【作者】 张宏；

【导师】 陆元成；

【作者基本信息】 华东理工大学 ， 光学， 2013， 硕士

【摘要】 随着自驾游旅行风靡全球,越来越多的人选择自己开车去体验旅行的乐趣,旅途中常常会用到交流负载,如笔记本电脑、各类适配器等。这时就需一种将直流电转换成交流电的设备为这些负载提供电能,逆变电源的使用为户外旅行带来了极大的便捷。本文设计实现了一款1000W修正正弦波逆变电源,适合用于车载逆变系统或小型新能源发电系统。采用LCD液晶面板远程控制,显示方式醒目、直观。通过负载检测电路,在无负载开机的状态下逆变电源进入休眠模式,保持极低的静态功耗。出于设备安全性能上的考虑,逆变主电路前后级隔离,具有过欠压保护、过载保护、过温保护等保护报警功能,及时提醒用户处理故障问题。逆变结构上采用前级推挽升压和后级全桥逆变的两级变换方式,主变压器采用环形超微晶合金磁芯,有效地减小了整体体积并提高了逆变效率。利用主机通信接口,实现了两种逆变电源无线控制方案并比较了它们的优缺点。更多还原

【Abstract】 As self-driving tour continues to sweep the world, more people drive themselves for traveling. In some cases, they need a device, which can convert DC voltage into AC voltage, to provide power to the AC load, like notebook PC, adapter, etc. The use of power inverter has brought great convenience to outdoor travel.This paper designs a1000W modified sine wave power inverter, which is suitable for car inverter power supply and small renewable energy power system. The product provides an intuitive LCD display with the function of remote control. The inverter will go into sleep mode if nothing connects its output terminal, load detection circuit keep extremely low quiescent current. Thinking about the safety performance of the product, the main circuit is isolated electrically by the power transformer. The inverter serves the functions like input under voltage, over voltage protection, output over power protection, over temperature protection, which alerts user to resolve the error situation. We use push-pull DC boost and full bridge convert to achieve transforming input DC to output AC. Nanocrystalline magnetic core is chosen for the transformer, which reduces the volume and improves the efficiency of system. We design and achieve two methods to control power inverter wirelessly and compare the advantages and disadvantages of each method.更多还原