The heart of communication system: the power supply system

The communication industry is one of the important application scenarios of power supply. According to the report of China Information and Communication Network, the market share of communication power supply is as high as 35%. The communication power supply is the power supply that provides AC and DC power to the communication equipment, and is the energy guarantee for the entire communication network.
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Although the power supply only accounts for 2%-3% of the fixed asset investment of the communication system, the power supply quality and reliability of the power supply equipment directly affect the entire communication system and its quality. Once the power supply equipment fails, it will affect the operation of the communication system and cause relatively Because of the large economic loss and social impact, the power system is known as the “heart” of the communication operation system.
Communication equipment requires the power supply system to have high reliability, high stability, and high efficiency

Reliability: Continuous power supply must be guaranteed without interruption. Communication equipment powered by AC power supply should use uninterruptible power supply (UPS). In DC power supply system, a rectifier and battery parallel floating charge power supply mode should be used;
Stability: Communication equipment is very sensitive to voltage fluctuations, noise voltage, transient voltage, etc. The power supply voltage is required to be stable and cannot exceed the allowable range of variation. Communication equipment is generally powered by a stabilized power supply;
High efficiency: The communication power supply requires low heat loss and high power density, which is conducive to energy saving, reduced floor space, and reduced investment.
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The composition of communication power supply
The communication power supply system is composed of three parts: AC power supply system, DC power supply system and grounding system: AC power supply system consists of high-voltage power distribution station, step-down transformer, diesel generator, UPS and low-voltage power distribution panel. The AC power supply system has three types of AC The power supply is the mains supplied by the substation, the self-provided AC supplied by the diesel generator, and the backup AC supplied by the UPS; the DC power supply system is composed of a rectifier, a battery pack, a DC power distribution panel and related feeder lines, and is used for various communications The equipment provides uninterrupted DC power supply. After several years of development, the rectifier has become a switching power supply device; in order to improve communication quality and ensure communication equipment and personal safety, the AC and DC power supply systems of fixed communication stations must have good grounding devices.
Switching power supply Rectifier System is the core of power conversion of power system
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The rectifier component used in the communication power system is a kind of high-frequency switching power supply, usually composed of rectifier module, monitoring unit, AC power distribution, DC power distribution, step-down unit (when the input voltage is high), battery pack and related auxiliary Unit composition. The basic working principle of switching power supply is to use electronic switching devices (such as transistors, field effect transistors, thyristors, etc.) to pulse modulate the input voltage to achieve voltage conversion in AC/DC and DC/DC modes, and at the same time Adjustable output voltage and automatic voltage stabilization can be realized.

The communication power supply is the power supply that provides AC and DC power to the communication equipment, and is the energy guarantee for the entire communication network. Batteries are the core equipment to ensure the uninterrupted power supply of communication power. At present, valve-regulated sealed batteries account for the vast majority of the market for communication power batteries. With the construction of 5G base stations, the advantages of lithium iron phosphate batteries, such as high energy density, long service life, environmental protection, and high-current charging and discharging, are prominent, and are expected to gradually replace lead-acid batteries and increase the penetration rate in the 5G base station backup power supply market.
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Best Plus Power is a manufacturer and provider of dependable high efficiency power electronics, energy conversion systems and power supplies. Best Plus Power solutions include a complete line of high-efficiency rectifiers, inverters and DC power systems for mission critical applications. With over 10-Years experiences supporting customers in more than 60 countries, Best Plus Power is focused on bringing reliable power solutions to customers across all applications and environments, which specialize in Battery Chargers, Power Inverters, Power Supplies / Rectifiers, DC / DC Converters, Frequency Converters, and other Power supplies.
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