This article describes a control object model for small to medium-sized UPS prototype experimental system based on TMS320F240 digital control platform. By comparison system unipolar modulation the SPWM way, given a specific set of hardware and software digitize all types of resources and the core processing chip implementations. The system hardware mainly includes the output voltage, output current, mains frequency/phase and other types of signal acquisition and processing, and the output of the PWM signal isolation, drive. System software part includes the realization of the UPS a variety of system functions, the main research a software PLL (Mains tracking), valid value adjustment, the realization of all kinds of protection, PWM wave generation, closed-loop control.

基于DSP的在线式UPS数字化控制技术研究.nh

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