期刊文献+

基于数字反馈的单片铁损测试仪的设计与实现

Designment and implementation of single sheet tester based on digital feedback
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摘要 针对中小变压器和电机生产企业对电工钢片铁损现场检测的需求,利用基于数字反馈法的波形控制技术,研制了一款电工钢片单片铁损测试仪。首先采用STM32F103RC微控制器内部集成的12位DAC产生励磁信号;接着采样U型测试探头的磁感应强度信号以进行波形控制,使得磁感应强度及波形系数误差均小于0.1%;最后同步采样励磁电流和感应电压,进行铁损计算。实验结果表明,该测试仪有效地保证了磁感应强度及波形系数误差均小于0.1%,满足单片铁损测试过程中磁感应波形正弦的要求;提高了铁损测试速度和精度。 Aiming at the small enterprises of transformer and electrical motor of iron loss on-site testing requirements,a single sheet tester based on digital feedback to control the waveform was designed.The 12-bit DAC of STM32F103RC was firstly used to produce the excitation current and the induced voltage was sampled,the errors of the flux density and waveform factor were adjusted within 0.1% by waveform controlling.Then the excitation current and induced voltage were synchronous sampled and the iron loss was calculated.The results show that,the errors of the flux density and waveform factor are both effectively ensured within 0.1% by the single sheet tester,the waveform of flux density can meet the requirement of sinusoidal.So the speed and accuracy of iron loss testing are improved.
出处 《机电工程》 CAS 2010年第9期72-75,共4页 Journal of Mechanical & Electrical Engineering
基金 浙江省科技厅资助项目(2007C21018)
关键词 铁损测试仪 数字反馈 磁感应强度 波形系数 single sheet tester digital feedback flux density waveform factor
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参考文献8

  • 1何忠治.电工钢[M].北京:冶金工业出版社,1997.
  • 2国家标准化工作委员会.GB/T3655-2008用爱泼斯坦方圈测量电工钢片(带)磁性能的方法[s].北京:中国标准出版社,2009.
  • 3Johannes Sievert,刘亚丕.电工钢片磁性的计量问题[J].中国计量学院学报,2008,19(2):91-97. 被引量:5
  • 4IEC 60404-3 Ed. 2. 1 : 2002, Magnetic materials. Part3 : Methods of measurement of the magnetic properties of magnetic sheet and strip by means of a single sheet tester[ S].
  • 5叶芬斌,钱井博文,陈志明,罗进.铁损测试仪的校准方法之研究(一)[J].电子质量,2003(10):20-21. 被引量:5
  • 6周乃明,施乾信,王兵.采用C8051F020 DAC产生任意波形[J].电子工程师,2006,32(8):27-29. 被引量:3
  • 7MATSUBARA K, TAKAHASHI N. Acceleration technique of waveform control for single sheet tester[ J ]. IEEE Transactions on Magnetics, 1995,31 (6) : 3400 - 3402.
  • 8[日]远坂俊昭.测量电子电路设计--滤波器篇[M].北京:科学出版社,2006:21-25.

二级参考文献27

  • 1FIORILLO F. Measurement and characterization of magnetic materials. Elsevier Series in EIectromagnetism [M]. Amsterdam: [s. n], 2004.
  • 2IEC 60404-2 Ed. 3. 1.- 2008, Magnetic materials. Part 2: Methods of measurement of the magnetic properties of electrical steel sheet and strip by means of an Epstein frame.
  • 3IEC 60404-3 Ed. 2. 1:2002, Magnetic materials. Part 3: Methods of measurement of the magnetic properties of magnetic sheet and strip by means of a single sheet tester.
  • 4BERTOTTI G, FERRARA E, FIORILLO F, et al. Loss measurements on amorphous alloys under sinusoidal and distorted induction waveform using a digital feedback technique[J]. J Appl Phys, 1993, 73:5375-5377.
  • 5CAPPTULLER H, AHLERS H. Digital sampling measuring device for determining a. c. properties of electrical sheet steel [C]. Proc. Intern. Colloq. EIectronique Mesure, 1975 : 607-614.
  • 6RAHF L, SIEVERT J D. Mikroprocessor-controlled test assembly for electrical steel sheets[J]. IEEEE Trans Instrum Meas, 1987, IM-36:847-850.
  • 7DEWULF M, MELKEBEEK J. On the advantages and drawbacks of using digital acquisition systems for the determination of magnetic properties of electrical steel sheet and strip[J].J Magn Magn Mater, 1999,196-197.
  • 8AHLERS H. SIEVERT J D. Uncertainties of magnetic loss measurements, articularly in digital procedures. PTB-Mitt, 1984,94 : 99-107.
  • 9STEARNS S D. Digital signal analysis. 5 th Edition[M]. [S. I] :[s. n] ,1991.
  • 10SIEVERT J D, AHLERS H. Is the Epstein frame replac eable[J]. Anales de Fisica Serie B, 1990,86:58-63.

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