针对现有直流无刷电机控制器设计方案的不足,提出一种基于FPGA平台的无刷直流电机控制器设计方案,采用FPGA设计电机转速、电流双闭环控制系统,系统硬件包括以FPGA为核心的控制电路和以电机为对象的驱动电路,系统软件采用Verilog HDL生成速度和电流采样模块、电机驱动换相模块、PWM生成模块等,同时在VGA上显示控制系统的运行状态.控制器测试实验结果表明,设计的控制器能使电机在启动后1 s内达到转速给定值,1 s后保持在稳态值的±2%内,表明该控制系统具有较高的控制精度和较好的稳定性.%An FPGA platform based design scheme of brushless DC motor controller is introduced to solve the drawbacks of the available design schemes. The FPGA is used to design the double closed-loop control system of motor′s speed and current. The hardware of the system includes the control circuit taking FPGA as its core and drive circuit taking motor as its object. The Verilog HDL is adopted in system software to generate the speed and current sampling modules,motor drive commutation module, PWM generation module and so on. The running state of the control system is displayed on VGA. The experimental result of the controller shows that the controller can make the rotate speed reach the set value within 1 second after motor starting and main-tain within ±2% of the steady-state value,which means that the control system has high control precision and good stability.
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