船舶电力系统中源变换器的控制策略

船舶综合电力系统采用集成化技术,在船舶内进行电能的产生、传输、转换和配给,并利用电能作为动力源实现舰船的航行和武器发射。现代舰船上的武器发射系统(如电磁炮、电化学动力炮)、舰载机弹射、回收、电气防护等瞬时功率可达数百兆瓦,对整个电力系统形成极大的冲击,影响供电系统的稳定性。为此,本文分析了恒功率负载和电压负载对舰船综合电力系统稳定性的影响,提出了一种适用于船舶综合电力系统源变换器的恒功率负载电压电流(U-I)单开关周期反馈控制方法,提高了船舶恒功率负载运行的稳定性。

Research on a Novel Inverter Based on DC/DC Converter Topology

The conventional inverters have the shortcomings of straightway conduction in transistors and the difficulty of realizing soft swit￣ching. A novel inverter based on the DC/DC converter topology is presented. The inverter is comprised of a combined Buck/Boost DC/DC converter and a bridge circuit. The front stage converter is controlled to output variable DC voltage and the bridge circuit is used to convert the DC voltage to AC output. The energy feedback technology and one circle control scheme are used t...