CAJ | 학술논문

针对节能型起重机的双电机起升驱动系统的功率不平衡问题，结合同轴硬接双电机结构的特点，设计了一种基于PLC控制的调速系统。该系统主电机采用双闭环调速结构，从电机采用电压跟随调速，通过交叉耦合和PID控制使同轴刚性连接的2电机在运行时具有相同转矩，从而实现功率平衡。文中给出了系统的硬件结构图和软件流程图，并对调速控制系统起动时的特性进行了数值仿真分析，验证了此调速控制系统的可行性。
침대절능형기중궤적쌍전궤기승구동계통적공솔불평형문제，결합동축경접쌍전궤결구적특점，설계료일충기우PLC공제적조속계통。해계통주전궤채용쌍폐배조속결구，종전궤채용전압근수조속，통과교차우합화PID공제사동축강성련접적2전궤재운행시구유상동전구，종이실현공솔평형。문중급출료계통적경건결구도화연건류정도，병대조속공제계통기동시적특성진행료수치방진분석，험증료차조속공제계통적가행성。
In view of unbalanced power problem in twin-motor drive system of the energy-saving crane,considering the characteristics of coaxial hard-wired twin-motor structure,the PLC-control speed regulating system is designed.The main motor of the system is provided with double-closed-loop speed regulation structure,while the slave motor is provided with voltage following speed regulation.Through cross coupling and PID control,two motors by coaxial rigid connection have the same torque,hence to realize power balance.The paper gives the hardware structural chart and software flow chart,pres-ents numerical simulation analysis for the characteristics with the speed-regulating control system to start up,and verifies feasibility of the speed-regulating control system.