基于DSP的逆变电源系统  

Inverter system based on DSP

作　　者：宣丽萍[1] 

机构地区：[1]黑龙江科技学院电气与信息工程学院,哈尔滨150027

出　　处：《黑龙江科技学院学报》2009年第1期46-49,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：黑龙江省教育厅科学技术研究项目(11531325)

摘　　要：针对5 kVA电力专用UPS中逆变电源的使用情况，设计了基于DSP的逆变电源系统。该系统直接利用SPWM变频控制技术，由DSP控制芯片生成SPWM波，并采用重复控制与PI双闭环控制相结合的方法，将190-286 V的直流电转换成50 Hz的220 V的稳定交流电。结果表明，该设计能够达到系统稳、动态性能良好，且控制电路简化，结构紧凑，成本降低的目的。Aimed at the use of the inverter in UPS of 5 kVA, this paper introduces the design of inverter system based on DSP. The system permits the direct adoption of the technique of SPWM frequency conversation control. The SPWM wave is generated by DSP. The system is characterized by changing the DC of 190 - 286 V into the stable AC of 220 V by means of the repetition control and the PI double closed-loop control. The result indicates that the design is capable of state performance and dynamic performance, simple control circuit, compact structure, and reduced cost.

关 键 词：逆变电源 SPWM DSP 

分 类 号：TP303.3[自动化与计算机技术—计算机系统结构]