摘要
空调器(定速机)产生二次谐波是个令人困惑的问题,文章运用电磁理论基础,简述了异步电动机不对称运转在定子绕组上产生二次谐波电流发射的原因,发现了异步电动机理论的不足,解释了空调器(定速机)二次电流谐波超标的根源,并对理解和应用GB17625.1-2003有关空调器(定速机)测量条件要求提出了参考意见。
It is perplexing that a second harmonic current is observed when an air conditioner in steady rotating speed is testedagainst IEC61000-3-2. With the basic electromagnetic theory of asynchronous machines, the prevalent analysis ofasynchronous machines is unreasonable, this paper briefly explains the occurring of second harmonic current fromasymmetry of the rotating magnetometive forces in a single-phase asynchronous motor incorporated within the com-pressor used in air conditioner.
关键词
空调器
二次电流谐波
电磁理论
磁动势
振动
air conditioner, second harmonic, asymmetry, magnetometive force, oscillation
