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Home » Application » Status and Development of the UPS
Status and Development of the UPS
Status of UPS
After decades of development, the UPS technology has been changing with each passing day. The management system is also constantly improving with its functions becoming stronger and application scope further expanded.
Technology
The soft switch technologies defined in the broad sense, which are different from the traditional resonant mode ZUS and ZCS soft switch, have been adopted to reduce the switch consumption and improve the switch frequency. The soft switch is a damage-free buffer circuit, which can soften the switching process. Meanwhile, it has a simple circuit, requiring no additional resonant network. Therefore, the soft switch is low in cost. The efficient input filter and the active power factor calibrator can be added to the input terminal, and the series-parallel connection technology can be adopted to lower the distortion of the input current, reduce the pollution caused by UPS to the electric power, and turn the electric power supply into green power supply.
Digital control has become a mainstream of the new UPS control technology. This means that the digital processor, DSP, should be widely used to achieve full-microprocessing of the control circuit. Since the digital controller is high in precision and has a strong anti-interference power. It can easily realize detection of the UPS, fault diagnosis and separation, remote control and observation, parallel-connection and hot insertion of different sets of UPS, monitoring and management of accumulators. In other words, intervention of the computer can ensure intelligent management of the UPS so that the power can operate in an optimal state.
The accumulator constitutes the heart of the UPS. Currently, the UPS generally uses the maintenance-free sealed lead-acid accumulator. In order to lengthen the service life of the battery, a three-period battery management plan can be adopted, including constant-current equalizing current, float charge and natural discharge, to prevent over-charge and over-discharge. Currently, the battery management system with the micro-processor monitoring technology at the center has been introduced, which can observe the charging and discharging state of the battery, and provide dual protection for the battery charge and discharge.
Adoption of the redundant technology and hot heating technology
The intelligent UPS management system is adopted. The so-called intelligent UPS is to connect the traditional UPS with the hardware interface of the computer. The special design software is combined to provide double protection of the computer and the data, which can not only ensure basic functions of the UPS, but also detection, display and processing of all kinds of faults. Finally, the network monitoring management can be fully realized.
Function
Besides the voltage stabilization, frequency stabilization and uninterruptible power supply, the UPS is capable of self-control, external alarm, concentrated monitoring, environment monitoring, automatic switch, network connection, battery automatic compensation and detection, low-power-loss and direct parallel-series connection, and equal output of linear load and nonlinear load. Meanwhile, upon the parallel-connection, it can play the role of the power battery or the split battery.
Application
On the basis of the original UPS for commercial use, frequency-variable UPS and UPS for industrial use, the UPS for computer, cable TV, and personal handphone system has been developed. Therefore, the UPS has found wide applications in the field of finance, telecommunications, government, manufacturing, education and medical care.
Development trend
The market demand has promoted improvement of the UPS performance, and the technological progress has promoted ceaseless development of the UPS technology. Nowadays, the UPS is development in the direction of high frequency, redundant parallel connection, digitalization, increasing reliability, intelligence, growing greenness and economy.
After decades of development, the UPS technology has been changing with each passing day. The management system is also constantly improving with its functions becoming stronger and application scope further expanded.
Technology
The soft switch technologies defined in the broad sense, which are different from the traditional resonant mode ZUS and ZCS soft switch, have been adopted to reduce the switch consumption and improve the switch frequency. The soft switch is a damage-free buffer circuit, which can soften the switching process. Meanwhile, it has a simple circuit, requiring no additional resonant network. Therefore, the soft switch is low in cost. The efficient input filter and the active power factor calibrator can be added to the input terminal, and the series-parallel connection technology can be adopted to lower the distortion of the input current, reduce the pollution caused by UPS to the electric power, and turn the electric power supply into green power supply.
Digital control has become a mainstream of the new UPS control technology. This means that the digital processor, DSP, should be widely used to achieve full-microprocessing of the control circuit. Since the digital controller is high in precision and has a strong anti-interference power. It can easily realize detection of the UPS, fault diagnosis and separation, remote control and observation, parallel-connection and hot insertion of different sets of UPS, monitoring and management of accumulators. In other words, intervention of the computer can ensure intelligent management of the UPS so that the power can operate in an optimal state.
The accumulator constitutes the heart of the UPS. Currently, the UPS generally uses the maintenance-free sealed lead-acid accumulator. In order to lengthen the service life of the battery, a three-period battery management plan can be adopted, including constant-current equalizing current, float charge and natural discharge, to prevent over-charge and over-discharge. Currently, the battery management system with the micro-processor monitoring technology at the center has been introduced, which can observe the charging and discharging state of the battery, and provide dual protection for the battery charge and discharge.
Adoption of the redundant technology and hot heating technology
The intelligent UPS management system is adopted. The so-called intelligent UPS is to connect the traditional UPS with the hardware interface of the computer. The special design software is combined to provide double protection of the computer and the data, which can not only ensure basic functions of the UPS, but also detection, display and processing of all kinds of faults. Finally, the network monitoring management can be fully realized.
Function
Besides the voltage stabilization, frequency stabilization and uninterruptible power supply, the UPS is capable of self-control, external alarm, concentrated monitoring, environment monitoring, automatic switch, network connection, battery automatic compensation and detection, low-power-loss and direct parallel-series connection, and equal output of linear load and nonlinear load. Meanwhile, upon the parallel-connection, it can play the role of the power battery or the split battery.
Application
On the basis of the original UPS for commercial use, frequency-variable UPS and UPS for industrial use, the UPS for computer, cable TV, and personal handphone system has been developed. Therefore, the UPS has found wide applications in the field of finance, telecommunications, government, manufacturing, education and medical care.
Development trend
The market demand has promoted improvement of the UPS performance, and the technological progress has promoted ceaseless development of the UPS technology. Nowadays, the UPS is development in the direction of high frequency, redundant parallel connection, digitalization, increasing reliability, intelligence, growing greenness and economy.
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