航磁用无人机电源控制系统设计  

Power control system design of UAV in aeromagnetic survey

作　　者：曹智文[1] 张一鸣[1] 张旭[1] 

机构地区：[1]北京工业大学电子信息与控制工程学院,北京100124

出　　处：《电源技术》2014年第7期1302-1305,共4页Chinese Journal of Power Sources

基　　金：深部探测技术与实验研究专项资助(201011080)

摘　　要：无人机航空磁测已经成为航空物探测量领域最新技术之一。电源系统是无人机的关键部分,电源系统供电质量的优劣直接影响无人机整体的工作状态。分析了无人机电源电磁干扰对光泵磁力仪正常工作的重要性。为了消除磁干扰,实现弱磁高精度测量,系统采用蓄电池作为供电电源,正激开关电源作为DC/DC转换模块。有源箝位复位方式对变压器每个周期进行复位。保护电路以单片机为核心,对供电电池的温度、供电电压和输出电压进行实时监测,采用谐振理论对有源箝位电路的工作特点进行了分析。设计电源系统简单、实用,变压器损耗小、电压应力低,运行可靠。所设计电源已在航磁测量无人机系统中得到实际应用,证明了设计的合理性。Unmanned aerial vehicle （UAV） aeromagnetic survey has become one of the latest technologies in the aerogeophysical survey field. Power control system is a key part of UAV; its power quality will directly affect the operating performance of the UAV. The importance of the EMI of UAV power to the normal operation of optical pumping magnetometer was analyzed. In order to eliminate magnetic interference and realize weak magnetic and high-precision survey, the battery was used as power supply and the forward switch power was used as DC/DC converter module. The active clamp was applied to reset the transformer in every cycle. As the core of protection circuit, the single chip microcomputer was used to monitor in real time the temperature, power supply voltage and output voltage of the battery. The resonance theory was used to analyze the operating characteristics of active clamp circuit. The designed power system is simple, practical with low loss of transformers, low voltage stress and reliable operation. The power system has been used in of UAV system of aeromagnetic survey, proving the rationality of design in practical.

关 键 词：航空磁测 自谐振光泵磁力仪 有源箝位 谐振 电磁干扰 

分 类 号：TM15[电气工程—电工理论与新技术]