摘要
针对双同步电机通过软性轴驱动大转动惯量压缩机传动系统轴振荡问题,设计了一种有转速差补偿转速微分的控制方案。该控制方案在经转速环控制的基础上,引入转速差补偿和转速微分,通过对转速及转矩进行补偿,起到增加阻尼抑制振荡的作用。在Simulink平台上搭建了双同步电机拖动压缩机模型及双同步电机同步控制模型,为控制策略研究提供依据。仿真结果表明,所提出的控制方案可显著地抑制扭振。
Shaft oscillation takes place in the drive system of a large-rotation inertia compressor driven by a dual-synchronous-motor system through a flexible shaft.For this problem,a control scheme with speed difference compensation and speed differentiation is designed.The control scheme introduces speed difference compensation and speed differentiation into speed loop control.By compensating the speed and torque,the purpose of increasing damping to suppress oscillation is achieved.A dual-synchronous-motor dragging compressor model and a dual-motor synchronous control model are built on the Simulink platform,and the theoretical basis of control strategies is provided.Simulation results show that the proposed control scheme can significantly suppress oscillation.
作者
马志军
MA Zhijun(Shenyang Yuanda Power Electronic Technology Company,Shenyang 110027,China)
出处
《电机与控制应用》
2020年第8期47-51,共5页
Electric machines & control application
关键词
双同步电机系统
同步控制
振荡抑制
转速差补偿
转速微分
dual-synchronous-motor system
synchronous control
oscillation suppression
speed difference compensation
speed differentiation
