Online dual conversion Uninterruptible Power Supply (UPS) is currently the most common type of UPS, commonly used in critical scenarios that require high reliability and uninterrupted power supply. Compared with traditional backup UPS, the design of online dual conversion UPS is more complex, but it can provide more stable and high-quality power output.

A. Main features:

1. Dual conversion structure: Online dual conversion Uninterruptible Power Supply (UPS), the input AC power is first converted to DC power through a rectifier, and then converted back to AC power through an inverter to provide to the load. Unlike the backup design, the load is always powered by the inverter instead of directly obtaining electricity from the AC power source.

2. Seamless switching: Since the inverter always supplies power to the load, even if the input power fails, the power supply will not be interrupted. The battery is continuously charged with the help of a rectifier. Once there is a problem with the main power supply, the UPS can seamlessly switch to battery powered mode without any conversion time.

3. Continuous power supply: This design ensures the continuity and stability of power supply, eliminating the impact of power fluctuations or momentary power outages. It provides very ideal power output, suitable for scenarios with extremely high power requirements.

4. Operation of rectifier and inverter: Throughout the entire power supply process, the rectifier and inverter work together to convert all the power of the load, allowing the UPS to provide noise free power output while eliminating fluctuations and instability in input voltage.

B. Advantages:

1. High quality power output: Online dual conversion Uninterruptible Power Supply (UPS) can ensure that the load always receives pure and stable power, avoiding equipment damage or shutdown caused by input power fluctuations or unstable voltage.

2. Uninterrupted switching: In case of input power failure, there is no need to wait for switching, and the power supply is continuous without interruption. It is very suitable for equipment that requires extremely high power supply stability, such as data centers, medical facilities, etc.

3. Full time protection: As the power output always passes through the inverter, the system provides continuous power protection, ensuring stability even under mains conditions.

C. Disadvantages:

1. Efficiency and heat generation: Due to the constant operation of rectifiers and inverters, the efficiency of online dual conversion uninterruptible power supplies (UPS) is relatively low and generates a large amount of heat, which requires high cooling requirements for the equipment.

2. Reliability: Although its design brings excellent power supply performance, the continuous operation of power components may reduce the reliability of the system and increase the probability of failure.

3. Grid interference: The non-linear input current of large battery chargers may cause interference to the power supply system of buildings, and even affect backup generators, leading to malfunctions.

Online dual conversion Uninterruptible Power Supply (UPS) is an ideal choice for providing high reliability and high-quality power output, especially suitable for applications with strict power requirements. Although the continuous operation of its power components may affect reliability and increase heat generation, its uninterrupted switching and stable power protection performance make it important in critical power supply applications.

D. Application:

Online dual conversion UPS is widely used in scenarios that require high power continuity and stability, as it can provide uninterrupted power protection and filter out fluctuations and instability in the power supply, ensuring continuous and stable operation of the equipment. The following are common application scenarios:

1. Data Center:

Requirement: The servers and storage devices in the data center require 24/7 power support, and any power fluctuations or interruptions may result in data loss or system failure.

Application: Online dual conversion UPS can ensure seamless switching of data centers to backup power sources in case of power outages, avoiding any impact on data processing, storage, and communication, and ensuring the normal operation of data centers.

2. Medical facilities:

Requirement: Life support systems, surgical equipment, and diagnostic equipment in hospitals and clinics are highly dependent on stable electricity, and any power interruption can have a serious impact on patient health.

Application: Online dual conversion UPS can provide continuous high-quality power protection for medical equipment, ensuring that critical medical equipment can continue to operate in the event of power fluctuations or power outages, ensuring patient safety.

3. Financial institutions:

Requirement: Banks, securities firms, and other financial institutions rely on a large number of real-time trading and data processing systems, and any power outage or power failure may result in business interruption and significant economic losses.

Application: Online dual conversion UPS can ensure the continuous operation of financial equipment such as transaction servers and ATM machines, avoiding business stagnation or data loss caused by power outages.

4. Communication industry:

Requirement: Communication base stations, network switches, routers and other equipment have very high requirements for power continuity. Power outages can cause network communication interruptions, affecting user experience and normal business operations.

Application: Online dual conversion UPS can ensure that communication equipment is not affected in the event of power fluctuations or interruptions, ensuring the normal operation of communication networks.

5. Industrial automation:

Requirement: Automated production lines and control systems have strict requirements for the stability and continuity of electricity. Power outages or power fluctuations can cause production interruptions, equipment damage, and even safety accidents.

Application: Online dual conversion UPS can provide reliable power protection for industrial automation equipment, ensuring that the equipment can continue to operate in the event of power failures, reducing production downtime and equipment failures.

6. Government and Public Safety:

Requirement: Public safety departments such as police stations, fire stations, and emergency command centers rely on electronic devices for real-time monitoring and command scheduling. Any power outage will affect emergency response capabilities.

Application: Online dual conversion UPS can provide uninterrupted power support for these devices, ensuring that emergency response systems can still operate normally in the event of power outages and safeguarding public safety.

7. Research Laboratory:

Requirement: Experimental equipment in scientific research institutions requires extremely high stability of electricity, and power outages may lead to experimental failure or equipment damage.

Application: The online dual conversion UPS can provide stable power support for precision equipment in the laboratory, ensuring the smooth progress of the experimental process.

8. Broadcasting and Media:

Requirement: Media institutions such as television stations and radio stations need to ensure the power stability of their equipment during program recording and live streaming, in order to avoid signal interruption caused by power outages.

Application: The online dual conversion UPS can provide stable power for cameras, recording equipment, broadcasting transmission equipment, etc., ensuring the normal broadcast of programs.

9. Traffic management system:

Requirement: Transportation systems such as airports, railways, and subways rely on automated control systems to manage the operation of vehicles and personnel. Any power outage can lead to serious traffic chaos.

Application: Online dual conversion UPS provides continuous power for these control systems, ensuring safe and orderly operation of the transportation system.

Online dual conversion UPS, with its seamless power switching and high stability, is suitable for various critical application scenarios that require extremely high power.