With the application and development of IT technology, how will the trend of rack-mounted UPS change? The IT industry has always been a "big demander" in the job market, and its development prospects and market importance have always been good. With the rapid development and management of the IT Internet, it has driven In order to meet the needs of the rack-mounted UPS industry, the application of rack-mounted UPS is more in-depth and extensive. So, what trends will rack-mounted UPS present in technology?

　　The three basic functions of UPS power supply: voltage stabilization, filtering, and uninterruptibility. When the mains power is supplied, it functions as a voltage regulator and filter to eliminate or weaken the interference of the mains power and ensure the normal operation of the equipment; when the mains power is interrupted, it can also use its DC power supply part (battery) to The DC power provided by the power bank, diesel generator, etc.) is converted into perfect AC power for the load. The switching from the mains power supply to the battery power supply generally takes 0 time, so that the load equipment can keep running without feeling any changes, which is truly This ensures uninterrupted operation of the equipment.

　　With the development of information technology, electronic technology, and control technology, the following technological changes will occur in rack-mounted UPS.

　　1. Intelligence

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　　Through the analysis and synthesis of various types of information, the rack-mounted UPS intelligent system not only completes the control function of the normal operation of the corresponding parts of the UPS, but also completes real-time monitoring of the running UPS and analyzes and processes important data information in the circuit. From this, it can be concluded whether each part of the circuit is working normally and other functions; when the UPS fails, it can be analyzed in a timely manner based on the detection results, diagnose the fault location, and provide processing methods; and take necessary emergency protection control actions according to the needs of the site in a timely manner. , to prevent the expansion of the impact of the fault; complete necessary self-maintenance, have the function of exchanging information, and can input information to the computer or obtain information from the networked machine at any time.

　　2. Digitization

　　The rack-mounted UPS uses the latest digital signal controller (DSP) and digital Hall sensor devices to achieve 100% digital operation of the UPS system. A multiple microprocessor redundant system is also used, using multiple microprocessors with independent power supplies to control the rectifier, inverter and internal static bypass, thereby improving the digitalization and reliability of the system.

　　3. High frequency

　　The power switch of the first generation UPS is a thyristor, the second generation is a high-power transistor or field effect transistor, and the third generation is an IGBT (insulated gate bipolar transistor). The switching speed of high-power transistors or field-effect transistors is an order of magnitude higher than that of thyristors, and the current capacity and speed of IGBT power devices are much larger and faster than that of high-power transistors or field-effect transistors, which reduces the operating frequency of the power conversion circuit. up to 50kHz. The increase in the frequency of the conversion circuit greatly reduces the inductance, capacitance, noise, and volume used for filtering, and greatly improves the efficiency, dynamic response characteristics, and control accuracy of the rack-mounted UPS.

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　　4. Redundant parallel technology

　　Through the development of new application technology, multi-module redundant parallel operation in a rack-mounted UPS can be realized without the need for additional central control components. The load is evenly distributed. When a problem occurs in a certain module, the load is automatically transferred, and maintenance can be carried out. Electric hot plugging greatly improves the power supply reliability of a single UPS. In addition, the system composed of multiple UPS operates redundantly. If a single UPS fails, it will be shut down immediately, and other UPS systems will automatically bear the entire load without any impact on the load.

　　5. Green environmental protection

　　Rack-mounted UPS has become the mainstream of green, environmentally friendly and low-carbon products. The harmonic currents generated by various electrical equipment and power supply devices seriously pollute the power grid. With the introduction of various policies and regulations, the call for pollution-free green power supply devices is getting louder and louder. In addition to installing a high-efficiency input filter, the UPS should also adopt power factor correction technology at the input end of the power grid, which can not only eliminate the harmonic current generated by the rectifier filter circuit, but also compensate for the input power factor.

　　6. Integration

　　With the development of informatization, the application fields of power protection continue to expand and the requirements continue to increase. It is difficult for rack-mounted UPS to meet these requirements alone. It must control the links involved in the entire power system. UPS starts from the initial equipment protection and Pure backup power supply technology for system protection has developed into today's integrated applications of information protection, intelligent management and overall computer room integration.

　　Integrated integrated applications provide users with complete and effective power application solutions. This expansion direction adapts to the needs of information construction. However, in order to meet this change in demand, for UPS manufacturers, especially domestic manufacturers, still There is much work to be done.

　　7. Intelligent monitoring system

　　Rack-mounted UPS adopts intelligent monitoring system to transform rack-mounted UPS power supply into a truly intelligent device, which can not only identify potential problems, but also perform continuous strategic analysis, preventive maintenance, and the ability to remotely monitor equipment.

　　8. Networking

　　In the Internet age, there is also a need for "network UPS", which has larger power storage, can serve multiple computers or other peripherals at the same time, and can achieve dynamic configuration between loads through some mechanism.

　　Rack-mounted UPS is a power supply equipment mainly used in integrated centralized power supply of security systems. It is an inevitable product for standardized management and centralized management of security systems. Energy storage rack-mounted UPS is widely used in communications, electric power, public security, fire protection, radio and television, finance, military, Internet and other industries. The equipment integrated with it includes: communication base stations, integrated power distribution cabinets, data centers, modular integration products etc.

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