變極
The paper introduces the DSP control of brushless DC motor, and the principle, management as well as software correcting of CEMF pole changing. 本文介紹了無刷直流電機的DSP控制,詳細介紹了在無刷直流電機控制中反電勢檢測換相的原理; 反電勢、電流檢測的管理;
The shadow of the bamboo pole changes as the sun moves. 竹竿的影子便隨著太陽的移動而變化。
In the gap magnetic field of pole changing synchronous machine,there would be large harmonics,which have some effects on the operating performance of the machine. 由于變極同步電機氣隙磁場中將存在較大的諧波,這些磁場諧波對電機運行性能將產(chǎn)生一些影響。
Based on analysis of the ampere conductor harmonics of pole changing windings and the adjusting wave with Fourier Transformation,a discussion has been done in the paper on the symmetry,M. M. F. 在用傅氏變換分析變前極繞組安導(dǎo)波及其調(diào)制波基礎(chǔ)上 ,討論了用逐相安導(dǎo)調(diào)制法得到的變后極繞組的對稱性、磁勢諧波含量、磁勢主波旋轉(zhuǎn)方向及變極方案擇優(yōu)等
reversing method of pole changing 反向法變極
