基于TMS320LF2407A的节能型变频调速系统在电牵引采煤机上的实现

针对现有大功率电牵引采煤机能耗高的问题,提出了一种基于TMS320F2407A的"双逆变器-双电动机"节能型变频调速系统的设计方案,介绍了该系统的组成,分析了系统的工作原理,给出了系统的节能计算公式。该系统以交流异步电动机作为模拟负载,双逆变器在直流母线侧采用并联接线方式,应用DSP实时控制和跟踪随动系统,实现了电牵引采煤机电动机状态的改变,整个系统为能量的回馈提供了输送路径。Matlab仿真结果证明该系统原理正确,节能效果显著。

Implementation of Energy-saved Frequency Conversion Speed Regulation System in Electrical Haulage Shearer Based on TMS320LF2407A

In view of the problem of high energy consumption of existing high-power electrical haulage shearers,the paper proposed a design scheme of energy-saved frequency conversion speed regulation system based on TMS320LF2407A with dual inverters-dual motors and introduced components of the system.It analyzed working principle and gave energy-saved computational formula of the system as well.The system takes AC asynchronous motor as simulation load,dual inverters were connected in parallel at DC bus side,uses DSP to real-timely control and track servo system,and realizes change of motor state of electrical haulage shearer. The system provided dilivery loop of energy feedback too.The simulation result of Matlab proved that principle of the system is correct and energy-saved effect is remarkable.