【作者】 高雅文； 王志国；

【Author】 Gao Ya-wen;Wang Zhi-guo;Institute of Automation, Jiangnan University;Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education);

【机构】 江南大学自动化研究所； 轻工过程先进控制教育部重点实验室；

【摘要】 针对发酵过程中p H值的精确控制问题,提出了一种基于数据驱动的PID参数自校正控制方法。首先采集系统闭环工作数据,构造当前时刻的"数据向量",并以特定格式于数据库;再利用相似性度量算法获得PID控制器的初始预测参数;若控制回路性能不理想,则使用优化方法校正控制器参数。然后将优化后的参数补充到数据库中,以开始新的迭代优化。最后通过仿真对所提方法的跟踪性能和抗干扰性能进行测试,实验结果证明了其有效性。更多还原

【Abstract】 For the precise control of pH value in the fermentation process, a PID parameter self-correcting control method based on data driven is proposed. Firstly, the closed-loop working data of the system is collected, the data vector of the current moment is constructed, and stored in the database in a specific format. Then, the similarity measure algorithm is used to obtain the initial prediction parameters of controller. If the performance of the control loop is not ideal, the controller parameters are optimized using the optimization method. Then the optimized parameters are added to the database to start the new iterative optimization. Finally, the tracking performance and anti-interference performance of the proposed method are tested by simulation and the results prove its effectiveness.更多还原