Heat pump dryer control system was designed for multigrain drying process, WEINVIEW touch screen and pro-grammable controller were used for upper and lower computer system, respectively.Flow chart of control system, sensor selection and function of upper and lower computer were analyzed. It showed that designed heat pump dryer control system could meet control requirements of multigrain and bulk grain by online simulation.Control system was mainly characterized by involving segmented program and frequency conversion control which could maximize to improve the versatility of control system.
heat pump dryercontrol processstate control systemsegmented program controlfrequency conversion control
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维普
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