TY - JOUR T1 - Analysis of electromagnetic performance of halbach PM brushless machines having mixed grade and unequal height of magnets JO - IEEE Transactions on Magnetics PY - 2013/01/01 AU - Shen Y AU - Zhu ZQ ED - DO - DOI: 10.1109/TMAG.2012.2227147 VL - 49 IS - 4 SP - 1461 EP - 1469 Y2 - 2024/10/23 ER -