多旋翼无人机直流电机驱动系统优化  

Optimize driving system of direct current motor for multiple rotor unmanned aerial vehicle

作　　者：何帅[1,2] 裴信彪 宫勋[1] 徐东甫 白越[1] 续志军[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100039

出　　处：《电子技术应用》2016年第9期2-5,9,共5页Application of Electronic Technique

基　　金：国家自然科学基金(11372309;61304017);吉林省科技发展计划重点项目(20150204074GX);吉林省科技发展计划(20150520111JH);省院合作科技专项资金项目(2014SYHZ0004);中国科学院科技服务网络计划(STS计划)(KFJ-EW-STS-068)

摘　　要：为了提高电机驱动系统可靠性,采用三相全控电桥H_PWM_ON_L_ON控制方式来驱动电机转动,通过反电势过零点检测方式分析三相反电动势端电压与中性点的关系,采用功率MOSFET作为开关器件,采用三个IR2101芯片驱动六个复合功率管实现精准换相。采用该驱动系统的无人机空载续航时间与采用常规H桥驱动系统相比提高了20%,该驱动系统可在-25℃的条件下依然稳定运行,响应速率提高10%。To enhance the driving system reliable. This article control the motor by three- phase fully- controlled bridge H_PWM_ON_L_ON. Use the principle of back electromotive force zero- crossing testing, the relationship between the floating phase terminal end voltage and midpoint voltage in DC link of three phases ＇ back electromotive force was analyzed. Choice power MOSFET to be the switching devices. Use three IR2101 chip to drive six composite power for realizing the change of phase. The cruising time of unmanned aircraft that using this driving system extended 20 % than the usual H- bridge system. This system can even running stable at- 25 ℃. The response rate of this system enhance 10 %.

关 键 词：无位置传感器无刷直流电机 三相全控电桥 复合功率管 IR2101 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]