UPS UPS classified by technology

UPS, as the backup power supply system of electronic precision instruments, was born for more than a century, and its development speed is amazing. In 1972, President Nixon visited China. A small UPS uninterruptible power supply (UPS) was given as a gift during the exchange, which was the first time that Chinese people came into contact with ups. In less than half a century, hardworking and intelligent Chinese have developed more competitive products of the same kind, making UPS equipment grow vigorously in China.

UPS UPS manufacturing technology has experienced three revolutionary changes. The first generation UPS power switch is thyristor, the second generation is high power transistor or field effect transistor, and the third generation is IGBT (insulated gate bipolar transistor). The switching speed of high-power transistor or FET is one order of magnitude higher than that of thyristor, and the current capacity and speed of IGBT power device are much larger and faster than that of high-power transistor or FET, which makes the working frequency of power conversion circuit as high as 50KHz. The new process devices and flexible switching technology are applied to solve the high frequency limitation caused by switching loss and realize the high frequency of UPS power supply. With the increase of the frequency of the converter circuit, the inductance, capacitance, noise and volume used for filtering are greatly reduced, and the efficiency, dynamic response characteristics and control accuracy of ups are greatly improved.

There is another technology that has to be mentioned in the history of UPS development, that is ups redundancy parallel technology. In an electronic equipment, we can centralize the control circuit as an independent pluggable module, or concentrate the power conversion part in a structure as a hot pluggable module. Similarly, in a power supply system with multiple devices, we can also treat each device as a module, in the case of redundant waste heat backup configuration In case of failure, it can also be repaired by hot swap. The UPS equipment of Burke has this powerful parallel function, which can realize eight high-power parallel operation at most. In the industry leading level. And the technology is quite mature. After two UPS redundant parallel connection, the total output capacity of the two UPS is greater than or equal to twice of the load capacity. When one of the ups fails, the other can bear all the load capacity and keep the system running normally. The one with fault can be repaired offline. The successful application of redundant parallel technology greatly reduces the failure rate of UPS equipment and ensures the safe and stable operation of the load.

Digitalization: digital control has become the mainstream of new UPS control technology development. Digital control technology includes data acquisition technology, signal processing technology, power management technology, network communication technology, computer hardware and software technology, which can realize the perfect combination of human and human power supply.

Intellectualization: it means that UPS is managed and adjusted automatically by microprocessor, such as automatically shutting down the host computer's operating system and its power supply, timing switch UPS itself, etc., and can transmit relevant signals to the operating system or network administrator through the network, so as to facilitate remote management. Realize intelligent operation.

Economy: the price is the most concerned problem when users choose UPS equipment. Ups with low cost and high performance will become the mainstream model in the market after a period of time. This type of model greatly saves the cost and is highly competitive in the market. It will become the new mainstream model of ups in the future.

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