The variable frequency power supply can output pure sine waves, and the output frequency and voltage can be adjusted within a certain range, with stable frequency and stable voltage. More importantly, the starting current of the High-Frequency Power Supply is low and unaffected. It is located in the system and network, and has a significant energy-saving effect. It is an environmentally friendly power supply product with energy-saving and energy-saving effects. In fact, in addition to saving energy, the variable frequency power supply can also increase energy savings when adjusted to a specific load. Next, we will tell you how the variable frequency power supply can achieve energy saving, and under which loads can energy saving be more effective.
Reasons for using frequency power supply to save energy
1. Soft start braking function
The variable frequency power supply completes the soft start and braking functions, and can reduce the impact of the starting current. As the voltage gradually increases from zero to the rated voltage, the starting current of the FrequencyPowerSupply changes in an uncontrollable manner from the uncontrollable overload surge current during the startup process, and the starting current can be adjusted as needed. There is no impact torque during the entire engine startup process, but a smooth startup process reduces the impact and achieves energy saving.
2. Low slip rate operation
The frequency converter always requires low slip operation to reduce rotor loss. The slip rate is the ratio of the difference between the speed of the stator magnetic field and the speed of the rotor to the speed of the stator magnetic field. The smaller the slip, the faster the speed and the smaller the load, which can save energy.
3. The speed regulation loss is very small
The variable frequency power supply speed regulation system has low loss and high working efficiency. It runs smoothly and has high speed regulation efficiency. At low speed, the characteristic static shutdown rate is very high, and the relative stability is also very good. The starting current is low, there is no impact on the system or power grid, and the power saving effect is good. Energy saving can be achieved by using the speed regulation of the frequency converter and the technology of controlling the motor speed under light load conditions.
Electronic loads that achieve significant energy saving
1. Centrifugal fan
The torque of this equipment is proportional to the square of the speed, and the power is proportional to the cube of the speed. The variable frequency power supply adjusts the voltage and frequency of the output power supply by turning on and off the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor. This saves energy and speed. Needless to say, the speed can be adjusted to a constant speed using a regulating valve. If the output flow is reduced to 80% of the original flow under normal circumstances, its output can be reduced to 51.2%. From this, it can be seen that the energy-saving effect of this load use is very good.
2. Roots blower
When torque and speed are unrelated, energy can be saved by setting variable frequency. However, the effect is far less important than the former. If the speed of the fan motor drops to 80% of the original speed, the power will be 80% of the original speed.
The above explains how variable frequency power supply can achieve energy saving and which load parts can be combined to save more energy. The startup mode and operation mode of the inverter determine the excellent energy-saving effect of the frequency converter. We need to choose to buy a reliable quality variable frequency power supply and pay attention to the combination of power supply and load to make the energy saving effect more significant.
GUANGZHOU IDEALPLUSING INFORMATION TECHNOLOGY CO., LTD. is professionally committed to providing customers with suitable products, and also strives to provide customers with suitable power supply solutions and quotations, helping customers evaluate and choose the most suitable solutions, specializing in the production of High-Frequency Power Supply, DC power supply, AC power supply, adjustable power supply, DC converter, high voltage power supply and other product manufacturing and solution manufacturers, is a domestic power supply industry and test system core technology automation high-tech enterprise.
