一款220V单相转换为380V三相交流电源的设计

Design of Power Supply from 220 V Single-phase to 380 V 3-phase

针对民用建筑只有220V单相电源而又需要用到380V三相电源的场合。设计了一种低成本三相交流电源，并对其主要硬件电路、工作原理和控制方案进行了阐述，给出了相关电路参数的设计原则。试验结果表明，所研制的电源满足了三相电源的技术要求，使用方便可靠，大大降低了申请三相电源的线路成本，随用随开，具有非常良好的市场前景。

This paper design the lower cost three-phase power for only having 220V single-phasepower and needing 380V three-phase power. It described main hardware circuit, working principle andcontrol scheme and design principles of the relevant circuit parameters. The experiment shows that this developed power meet the technical requirements of three-phase power,easy to use and reliable, itreduces the cost of application for three-phase power line greatly,using while opening and possessing good market prospects.