基于大功率无刷直流电动舵机的建模与分析  

Modeling & Research Based on High Power Brushless DC Electrical Actuator

作　　者：师振云 魏麟欢[1] 高亚奎[1] 

机构地区：[1]中航工业第一飞机设计研究院,陕西西安710089

出　　处：《航空科学技术》2017年第4期37-42,共6页Aeronautical Science & Technology

摘　　要：以某型飞机电动伺服控制系统中的大功率无刷直流电动舵机为研究对象,利用Matlab完成无刷直流电机本体、减速器的数学建模,考虑到经典PID算法的缺陷,采用不完全微分PID算法实现对电动舵机的控制;建模过程中充分考虑了产品内部减速齿轮机械间隙带来的非线性影响及外部负载的惯性转矩影响,较准确地完成了某大功率电动舵机外在机械特性数学仿真。通过产品实测数据与仿真结果的对比分析,充分验证了数学模型的正确性;仿真模型也分析了产品目前设计不足之处,为进一步优化指明方向。Aimed at a certain kind of aircraft＇ s electrical sever system, mainly focused on high power electrical actuator, built model of brushless motor and reducer based on Matlab. Considering drawback of classical PID, used inexact differential PID to control electrical actuator, and some critical impacts, such as reducer＇ s mechanical backlash, inexact differential PID and nonlinear influence were also taken into consideration. Finally obtained a certain high power electrical actuator mechanical performance accurately. The comparing of simulation results and real test results, prove the accuracy of model, and it also provides theory support to design and optimize the product.

关 键 词：大功率电动舵机 机械间隙 不完全微分PID 仿真 

分 类 号：V241[航空宇航科学与技术—飞行器设计]