IT systems are gradually moving towards centralized management, and UPS power supplies will see six major development trends. With the development of information technology, electronic technology, and control technology, various advanced technologies have been widely used in the design, development and production process of UPS. As a high-tech product developed in response to the demand of the power market, lithium battery UPS power supply has attracted great attention from enterprises. The application of protection systems will be more in-depth. As IT systems gradually move toward centralized management, UPS technology will see the following six major development trends.

　　1. Greening

　　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 and filter circuit itself, but also compensate for the input power factor. The rectifier uses IGBT technology, which can increase the input power factor to close to 1, and the pollution to the power grid has been reduced to the level of a resistive load.

　　2. Redundant parallel technology

　　Through the development of new application technology, multi-module redundant parallel operation in the 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 hot-swappable for maintenance. , greatly improving 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.

　　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 UPS efficiency, dynamic response characteristics, and control accuracy.

　　4. Intelligent

　　Through the analysis and synthesis of various types of information, the intelligent system should not only complete the control function of the normal operation of the corresponding parts of the UPS, but also complete the real-time monitoring of the running UPS, analyze and process the important data information in the circuit, and draw various conclusions from it. Whether some circuits are working properly and other functions.

　　When a UPS failure occurs, it can conduct timely analysis based on the test results, diagnose the fault location, and provide treatment methods; take necessary emergency protection and control actions according to the needs of the site in a timely manner to prevent the expansion of the impact of the failure; complete the necessary It maintains itself and has the function of exchanging information. It can input information to the computer or obtain information from the networked machine at any time.

　　5. Digitization

　　UPS uses the latest digital signal controller (DSP) and digitized 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.

　　6. Integration

　　With the development of informatization, the application fields of power supply protection continue to expand and the requirements continue to increase. It is difficult for UPS to meet these needs alone. It must control the links involved in the entire power system. UPS starts from the initial equipment protection and system protection. Pure backup power technology has developed into today's integrated applications of information protection, intelligent management and overall computer room integration, and its connotation has expanded to power generation, power distribution, conversion, uninterruptible power supplies, computer rooms, power equipment, power cables, data cabling, and environmental monitoring. And system management, etc., it is no longer UPS in the original sense. UPS equipment is only the core component of the system.

　　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 the changes in this demand, for UPS manufacturers, especially domestic manufacturers, still There is much work to be done.

　　The development of electronic technology and computer technology has not only greatly improved the power performance of UPS, its network management can realize remote monitoring, digital power control technology has enabled the product to have customized functions, and the intelligent design has made it highly intelligent. Devices that are monitorable, controllable and adaptive.

　　UPS power supply plays an increasingly important role in various fields and is widely used in: information industry, IT industry, transportation, financial industry, industrial equipment, communication base stations, data centers, energy storage and other fields. The technological development level of UPS power supply is also constantly improving.

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