微型机与应用
微型機與應用
미형궤여응용
Microcomputer & its Applications
2015年
16期
1-3,7
,共4页
直流无刷电机%直接转矩控制%PID 算法%转矩脉动
直流無刷電機%直接轉矩控製%PID 算法%轉矩脈動
직류무쇄전궤%직접전구공제%PID 산법%전구맥동
BLDC%direct torque control%PID algorithm%torque ripple
为了满足对无刷直流电机快速、平稳、准确调速的要求，设计了一种以 Cortex_M3内核为平台的无刷直流电机（ BLDC ）控制系统，并实现了该控制系统的硬件及软件部分。运用操作系统FreeRTOS 实时调度任务，采用速度、电流双 PID 控制算法，形成无刷电机的双环实时控制。为了更加有效地降低转矩脉动，实现了一种12扇区无磁链观测的二三导通模式直接转矩控制。试验结果证明，该控制系统响应速度快、调速范围广且精度高、性能稳定可靠、成本和功耗皆低，应用前景十分广泛。
為瞭滿足對無刷直流電機快速、平穩、準確調速的要求，設計瞭一種以 Cortex_M3內覈為平檯的無刷直流電機（ BLDC ）控製繫統，併實現瞭該控製繫統的硬件及軟件部分。運用操作繫統FreeRTOS 實時調度任務，採用速度、電流雙 PID 控製算法，形成無刷電機的雙環實時控製。為瞭更加有效地降低轉矩脈動，實現瞭一種12扇區無磁鏈觀測的二三導通模式直接轉矩控製。試驗結果證明，該控製繫統響應速度快、調速範圍廣且精度高、性能穩定可靠、成本和功耗皆低，應用前景十分廣汎。
위료만족대무쇄직류전궤쾌속、평은、준학조속적요구，설계료일충이 Cortex_M3내핵위평태적무쇄직류전궤（ BLDC ）공제계통，병실현료해공제계통적경건급연건부분。운용조작계통FreeRTOS 실시조도임무，채용속도、전류쌍 PID 공제산법，형성무쇄전궤적쌍배실시공제。위료경가유효지강저전구맥동，실현료일충12선구무자련관측적이삼도통모식직접전구공제。시험결과증명，해공제계통향응속도쾌、조속범위엄차정도고、성능은정가고、성본화공모개저，응용전경십분엄범。
In order to achieve the requirement of fast, smooth and accurate speed control of a brushless DC motor, this paper designed an BLDC controller based on Cortex_M3 kernel processor, and implemented hardware and software parts of the control system. The use of real-time operating system FreeRTOS scheduled tasks. Using the speed and current dual PID control algorithm, it formed a double-loop system that BLDC controled in realtime. In order to more effectively reduce the torque ripple, it achieved a 12 sector-free flux observed two or three conduction mode direct torque control. The test results show that the control system has rapid response, wide speed range and high precision, stable and reliable performance, low cost and power consumption, and application prospect is very broad.
