摘要
文章论述了一种基于DSP的双PWM变频调速系统,设计了双PWM变频调速系统的硬件电路,该系统与传统的模拟型调速系统相比,具有控制灵活、功率因数高、回馈节能、谐波污染小、维护方便、成本低等特点。文章利用TMS320F2812的强大运算能力和快速实时处理能力,使得变频器中复杂的控制算法更加容易编程实现,完全实现了异步电动机高性能控制,仿真表明系统具有优良的动态特性和抗干扰特性。基于产生异步电机圆形磁场的SVPWM控制,减少了电机的转矩脉动和铁损。
A system using dual-PWM variable frequency speed regulation based on DSP is stated in paper, and the hardware circuit is designed, too. Compared with the traditional analog speed regulation systems, the system stated by the paper has many advantages such as flexible control, high power-factor, power saving with feed-back, no harmonic waves pollution, easy maintaining, and low cost. The DSP TMS320F2812＇s advantages like high mathematical operation ability and fast real-time processing ability are used to make the complex algorithm easier to program in the variable frequency system, and the high performance control of the asynchronous motor is totally realized by the system. The simulation specifies that the system has good dynamic feature and high anti-jamming feature. At last, the SVPWM control based on the asynchronous motor circular magnetic field reduces the electrical machinery torque pulsation and the iron loss.
出处
《国外电子测量技术》
2008年第4期1-4,共4页
Foreign Electronic Measurement Technology
