基于FPGA的直流电机调速控制器的设计

Design of DC Motor Modulator Based on FPGA

针对某船舶模型定位系统中调速电机,以FPGA(现场可编程门阵列)为控制器,采用数字比例积分调节器实现电机的速度控制算法,设计出数字化调速控制器。详细介绍了调速控制系统的工作原理,详细介绍了用FPGA实现比例积分调节器、调速控制器的软件设计。Maxplus Ⅱ仿真及实验表明,本调速控制器可取得良好的调速效果,能够满足船模定位系统对电机的控制要求。

For accurately control of DC motor in the ship model orientation system,a digital modulator of DC motor by Proportional-Integral （PI） based on Field Programmable Gate Array （FPGA） is presented in this paper.The principle of the modulator, realization of the PI controller,the Pulse-Width Modulation （PWM） controller and the modulator with Very-High-Speed Integrated Circuit Hardware Description Language （VHDL） are introduced.The result of simulation of Maxplus II and the experiment show that the modulator is reliable,and it meets the need of ship model orientation system.