的优化是提高产量,产率和降低能耗的一个重要方面.本文运用模糊集理论,并将统计学方法和人的经验合为一体,提出了一种放罐时机的启发式模糊识别、预报的建模方法.并且,根据一实际工业抗生素生产的历史资料和现场的分析,运用本文提出的方法建立了该过程放罐时机的识别与预报模型.同时构造了计算机时实识别系统,几批工业实验的结果表明,模型预报的效果良好.

The optimization of draw-off timing for a batch fermentation process is very important to increase the yields, productivity and to reduce energy consumption. A modelling approach of the heuristic fuzzy recognition and prediction to the draw-off timing is developed by using the fuzzy set theory and combining the statistics method with human experience. Meanwhile, according to the analysis of the historical data and the process of a practical industrial antibiotic production, a model of the recognition and prediction to the draw-off timing of this process is established by means of the approach given in this paper. And, a real-time computer recognition system is designed. The result of several industrial tests shows that the effect of model recognition is satisfactory.