Telecom Power Energy
Communication power supply energy, though not of primary energy and energy-saving air-conditioning equipment, can significantly reduce energy consumption room, but the communication power supply room energy consumption as a part of their work not only need to reduce their power consumption, but also need to develop energy saving technology with the main equipment, maximizing reduces room energy consumption.
"Our main equipment annual increase of 15%, but electricity has been no change in the budget, or less than 50 million yuan every year." Complaints director of a land Fangyun Wei, points to the voice communication maintenance personnel.
Today, in charge of not only bears Fangyun Wei basic equipment maintenance, but also the financial cost control, part-time work - the protection of secure communication based on minimizing the operation and maintenance costs. Among them, operation and maintenance costs account for the largest proportion of electricity as an entry point to reduce costs through energy from the main equipment, air-conditioning energy consumption in various angles in-depth analysis, and strive to choose the best investment returns than the energy-saving products and programs, but in the face saving 30%, 50% of the master energy-saving products, good housekeeping operation and maintenance charge of not ignoring the power supply and other ancillary products for communications requirements of energy-saving technologies.
Profitable energy-saving power supply
For the communications room, the communications class power consumption is mainly switching power supply and UPS (uninterruptible power supply), their main function is to translate into electricity inside the computer room or data center equipment for voltage, filter out pollution and high-frequency interference radio, and play the role of voltage, in addition to UPS also has the power to protect the function room to prevent a sudden power failure affected the normal work of the data center to the detriment of high-precision equipment.
From the works of view, communication power consumption should be close to zero consumption, but a rich years of experience in operation and maintenance supervisor told reporters, as communication power in the work process, resulting in the loss of the electromagnetic conversion, filtering the energy consumption Therefore, the base station and the engine room, the communication power of the average electricity consumption of about 5% of the overall machine room power consumption to 10%, in particular the data center, power consuming a higher proportion of 1:00.
Comparison of main equipment and air conditioning, communications, energy supply is small, so some people think that energy conservation is not necessary to spend too much power in the communications effort. In fact compared to other, more communication power saving can play the advantages of input-output ratio.
ZTE power product line product director WANG Dong-xu his calculations, using energy-saving communication power supply products, enabling communication power saving of about 50% of the electricity to the base station, for example, if one day a power saving 2 to 3 degrees, one year is more than 1,000 degrees, more than 60 million base stations nationwide, is more than 600 million annual saving of electricity. Taken together the results of the power saving is very significant.
Second, different way to other energy-saving, energy-saving power products for the environment does not require, you can apply a large area across the country. Communication power supply unlike the new air system, the external application environment is very limited in the application of the new air system prior to the application environment needs to dust, humidity and other environmental parameters of a series of evaluation.
And comparing the main input devices, communication power supply energy is basically a year to recover costs, and modular power management, ease of expansion and to the power room expansion brought about the demand.
The most crucial is the main equipment with energy-saving technologies need to match the power, to avoid the equipment remaining in the main power supply links in the unprovoked wasteful. Can be said that communication with the power saving function of the effectiveness of icing on the cake.
High efficiency, modular paving the way for future development
Communication power saving technology revolves around communication power efficient, modular, current harmonic pollution control features under way.
Many industry experts have this consensus, "first of all need to focus on saving communication power to choose energy efficient products." Particularly applied to large data centers of large power requirements for higher efficiency. Currently, the industry claims to efficient energy-saving products Henduo, but declared energy efficient are fully loaded case Zaichan Pin, when Dianyuanchanpin Chu Yuban set O'clock, but large-scale Xia Xiang Xiao Shuai. Not conducive to energy conservation. Eaton Powerware power products marketing manager Zhang Xuewen that, UPS's full load efficiency of users, no real meaning, he said, as widespread adoption of parallel redundant systems, UPS design margin generally too large, 80% of the current application UPS with a single set of only 50% of actual or lighter, then a lot lighter and therefore even load half load efficiency, UPS is more meaningful to the users.
For large data centers use the UPS, operators for stability, security, telecommunications and other areas to consider only the choice of efficient UPS products. However, base stations and small data center power supply side, there are many alternative energy technologies, modular management is quite good power saving technology.
As an initial capacity of communication power and UPS design, taking into account the maximum load, battery charge capacity and backup capacity, resulting in actual operation in light load and the load is often ultra-light load conditions, this state, the efficiency of power conversion equipment, often lower, thereby increasing its own losses.
Modular Power Management's objective is to start from the engine room of the overall planning, centralized power supply system from the shift to decentralized power supply. As the concentration of power is difficult to avoid the multi-level power distribution, power supply link the more efficient the greater the loss; and scattered distribution, the nearest distribution, can effectively reduce the power loss.
To this end, ZTE made a "breathing" the concept of power management, by tracking changes in the load control power module of the open and sleep to make the system as the best Xiaoshuai point in the vicinity of the work of the power module of the backup method change from hot backup for the cold backup cold backup and a half, reduce in light load and ultra-light module running under load conditions. For the entire power system, the reduction of electricity use, saving electricity, improve operator TCO.
WANG Dong-xu, said the overall look from the communications room, "breathing" power management only in less than 10% efficiency on an issue, but in terms of power source with, lighter set to enhance the efficiency of 85% to about 92% efficient , power equipment, its energy is close to 50%.
200A power supply base station configured to, for example, the case of the four rectifier 50A composed of long-term work load does not exceed 40A of the work situation, with ZTE, "breathing" power management, power saving can be 3 to 4 degrees per day. The total power saving up to a year more than 1,000 degrees, assuming that price one yuan / kWh, then such a site could save over 1000 yuan a year. To communicate the power of life mostly in the 10 years, that is, the equipment throughout the life cycle, saving costs the equivalent of more than 80% of total equipment. The number of base stations for a single province, 15,000 points, the medium-sized operators provinces, the annual saving of electricity more than 15 million yuan.
In fact, ZTE's "breathing" Power management is a prominent advantage of the power module. By using modular power supply, communication power supply can adjust to meet the needs of the existing machine room equipment, to avoid the occurrence of waste. However, modular technology enables communication failure rate increases, though still within reasonable limits, but for the core network and large data centers, the have to be used with caution.
Hsueh-Wen Chang believes that the development of large-scale power module is an inevitable trend, although not currently used widely, but believed that with the technology, continuously improving the stability of large data centers can use the modular power supply.
Be more diversified power structure
Master energy-saving technology innovation, communication power supply must evolve accordingly. To distribution of the base station, for example, although mobile devices is not widely distributed base station applications, but mobile operators have indeed become more and more attention to it high, annual mobile operators are expanding distributed base station Jicai acounts.
Distributed base station to BBU and RRU separation, loss of the previous antenna amplifier circuit to widening losses, reasonable choice of wire and cable pull distance, then if the power supply is also used in the previous model, it will increase the cable length and layout, which requires in addition to traditional computer room power, should also have no air-conditioned environment can be used for indoor coverage, and direct installation of power supply in the open air outdoor power system.
Currently, China Mobile base stations being without air conditioning test, in addition to the main equipment and some equipment, the need to adapt to high temperatures, the communication power supply is also required to adapt to higher temperatures with the energy saving. Energy supply structure and application environment need to be more diversified needs of different applications to meet the installation, distribution and other various needs.
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