2020-10-13
High-frequency UPS is also known as modular high-frequency UPS power supply, this kind of UPS is mainly used to use the drawer type high intelligent modular design, can increase or decrease the cabinet UPS module to meet the power output input and reliability requirements, has great flexibility, to achieve the best cost performance. With the function of easy plugging, it can not only meet the requirements of power output and reliability by increasing or decreasing the modules in the cabinet, but also can carry out online maintenance as long as redundancy allows, realizing zero maintenance time. It is a milestone in the technology revolution of UPS industry by adopting full-number control technology, which centralizes the advanced technology achievements in the field of power electronics and automatic control.
Advanced two-stage and three-stage charging method is adopted for the module HF machine. In the first stage, large current constant current charging is adopted to quickly recharge about 90% power. The second stage is pulsating charging, which can equalize the characteristics of the battery and fully fill the battery; The third stage is to maintain constant voltage to ensure no loss of power. In this way, the goal of fast charging and extended battery life can be well balanced, saving battery cost for users.
The advanced wireless parallel control technology is adopted to reduce the single point of failure (even the fault of the parallel communication line can work normally in steady-state operation) and improve the reliability. Module UPS high frequency machine adopts modular design and easy plugging and unplugging function, which is composed of UPS module, communication module, distribution board and some optional parts plus the cabinet.
From the above comparison can clearly see that the power frequency UPS power is superior to the high-frequency machine in many aspects. For some important and critical parts with high reliability, the power protection scheme should also take power frequency machine as the first choice. Also because of this, now the frequency machine presents the trend of rising demand. In the harsh environment of power supply, power frequency UPS power supply provides more safety and reliable protection than high-frequency function. In some occasions, such as medical treatment, UPS is required to have an isolation device. Therefore, for industrial, medical, traffic and other applications, power frequency machine is a better choice. The choice of the two should be based on the user's different conditions, installation environment, load conditions and other trade-offs.