When choosing home appliances such as air conditioners, washing machines, refrigerators, etc., it is common to hear the terms fixed frequency and inverter. They represent different ways of working and performance characteristics of home appliances. This article will delve into the difference between fixed frequency and variable frequency.
Fixed frequency technology is the traditional way of working in home appliances, which uses a fixed power frequency (usually 50Hz) to control the speed of the motor. In home appliances such as air conditioners and washing machines, fixed-frequency compressors or motors usually have only two states: running at full speed or stopping.
Simple and reliable: The fixed frequency technology has a simple working principle and a relatively simple circuit structure, so it has high reliability and stability.
High energy consumption: Because the fixed-frequency motor can only work at full speed or stop, it cannot be adjusted according to the load size, so the energy consumption is high.
Inverter technology is an advanced way of working home appliances, which controls the speed of the motor by adjusting the frequency of the power supply. In home appliances such as inverter air conditioners and inverter washing machines, the motor can adjust the speed in real time according to the load size to achieve the purpose of energy saving and stable operation.
High efficiency and energy saving: Since the inverter motor can adjust the speed in real time according to the load size, it has higher energy efficiency than fixed frequency technology, which can effectively save energy.
Stable operation: The frequency conversion technology automatically adjusts according to the load size to keep the equipment running stable and prolong the life.
Higher cost: Compared with fixed frequency technology, the circuit structure and control system of frequency conversion technology are complex and the cost is higher.
Compared with fixed-frequency technology, inverter technology has a higher energy efficiency ratio, and can adjust the speed in real time according to the load size to achieve energy saving effect.
Frequency conversion technology can automatically adjust the speed according to the load size, keep the equipment running stably, and prolong the service life; However, the fixed-frequency technology can only work at full speed or stop, and the operation stability is poor.
Due to the complex circuit structure and control system of frequency conversion technology, the cost is high; The fixed-frequency technology works on a simple principle and is relatively low-cost.
Fixed frequency technology: It is suitable for scenarios with low energy requirements and limited budgets, such as home appliances such as air conditioners and washing machines that are not frequently used in households.
Inverter technology: It is suitable for scenarios that pursue energy-saving and stable operation, such as air conditioners, washing machines and other household appliances that are used all year round.
To sum up, fixed frequency and inverter technologies represent the traditional and advanced ways of working home appliances, respectively. Inverter technology has a higher energy efficiency ratio and better operational stability, but it is also more costly; Although the cost of fixed-frequency technology is low, the energy consumption is relatively high and the operation stability is poor. When choosing home appliances, you should choose fixed frequency or inverter technology according to your own needs, budget and usage scenarios to achieve the best energy saving effect and user experience.