Portable UPS power supply, the truth about future technology trends is
revealed. Nowadays, portable UPS power supply is widely used in various fields
because of its lightness, compactness, trolley case design, lightness to carry,
and easy transportation. Such as: outdoor office, outdoor photography, outdoor
construction, backup power supply, emergency rescue, etc.
Then, with the continuous development of technology and IT systems
gradually moving towards centralized management, enterprises will have more
in-depth application of portable UPS power protection systems. The future
technology trends of portable UPS will be disclosed step by step.
1. 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.
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2. Intelligence
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.
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. Redundant parallel technology
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Through the development of new application technology, multi-module
redundant parallel operation in portable 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 hot-plugged. Unplug, 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.
5. 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.
6. 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.
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