Development of roving frame control system independently driven by multi-motor 多电机独立驱动粗纱机控制系统开发
FA467 roving frame control system is a large inertia and nonlinear system, traditional PID and self-adaption control method can not satisfy the need of this system. FA467粗纱机控制系统属于大惯量、非线性时变系统,采用传统的PID和通常的自适应控制都不能满足本系统的要求。
The control system adopted digital control technologies, such as PLC ( programmable logic controller ), servo drive, touch screen, and serial communication technology etc, which supported constructing the hardware platform of the roving testing frame control system. 控制系统采用可编程控制器、伺服系统、触摸屏、串口通信等数字化控制技术,构建了适用于该粗纱试验机的控制系统硬件平台。
Study and Design of Electronics Photo Frame Control(FC) Card and Driving Circuit of TFT-OLED 电子像框控制卡及TFT-OLED驱动电路的研究与设计
Thirdly, the mathematical model of the three-phase single stage grid-connected PV inverter were established in the three-phase stationary frame and two phase synchronization coordinate separately. The paper mainly analyzed double closed-loop control strategy based on synchronous frame control technology. 然后建立了三相单级光伏并网逆变器在三相静止坐标系和两相旋转坐标系下的数学模型,重点分析了基于同步坐标系直接电流控制技术的双环控制策略。