CAJ | 학술논문

以磁阻式旋转变压器的基本结构为基础，针对进一步提高旋转变压器精度的问题，提出一种定转子结构的优化方法．研究转子形状对旋变气隙磁通密度的影响，并总结出最小气隙长度及气隙比例系数这两个关键参数的选取规律．在定子结构优化中，讨论了定子齿上开辅助槽时，槽深对磁路及优化效果的影响，结果表明：转子的气隙比例系数和最小气隙长度分别取1.6和0.6,mm时优化效果最好，定子铁芯上引入辅助槽设计有效降低了低次谐波，使优化后的旋转变压器谐波含量明显减少，输出电压波形更具正弦性．
이자조식선전변압기적기본결구위기출，침대진일보제고선전변압기정도적문제，제출일충정전자결구적우화방법．연구전자형상대선변기극자통밀도적영향，병총결출최소기극장도급기극비례계수저량개관건삼수적선취규률．재정자결구우화중，토론료정자치상개보조조시，조심대자로급우화효과적영향，결과표명：전자적기극비례계수화최소기극장도분별취1.6화0.6,mm시우화효과최호，정자철심상인입보조조설계유효강저료저차해파，사우화후적선전변압기해파함량명현감소，수출전압파형경구정현성．
Using the basic structure of reluctance resolver as the cornerstone,a method was presented for optimizing the structure of the stator and rotor in order to improve the accuracy of resolver. Rules of selecting two key factors(the minimum air gap length and the gap scaling factor)were established by analyzing the influence of shape of rotor on resolver air gap flux density. In the stator structural optimization process,how the depth of the auxiliary slot on the stator teeth can impact the magnetic circuit and optimization results was also taken into consideration. Research shows that the best optimization result appears while the rotor’s air gap scaling factor is 1.6 and its minimum air gap length is 0.6 mm. Introducing an auxiliary slot design on the stator core can effectively reduce the low-order harmonics, significantly reduce rotary transformer’s harmonic content and produce more sinusoidal output voltage waveform.