Home » How has the Technology for the Inverter Air Conditioner Evolved in the Lst 5 Years?

How has the Technology for the Inverter Air Conditioner Evolved in the Lst 5 Years?

An inverter air conditioner has a compressor motor with variable speed capabilities that helps control the refrigerant flow. The device, in such a case, exhibits a variable cooling capacity as per the requirement. The frequency of the power source determines the compressor’s rotational speed in an inverter air conditioning unit. It employs various sensors to control the motor’s speed, which in turn regulates the amount of refrigerant into the evaporator coils to deliver precisely the correct quantity of cooling required. The inverter technology reduces the frequency of the start and end of the compressor cycle, giving it a smooth operational run, which enhances the unit’s long-term energy efficiency.

What is inverter technology?

The inverter technology (DC) is the most recent advancement in compressor electro motor technology. The speed of the compressor motor is controlled by an inverter, which allows the temperature to be constantly regulated.

The DC Inverter devices have a variable-frequency drive with an adjustable electrical inverter to manage the compressor’s speed and cooling/heating output. The drive transforms incoming AC power to DC and then creates the required frequency current via modulation in an electrical inverter. A microprocessor can measure the temperature of the surrounding air and change the compressor’s speed accordingly. Inverter air conditioning machines have enhanced efficiency, prolonged part life, and reduced instances of rapid load swings compared to typical air conditioners. As a result, inverter AC units are quieter, have lower operating costs, and have fewer breakdowns. Although inverter air conditioners are more expensive than constant speed air conditioners, they have lower energy costs. Depending on the use, the payback time is around two years.

Difference between inverter AC and a regular AC

When an air conditioner’s compressor is turned on, it consumes a lot of energy. In addition, if the compressor is turned off completely, it will only come back on when the thermostat is triggered. Let’s look at how this may affect you in a room with a temperature of around 33 degrees. Assume you have your non-inverter air conditioner set at 20 degrees Celsius. The compressor will stop down once it reaches the 20-degree shut-down temperature. However, when the temperature rises significantly (say, 24 degrees), the compressor almost always turns on, increasing the effective power use. Furthermore, while the AC is attempting to lower the temperature, incoming insolation will attempt to raise the temperature beyond 24 degrees, resulting in a large compressor run time.

In the case of an inverter air conditioner, it will chill the room to the specified temperature, and once it reaches that temperature, it will turn the compressor on low power to cool the room just enough to replace the incoming heat. This implies that even with a little cooling capacity, it will be able to maintain a consistent temperature without having to use its compressor at full load.

Evolution of inverter air conditioner technology

The compressor in an air conditioning system is traditionally an ON or OFF type, meaning it either operates at full capacity or not at all. It turns on when the room thermostat indicates that cooling is required and turns off when the target temperature is reached. With each change of load in the room, the cycle is repeated. The usage of microcontrollers and IGBT modules to operate the compressor DC or AC motor has enabled inverter technology to thrive thanks to advancements in power electronics. In addition, the variable frequency drive may change the speed of the compressor motor.

In contrast to a typical split air conditioner system, which simply cycles the compressor on and off to maintain temperature control, inverters are used in air conditioning systems to alter, or modulate, the compressor’s speed. According to various surveys, the number of ACs increased from about 4 million units in 2017 to around 7 million units in 2021, and about 50% of them are now Acs with inverter technology. In the previous 5 years, the penetration of inverter Acs has increased in the Indian market, and this has been due to increased efficiency, decreased acquisition cost and increased awareness.

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