摘要
采用现代模糊控制理论与PID控制算法,设计一个基于SIMATIC CPU224 PLC的模糊PID控制器。恒压控制系统由模糊PID控制器、VLT2900变频器和水泵机组组成。解决了传统PID控制算法难以保证系统在任何工况条件下始终具有最佳控制性能的难题。仿真试验和实际运行表明:系统可以在线自整定PID参数,具有较好的自适应能力,控制效果比较理想。
Adopted modern fuzzy control theory and PID （proportional integral differential）control algorithm, a fuzzy-PID controller based on SIMATIC CPU224 PLC was designed. The constant pressure control system was made up of fuzzy-PID controller, Danfoss VLT2900 frequency converter and water pump set. It overcomes the shortcoming of traditional PID controller which cannot assure optimal control performance for system in any working condition. Experiments show that it can self-adjust PID parameters on- line. The system has a better adaotive eaoacitv and works more effectively than the traditional PID controllers.
出处
《仪表技术与传感器》
CSCD
北大核心
2008年第7期81-82,89,共3页
Instrument Technique and Sensor
基金
河南省教育厅自然科学基金项目(200510460011)
