一种基于双向变换器的数字化UPS设计

针对传统高频机型UPS存在可靠性较差、抗电流冲击能力弱等缺点5]，采用了一种集充电和逆变一体化的单相UPS拓扑结构，并利用DSP芯片TMS320F28062进行控制，有效解决了传统高频UPS存在的以上问题。系统所用元器件数量减少，控制环节简单。通过设计1kW样机并进行了试验，UPS在逆变模式下交流输出电压为220V，充电模式下直流输出电压为27.6V，验证了电路拓扑和软件结构的正确性。

A Design of digital UPS based on Bi-directional Converter

Focusing on the high frequency UPS has low reliability and weak resistance to surge current, this paper proposes the single phase UPS of topological structure that integrates charging and inverter together. Using DSP chip TMS320F28062 conduct control operations, effectively solved problems stated above that existed in traditional high frequency UPS. The system using fewer elements and simple control unit. By design 1kW prototype testing, AC output voltage is 220V and output DC voltage is 27.6V, verified the correctness of the circuit topology and software structures.