The difference between inverter air conditioner and fixed frequency air conditioner, do you still expect how much electricity can be saved by inverter air conditioner?
In the traditional fixed-frequency air conditioner, the rotation speed of the compressor is basically unchanged, and when the indoor load changes, it is adjusted by starting and stopping the compressor to make the room reach the required temperature.
Inverter air conditioner uses inverter technology to adjust the speed of the compressor, and cooperates with the opening change of the electronic expansion valve to control and change the flow of refrigerant, so as to adapt to the change of load and adjust the indoor temperature to reach the required temperature.
From the above, it can be seen that the fixed-frequency air conditioner adapts to the load change with the start and stop of the compressor, and the inverter air conditioner avoids the frequent start and stop of the compressor through the frequency conversion of the compressor, and the adjustment is smoother, so theoretically the inverter air conditioner should be more energy-saving.
But in fact, how much can inverter air conditioners save compared with fixed frequency?
According to the experimental data, the power consumption of inverter and fixed frequency is almost no difference between the operation time of 4 hours, and only when the operation is more than 6 hours, the inverter air conditioner begins to have obvious power-saving advantages.
It can be understood that at the beginning of the air conditioner, in order to achieve the purpose of rapid cooling, the frequency conversion and fixed frequency are running at full speed, at this time, the power-saving advantage of frequency conversion is not reflected, and even the frequency conversion is higher due to the complex circuit.
When the indoor temperature target needs to be stabilized, the frequency conversion and fixed frequency are adjusted in their own way to adapt to the load change to maintain the temperature stability. At this time, the power consumption of the fixed-frequency compressor at the moment of start-stop is larger, but the power consumption at the time of shutdown is completely zero, and it is still difficult to reflect the power-saving advantage of frequency conversion without long-term operation accumulation.
For ordinary households, the air conditioner is usually turned on for not so long, and the load fluctuation at night is not as large as during the day, and the electricity bill for using inverter air conditioner and fixed frequency air conditioner (level 1 energy efficiency) will not be much different.
Therefore, if the average family wants to save on the electricity bill of the air conditioner, and then compare the price difference between the two air conditioners when they are purchased, it may be more cost-effective to choose a fixed-frequency air conditioner with energy efficiency level 1.
The real advantage of inverter air conditioning lies in the smooth adjustment of the compressor inverter, which makes the sound of inverter air conditioning smaller, the temperature stability is better, the compressor life is longer, and the comfort of people is higher.
As for the power-saving advantage, for the general use of home air conditioners, in fact, inverter air conditioners do not show much difference compared to fixed-frequency air conditioners.
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