Communication power in the overall development of our country how? What are the problems to be solved? What are the latest relevant technology advances? Stage communication power technology going? Common concern for the readers of these topics, the reporter went to China before the opening of the communications equipment technology exhibition, through personal experience and communication, understand the communication power supply hot technology at the present stage of progress and the situation of production.
Communication technology rapidly to the diversification of power
Communication network development through the exchange of air separation from the simulation-based T DM Exchange network, the number of hours long process of development. The new century, NGN Research and commercial applications is becoming hot. Accordingly, also requires the rapid development of communication power supply technology to cope with network evolution. This reporter learned that, as a basis for the application of communication power, its technology and changes in different speed and other products, such as it is not the core network, access network and terminal equipment, as rapid development, but this does not mean stagnation Power Sources or old-fashioned one. In the exhibition scene, we see Emerson, power source, Section Chinese technology companies have demonstrated the power of diversification of products or even complete power solution, from which we can clearly see, the whole power supply technology toward multi-communication technology development. In specific products, the company exhibited to the audience AC / DC switching power supply, DC / DC switching power supply, UPS, AC variable frequency power supply, sine wave inverters and other new products, according to experts, in addition , electric operating power, high frequency rectifier inverter Welding Power, high-power high-frequency high-voltage DC power supply, chemical supply, and the green line with the trend of development Illumination Power, wind and solar power supply, also has been into the spotlight. Corresponding to these products, high frequency conversion technology, all resonant high frequency soft switch technology, power conversion technology and other advanced technologies are emerging, the emergence of these technologies to ensure the smooth flow of the entire communication network has made a great contribution.
High efficiency is the inevitable trend of development of communication power
Continuous research and development of new high-performance devices, the emergence and application, promote the upgrading of power products, making the power of the switching frequency is increasing. At present, power supply switching frequency up to 300kHz ~ 400kHz level, and small power supply has been achieved 1MHz switching frequency, and increased power density, which progress and development of power technology plays an important supporting role. In addition, the insulated gate bipolar transistor (IGBT), power field-effect transistor (MOSFET), a new magnetic materials and Transformer The application of new technologies also greatly enhanced power efficiency.
During the visit, the reporter learned that soft-switch technology, the leading issue of quasi-resonant technology research has become mature and stable, which is typical resonant transformation phase resonant, zero-switching PWM, zero-transition PWM, etc. new theory of topology, their focus is to reduce the hard-switching mode, the last opening of the power device, the switching devices during the switch voltage up / down and current up / down wave generated by wear and tear and noise overlap, and zero-voltage / zero current switching, reduce losses and improve power systems stability and efficiency. In short, the road towards the development of high efficiency not only in the enterprise, Operation The vital interests of the business, but also in response to a national call to build a conservation-oriented society.
Communications network power management to move
With the increasing popularity of Internet technology and the continuous development of information processing, communication systems from the previous stand-alone or small local systems development Tai LAN systems, WAN systems, so support the protection of telecommunications terminal equipment, the Internet aspects of electronic switch power supply must have the data processing and communications capabilities, including technical personnel can make the network at any time Monitor Power equipment operation status and the technical parameters of the smart user interface, with all kinds of protection, alarm and data information storage, processing, printing and other functions, and enables network technicians to exchange or preparation time switches Electricity Source of the remote switching machine function.
Show, we see the Emerson Network Power Monitoring System, which applies to all kinds of power stations for Telecommunication equipment and its environment in real-time monitoring and unified management. On the power management problem, the experts said, with the power management system, monitoring continuous improvement, we can achieve under different circumstances and flexible resource allocation, unified management, in order to ensure Telecommunications System reliability.
Communication to achieve full digital power control
At the show site, we also see a digital power control technologies. On-site technical staff to reporters about the construction of communication networks in China have their own coin, and in many areas such as natural environment and are relatively backward economy, communications facilities in those areas in which complex, sparsely populated, traffic inconvenience, no doubt increase of communication facilities, including maintenance of power systems communication difficulties, in this case, digital technology on traditional simulation technology to show the advantages can not be achieved.
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