基于vc33+dsp的磁悬浮轴承系统数字控制器的研究（可复制）.pdf

南京航空航天大学硕士学位论文
摘要
本文采用美国 TI(Texas Instruments)公司的 DSP 芯片—TMS320VC33 作
为磁悬浮轴承系统数字控制器的 CPU,设计并制作了控制器的硬件系统,该系
统具有 8 路 14 位 A/D 采样通道、8 路 12 位 D/A 输出通道,能够分别实现多通
道集中采样或多通道分散采样。运用可编程逻辑器件(CPLD)实现了 DSP 对
A/D 和 D/A 的逻辑操作。实现了磁悬浮轴承 5 路位移传感器信号的采集、处理
与控制信号的输出。
本文在实验室磁悬浮轴承试验台上进行了实验研究。采用不完全微分 PID
控制策略,利用 C 语言和汇编语言混合设计了磁悬浮轴承数字控制器的软件。
本文采用差动方式的电涡流传感器来测量转子的位移信号,功率放大器采用的
是开关功率放大器。应用本文设计的控制器成功地在磁悬浮轴承试验台上实现
了转子的静态悬浮和动态悬浮,最高转速达到 27000r/min。静态和动态悬浮试验
结果表明设计的磁悬浮轴承系统控制器稳定性好、可靠性高、其控制精度达到
了预期的效果。为进一步实现先进的控制算法提供了硬件平台。

关键词:主动磁悬浮轴承、数字信号处理器、PID 控制算法、TMS320VC33、稳
定悬浮













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基于 VC33 DSP 的磁悬浮轴承系统数字控制器的研究
Abstract
This thesis used a piece of DSP chip : TMS320VC33 , produced by TI(Texas Instruments)
company of America to act as main CPU of our digital controller of Active ic
Bearing(AMB). The hardware is designed ,which has 8 A/D channels of 14bits and 8
D/A channels of centralized sampling and separate sampling of multiple
channels is realized. And CPLD is used for the control of the DSP on the A/D and
D/A converter.
The digital control software was developed with the C and DSP assembly
language in which PID control algorithm is adopted. And the experiment is carried
out in the AMB system, in which eddy current sensors are used for the detection of
rotor displacement signal and switch power amplifier is used. The experimental
results show the five-degree freedom ic rotor can be suspended stably and
rotated at high speed( this AMB experiment flat can rotated stably 27,000 rounds per
minute). The fine performance of the AMB system shows the good stability,high
reliability. The control precision has reached anticipated performance request. The
control system designed by this thesis can be a preferable experiment flat for further
study of more advanced digital control algorithm of ic bearing.



Key words: Active ic Bearing, Digital Signal Processor(DSP),
TMS320VC33, PID controller, Stable