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《Coal Technology》 2018-01
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Coal Mine Ventilator Intelligent Control System Based on PLC Soft Redundancy

LIU Xu;College Of Optical And Electronical Information Changchun University Of Science And Technology;  
According to process control of coal main ventilator,the hardware and software redundancy PLC intelligent control system has been designed.Applying redundancy S7-300 for online monitoring system failure and bus anomaly,the main ventilator has been optimized with overrun gas model and frequency control.Failure and normal CPU switching time has been reduced by synchronous transmission,key data filtering and main ventilator experience mode can reduce the dependence on DP master switching time.Soft redundancy of main ventilator can reduce power loss,increase system reliability significantly,and improve coal mine operating environment.
【CateGory Index】: TD635;TP273
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