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	基于FPGA的静电支承系统数字控制电路设计
	陈钰祺 ; 李冬梅 ; CHEN Yu-qi ; LI Dong-mei
	2016-03-30 ; 2016-03-30
关键词	静电支承 控制电路 最小二乘 FPGA Electrostatic suspension Control circuit Least squares method FPGA TN79
其他题名	Digital control circuit design for electrostatic suspension system based on FPGA
中文摘要	设计了一种基于FPGA的静电支承系统数字控制电路,利用FPGA并行运算的优势提高运算速度和实时性。分析了A/D和D/A转换器分辨率对测控精度及量化噪声的影响,在此基础上选用了高精度A/D和D/A转换器以提高测控精度,降低量化噪声对检测信号的干扰。测试电路对直流和交流输入信号的响应,并用最小二乘法对误差进行校正和补偿,结果表明:电路对直流信号的测量误差在1mV以内;对频率1-500Hz范围内的交流信号幅值衰减最大为-0.092dB,相位滞后最大为-7°。; A digital control circuit of electrostatic suspension system based on FPGA is designed in this paper for the advantage of parallel Calculating of FPGA can improve the processing speed and real-time performance. High-precision ADC and DAC are chosen by analysing the influence of ADC and DAC resolution on quantization noise and the accuracy of control. The system response of DC & AC signals are measured and error calibration using least squares method is carried out. The results show that the measurement error for DC signal is within 1 mV; the amplitude attenuation is within-0.092 dB and the phase lag is within-7 �for sinusoidal signal with frequency ranging from 1 to 500Hz.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/144589]
专题	清华大学
推荐引用方式 GB/T 7714	陈钰祺,李冬梅,CHEN Yu-qi,等. 基于FPGA的静电支承系统数字控制电路设计[J],2016, 2016.
APA	陈钰祺,李冬梅,CHEN Yu-qi,&LI Dong-mei.(2016).基于FPGA的静电支承系统数字控制电路设计..
MLA	陈钰祺,et al."基于FPGA的静电支承系统数字控制电路设计".(2016).

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