摘  要：针对国内瓦楞纸板横切机生产线生产效率低、剪损大、电网谐波污染严重的缺点，通过分析瓦楞纸板横切机生产工艺及要求，提出了基于双PWM驱动的永磁同步电机控制系统设计方案。该文详细阐述了横切机控制系统的构成和设计原理。该控制系统具有自动化程度高，剪切精度高，高功率因数、低谐波污染的特点。
关键词：双PWM；能量回馈；横切机；永磁同步伺服电机

Abstract: Aiming at the shortcoming of the corrugated cardboard production line,the paper presented a high performance controlled system based on dual-PWM and permanent magnet synchronous servo motor by analyzing the feature of corrugated cardboard‘s production technology.The characteristic of its structure and technique were explained in detail.As a result，the system has many merits such as high degree of automation，high precision of shear，high power factor,low harmonic pollution and energy reversible. Key Words: Dual-PWM;Energy feedback;Cross-cutting machine;Permanent magnet synchronous servo motor