基于MATLAB的涂布机双闭环调速系统的仿真研究

基于MATLAB与SIMULINK仿真软件设计了涂布机双闭环调速系统,其中包含电流负反馈内环与转速负反馈外环。通过仿真验证,结果表明,双环阶跃响应较为理想,涂布机起动时,电流环瞬时出现稍微超调现象,转速换速度增大也稍微超调,然而峰值与调整时间短暂,可保证快速进入恒流、稳速状态,稳定性与及时性良好;双环在不同扰动点作用的阶跃信号与冲激信号,导致系统发生动态性下降,而严重扰动现象,动态化下降与调整需耗费一定时间;系统具备突出技术性能指标,运行效果良好,稳定性与可靠性较好,且存在较大稳定裕度,频域性能指标良好,双环剪切频率彼此错位,使得频率分配协作科学合理。

Research on Double Closed-loop Speed Control System of Paper Coating Machine Based on MATLAB

Based on Matlab and Simulink simulation software, the double-closed-loop speed control system of the coating machine in the paper industry was designed, including the current negative feedback inner loop and the speed negative feedback outer loop. Through the simulation verification, the results showed that the double-ring step response was relatively ideal. When the coater started, the current loop overshot a little, and the speed of change increased slightly. Howerver, the peak value and adjustment time were short, which ensured that the system entered into the constant current and speed state quickly, with good stability and timeliness. The step signals and impulse signals of double ring acting on different disturbance points led to the dynamic decline of the system, while the dynamic decline and adjustment took some time due to serious disturbance. The system had outstanding technical performance index, good operation effect, good stability and reliability, and there was a large stability margin, good performance index in frequency domain, double ring shear frequency dislocation each other, which made the frequency distribution cooperation scientific and reasonable.