Analysis of energy consumption of telecommunications network and application of energy-saving techniques

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1 40 2 ( ) Vol.40 No Journal of Central South University (Science and Technology) Apr , 2 ( ) TN915 A (2009) Analysis of energy consumption of telecommunications network and application of energy-saving techniques JIANG Qing-quan 1, 2 (1. Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan , China; 2. Changsha Telecommunications and Technology Vocational College, Changsha , China) Abstract: Based on the characteristics and circumstance conditions of energy consumption of telecommunications network and according to the current situation of energy consumption of the communication equipment, power supply and base station, the energy-consumption distribution and energy-saving potential of the communications network were analyzed and the ways and measurements were put forward to save energy and reduce consumption. The fresh air energy-saving renovation plan in the communication equipment room and the comprehensive energy-saving solution for the mobile telecommunication base station were also proposed and designed. Qualitative comparative appraisal method was used to make scientific measurements and statistics of the practical energy-saving effect of the plan in the communications operation enterprises such as China Telecom and China Mobile. The experimental results show that if the communication operators can control and manage the energy consumption effectively, energy-saving techniques can be used and the energy-saving communications network can be designed which are based on informatization and precision management, and this is favorable for the energy saving, consumption reduction and sustainable development of the communications network and can guarantee the reliable and highly-effective operation of the communications network, so that capital and operational expenditure can be reduced. Key words: communications network; energy consumption; energy-saving (06JJ2011) (07YBB313) (1965 ) jqqhn@126.com

2 2 465 [1] GDP 87% 200 kw h kw h 50% 40% 10% [2] kw h 51% 46% 3% 50% % [3] PSTN S1240 EWSD ( 48 V) 2 [4] 1 1 Fig.1 Power distribution system of SPC (stored program control) switching equipment ATM/FR ( 48 V) IP UPS (220/380 V) ATM No.7 DDN PSTN NGN DDN IP

3 466 ( ) V ( ) 3G UPS [5] ( 48 V) 2 [6] UPS UPS UPS ( ) UPS [7] UPS ~35 10%~90% B % 52% 47% [8] ATM

4 ~30 40%~65% [9 10] IDC NGN 3G 10 50% 25% [11] 1.4.3,, [12] ( ) (PID) 2.1.2, [13] [14 15] db

5 468 ( ) 40 20% 1~ a. b. c a. b. 30% a. b. c. d ( ) ( ) [16] BTS 3G 2 Fig.2 Architecture of comprehensive energy-saving system of mobile base station a.

6 2 469 b. c. 2.4 η 1 = E/E 1 100% η 2 =( F F 2 )/F 1 100% η 1 E E 1 η 2 F F 1 F 2 (5 ) % 29% 31.8% 1 Table 1 Comparative analysis on energy saving data of telecommunications network /kw /kw /kw / % % 3 a. b. 30% c. 35% d. [1]. [J]., 2008(7): WANG Ping. Thinking on the energy saving and consumption reduction in telecom operation[j]. Telecommunications Technology, 2008(7): [2]. [J]., 2008(8): LI Sen. Application of ventilation energy-saving system in the telecom equipment room[j]. Telecommunications Technology, 2008(8): [3]. [J]., 2008(5): FAN Yao-dong. Research on the energy conservation and emission reduction index system in telecom operation industry[j]. Telecommunications Science, 2008(5): [4]. [M]. :, JIANG Qing-quan. Telecommunications exchange equipment [M]. Beijing: Beijing University of Posts and Telecommunications Press, [5]. [J]., 2008(8):

7 470 ( ) 40 YANG Gen-fa. Energy-saving analysis in data centre equipment room[j]. Telecommunications Technology, 2008(8): [6],,,. [J]., 2006, 19(6): LI Xiao-ming, KONG Xiang-ru, LIU Miao-qing, et al. Construction of energy-saving telecom operation network[j]. Telecom Engineering Technics and Standardization, 2006, 19(6): [7]., [J]., 2008(5): CHE Yong. Improving power supply quality and saving cost for the enterprise[j]. Telecommunications Technology, 2008(5): [8]. [J]., 2008(2): HUANG Cheng-long. Theory and practice on energy-saving control in mobile communication base station[j]. Journal of Xi an Polytechnic University, 2008(2): [9] YDN , [S]. YDN , Total technical specifications of telephone exchange equipment[s]. [10] YD/T , ATM [S]. YD/T , Technical specifications of ATM switch[s]. [11]. [J]., 2006, 19(6): WANG Ze. Research and feasibility analysis on energy saving in telecommunications equipment room[j]. Telecom Engineering Technics and Standardization, 2006, 19(6): [12]. [J]., 2008(8): ZHAO Xiao-feng. Application of natural coldness resource refrigeration in telecommunications equipment room[j]. Telecommunications Technology, 2008(8): [13]. [J]., 2008(2): DONG Feng. Discussion on the energy-saving measures of high-performance special air-conditioner used in computer room[j]. Telecommunications Technology, 2008(2): [14]. [J]., 2008(8): LI Chang-yun. Energy-saving measures on isolated heat exchange by using natural coldness resource[j]. Telecommunications Technology, 2008(8): [15],. [J]., 2008(5): PENG Jian-wei, LIU Xue-hong. Exploration on air conditioner design, energy saving and consumption reduction in data room[j]. Telecom Power Technologies, 2008(5): [16]. [J]., 2006, 19(6): LIU Tao. Comprehensive energy saving of mobile telecommunication base station[j]. Telecom Engineering Technics and Standardization, 2006, 19(6):

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