• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2015, Vol. 36 ›› Issue (4): 59-63.doi: 10.3969/j.issn.1000-7229.2015.04.010

• 输配电技术 • 上一篇    下一篇

国内外30Q105取向硅钢多工况磁性能对比研究

程灵1,赵永生2,马光1,杨富尧1,韩钰1,陈新1   

  1. 1. 国网智能电网研究院电工新材料及微电子研究所,北京市 102211;2. 国家电网公司科技部,北京市  100031
  • 出版日期:2015-04-01
  • 基金资助:

    国家电网公司重点科技项目(SGRI-WD-71-13-002)

Comparative Study on Magnetic Properties of 30Q105 Grain-Oriented Silicon Steels under Multiple Load Cases at Home and Abroad

CHENG Ling1, ZHAO Yongsheng2, MA Guang1, YANG Fuyao1, HAN Yu1, CHEN Xin1   

  1. 1. Department of Electrical Engineering New Materials and Microelectronics, State Grid Smart Grid Research Institute,  Beijing 102211, China;2. Department of Science and Technology, State Grid Corporation of China, Beijing 100031, China
  • Online:2015-04-01
  • About author:程灵(1988),男,工学硕士,工程师,主要从事高磁感取向硅钢材料研究工作; 赵永生(1969),男,工学博士,高级工程师,主要从事能源科学研究工作; 马光(1979),男,工学博士,高级工程师,主要从事节能材料应用技术研究工作; 杨富尧(1986),男,工学博士,工程师,主要从事高性能软磁材料研究工作; 韩钰(1977),女,工学博士,高级工程师,主要从事电工新材料研究工作; 陈新(1973),男,工学博士,教授级高工,主要从事电工新材料研究工作。

摘要:

检测了正弦波形磁场激励下国产和进口同等规格取向硅钢(30Q105)产品的磁性能,同时检测了其在谐波及直流偏磁电网复杂工况下的损耗。结果表明,正弦波形磁场激励下国产产品的铁损P1.7/50比进口产品的低0.03 W/kg;直流偏磁存在时,或三次、五次谐波与直流偏磁同时存在时,国产硅钢片的损耗不同程度高于进口材料。采用金相分析、电子背散射衍射及X射线衍射技术,对造成国内外同等规格取向硅钢材料,在标准正弦波形磁场激励与电网复杂工况下,损耗不一致的原因进行了分析,结果显示,取向硅钢材料内部组织不均匀性及{110}<112>黄铜取向晶粒的存在是造成上述差异的重要原因。

关键词: 取向硅钢, 直流偏磁, 谐波, 损耗

Abstract:

The magnetic properties of 30Q105 grain-oriented silicon steels at home and abroad were tested under invigorative magnetic field of sine wave, as well as the core loss under power grid complicated conditions with DC bias and harmonic wave. The results show that, the core loss (P1.7/50) of domestic sample is lower than that of imported sample by 0.03 W/kg under sine wave magnetic field. However, the core loss of domestic grain-oriented silicon steel is higher than that of imported sample by different degrees under DC bias or third, fifth harmonic wave with DC bias. The reasons for core loss diversity of the same grade 30Q105 grain oriented silicon steels at home and abroad under different working conditions were analyzed by optical microscope, electron back scattered diffraction, and X-ray diffraction technique. The results show that, the above differences are attributed to the inhomogeneity in grain size distribution and the existence of {110}<112> Brass orientation grains.

Key words: grain-oriented silicon steel, DC bias, harmonic wave, core loss

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