摘要
针对当前电机控制器使用的控制芯片成本高昂及性能一般的情况,设计使用DSP2808高性能控制芯片研究电压空间矢量控制算法控制交流异步电动机;使用电流传感器和光电编码器采集电机的两相定子电流、转子转速、油门踏板电位器电压为负反馈变量,实现电流环和速度环的带PI调节负反馈的电压空间矢量控制算法产生SVPWM波形,产生的波形驱动光耦控制逆变器;实验测试产生的SVPWM波形符合脉宽不同的7段波要求,能够逆变72V直流电源从而驱动电机,实际测试结果表明此硬件系统的控制电机具有功率大、运行可靠等优点。
It is expensive and its performance is low to use the motor controller chip in present. The design uses a DSP2808 to improve the performance, and it is a high--performance control chip to research voltage space vector control algorithm AC induction motor principle. The design uses the current sensor and optical encoder to collect two--phase motor stator current, rotor speed and accelerator pedal potenti- ometer voltage, these can be Negative feedback. Achieve current loop and speed loop with PI regulator feedback voltage space vector control algorithm to generate SVPWM waveform. The Waveform drives opto--coupler to control the inverter. The tests of SVPWM waveforms are different width of 7--segment wave pulse fill the bill, inverter 72V DC power supply to drive the motor, The actual test results show that this hardware system control motor power, reliable operation.
出处
《计算机测量与控制》
北大核心
2013年第9期2442-2444,共3页
Computer Measurement &Control
基金
国家自然科学基金(60804059)
广西自然科学基金资助项目(2010GXNSFA013130)
