【摘要】 基于谐波含量较低的正弦散嵌绕组在中小型异步电动中的应用思想,提出了适用于高压大中型异步电动机的正弦硬绕组。通过对正弦硬绕组的谐波分析,针对硬叠绕组与散嵌叠绕组的不同点,并结合散嵌正弦绕组的设计思路,给出了由普通双层硬绕组改为正弦硬叠绕组的设计方法,包括联结和△联结的并联支路数、导线并绕根数、扁导线线规及线圈匝数确定方法。样机设计结果表明该方法的可行性,且在不增加电机成本的情况下,正弦硬绕组能够进一步提高高压异步电动机的效率,这对开发高压高效异步电动机是很有参考价值的。更多还原

【Abstract】 Based on the idea of sinusoidal random windings with low harmonics that are often applied to small and medium sized motors, the sinusoidal hard windings that can be applied to high voltage asynchronous motors are presented in the paper. According to the analysis on the harmonics of the sinusoidal hard windings and the differences between the hard lap windings and the random lap windings, the design method of the sinusoidal lap hard windings converted from the conventional double layer lap hard windings is introduced, which references to the design thought of sinusoidal random windings. The number of parallel branches and the stator parallel windings, the wire guage of the flat conductors and the turn number of the windings of -△connection are determined here. The results show that without increasing the cost, the efficiency of high voltage asynchronous motors with sinusoidal hard windings is enhanced further, which is feasible and very valuable for developing high voltage and high efficiency motors.更多还原