摘要
针对刮板输送机运行过程中首尾双机功率不平衡问题,采用变频调速方法进行电动机的转矩控制,考虑影响刮板输送机电动机功率平衡的因素,依据链条最小张力法确定负载转矩的比值,进而根据负载转矩调节电动机转速,实现电动机的功率平衡。利用AMEsim建立仿真模型,设定合理的仿真参数,对控制系统进行仿真,分析在电动机负载波动条件下控制系统的控制效果,验证控制系统的合理性,并实现功率平衡控制。
According to the power unbalance problems of head and tail electric motors during operation process of scraper conveyor,a frequency conversion speed regulation method was applied to the torque control of electric motor.In consideration of factors affected to power balance of electric motors applied to scraper conveyor,according to the minimum tension method applied to set up load torque ratio,based on rotary speed of electric motor regulated with load torque,the power balance of electric motors was realized.The AMEsim was applied to establish the simulation model and to set up rational simulation parameters.The simulation was conducted on the control system,the control effect of system under the condition of load fluctuation was analyzed,the rationality of control system was verified and the power balance control was realized.
出处
《煤炭科学技术》
CAS
北大核心
2017年第2期130-135,共6页
Coal Science and Technology
基金
辽宁省教育厅创新团队资助项目(LT2013009)
辽宁省教育厅资助项目(L2012118)
国家自然科学基金资助项目(51304107)
关键词
刮板输送机
功率平衡
变频驱动
直接转矩控制
scraper conveyor
power balance
frequency conversion driving
direct torque control
