变频空调的分类和区别
变频空调按照工作原理可以分为交流变频和直流变转速两类，直流变频空调只是俗称罢了。直流电路的两个电极的极性是固定不变的，电流只有一个流向，不会发生交变，根本无频率可言。谈何变频-采用的直流调速技术要远远优于调频技术，直流变转速是正确的叫法。有关DC直流变转速空调和AC变频空调的简单区别:直流调速只经过一次电压转换，所以能源损耗比调频调速要小。另外，由于这种直流电机的转子是永磁的，又省却了三相交流异步电机的转子电流消耗。所以，它从电网电源到电动机这一段的功率因数要比调频调速方式高，节省了一定的能量。
Classification and difference of inverter air conditioners
According to the working principle, the inverter air conditioner can be divided into two types: AC frequency conversion and DC variable speed. The DC inverter air conditioner is just a common name. The polarity of the two electrodes of the DC circuit is fixed, the current has only one flow direction, no alternating occurs, and there is no frequency at all. Talking about the frequency conversion The DC speed regulation technology used is far superior to the frequency modulation technology. The DC variable speed is the correct name. The simple difference between DC DC variable speed air conditioner and AC inverter air conditioner: DC speed regulation only undergoes one voltage conversion, so the energy loss is smaller than the frequency modulation speed regulation. In addition, since the rotor of the DC motor is permanent magnet, the rotor current consumption of the three-phase AC asynchronous motor is eliminated. Therefore, its power factor from the grid power supply to the motor is higher than the frequency modulation method, saving a certain amount of energy.
