本文旨在設計多相磁鐵輔助型同步磁阻電動機，電動機定子為48槽，轉子為8極。定子繞組為雙三相及六相，可配合兩組三相三臂型換流器電路作控制，提高系統的穩定度。轉子則針對磁極形狀作設計，以提高交軸電感Lq與直軸電感Ld差值，如此，不僅具有永久磁鐵的激磁轉矩，亦有磁阻轉矩。
在電動機結構上，本文將電動機轉子的磁極挖空形成磁障，於磁障中加入非稀土永久磁鐵，用以提高Lq與Ld之差值及降低感應電動勢的低次諧波含量，並以之為性能指標。文中採用電磁分析軟體JMAG作磁路分析，由性能指標作實體製作的依據。本文已完成多相磁鐵輔助型同步電動機的實體製作。在發電機模式以額定轉速2000 rpm運轉，當定子繞組為雙三相接線時，感應電動勢峰值為24.25 V，總諧波失真率為6.41 %，交軸電感Lq為12.41 mH，直軸電感Ld為5.44 mH，二者差值為 6.97 mH。此外，當定子繞組為六相接線時，感應電動勢峰值為25.21 V，總諧波失真率為12.04 %，Lq為10.92 mH， Ld為5.52 mH，兩者相差5.40 mH。此外，在額定轉速之發電機模式加入負載電阻Y接每相5 量得雙三相接線的輸出功率為214.33 W，六相接線的輸出功率為231.67 W，效率分別為72.75%及74.25%。分析與實測結果相接近，印證了本文電動機設計的可行性。

This thesis aims to analyze and design a multiphase permanent-magnet assisted synchronous reluctance motor. The motor has 48 slots and 8 poles. Dual three-phase winding with two sets of three-phase three-arm inverter as well as six-phase winding with six-phase inverter are designed to enhance system reliability. The innovative design of rotor magnet shape is proposed to increase the inductance ratio between quadrature as well as direct axis to yield both magnetic and reluctance torques.
The magnets in rotor are hollowed to form magnetic barriers. Non-rare earth permanent-magnets are then added in magnetic barriers to boost the above mentioned inductance ratio and reduce the low-frequency harmonic components of back electro-motive-force. The JMAG Designer software is used for magnetic circuit analysis. A practical multiphase permanent-magnet assisted synchronous reluctance motor is built. At the rated speed of 2000 rpm, experimental results show that for dual three-phase winding, the fundamental peak value of no-load voltage is 24.25 V with total harmonic distortion (THD) of 6.41%. The q– and d–axis inductances are 12.41 mH and 5.44 mH, respectively, yielding the inductance difference of 6.97 mH. Whereas, for six-phase winding, the fundamental peak no-load voltage is 25.21 V with THD of 12.04%. The associated q- and d-axis inductances are 10.92 mH and 5.52 mH, respectively, resulting in the inductance difference of 5.40 mH. Additionally, at the rated speed, the generated output power with the resistive load of 5 , for the dual three-phase winding is 214.33W, yielding an efficiency of 72.75%. While the six-phase winding under the same load generates 231.67W with efficiency of 74.25%. The feasibility of the proposed design is verified by the close agreement between analytic and experimental results.

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