0 Preface

Data center automated operation and maintenance management applied in many enterprises is the main driving force for improving overall management efficiency. Therefore, ensuring the continuous and stable function of data center automated operation and maintenance management is a key link. Therefore, ensuring the supply of data center operation and maintenance management The stability of the power distribution system and the application of advanced energy-saving measures will reduce costs for the overall development of the enterprise and improve the efficiency of operation and maintenance. It is a hot issue for research in the industry. This paper analyzes the many problems faced by the application of energy-saving measures in the power supply and distribution system, and proposes corresponding solutions to provide a reference for the energy-saving of the data center power supply and distribution system.

1 Current status of energy consumption of data center power supply systems

The power supply system of data center operation and maintenance management includes power supply system, auxiliary equipment and supporting equipment. Data center operation and maintenance management is advanced data management technology based on computer and information technology. Upgrade, the number of corresponding hardware facilities has also increased, which makes the demand for electricity rapidly increase. In addition, cities are areas with relatively high electricity consumption, and data centers account for a large proportion of electricity consumption. According to reliable data analysis, in many first-tier cities or areas where IDC (Internet Data Center, Internet Data Center) business activities are more frequent, the power consumption of data center operation and maintenance management accounts for 25% of the total power consumption, and even some areas have exceeded Fifty percent, such as Beijing.

In addition, there are many large-scale enterprises, and data center operation and maintenance management has been using UPS (Uninterruptible Power Supply, uninterruptible power supply) with high power consumption, which has increased the burden on data center energy consumption.

Energy-saving design of data center power system

At present, large-scale servers and minicomputers are often used in enterprise data centers, but the unstable power supply often affects the safety of the network during their use, so better configuration schemes have been developed for the power supply system. Comprehensive data center operation specifications divide the power supply and distribution system managed by data center operation and maintenance into high-voltage DC power supply and distribution systems and AC power supply and distribution systems.

High voltage DC power supply and distribution system

With the continuous optimization of data center operation and maintenance management, workers in the industry have worked through a large number of practices and data analysis, and concluded that the HVDC (High-Voltage Direct Current, high-voltage direct current) power supply and distribution system has high working efficiency and is suitable for current The energy-saving requirements for data centers at this stage have brought a new development situation for the energy-saving work of data centers. Because the battery of the HVDC power supply and distribution system is directly connected to the input of the server, no additional equipment or processing is required to achieve the powerful advantage of continuous and stable power supply, and the later maintenance of the expansion link is easier and easier to operate and is widely used The use of. The application of HVDC power supply and distribution system only has power loss in the line system and electricity, which effectively reduces the data value of PUE, improves the power supply efficiency of system operation, and promotes the progress of energy-saving technology application in data center power supply and distribution. For example, in 2016, the power supply efficiency of Tianjin Electric Power Company’s customer system was as high as 99.9% within 1 hour of power outage.

Modular AC system

In the use of UPS power supply and distribution systems, the power supply system is often interrupted due to the low load rate of the system, which causes great inconvenience to the overall data center operation and maintenance management. After research, it is found that by introducing the modular concept into the energy-saving transformation project of the UPS power supply and distribution system, it is helpful to improve the overall energy-saving optimization effect of the power supply and distribution system. The UPS power supply and distribution system is improved through modularization. The redundant power resources can ensure the normal operation of multiple devices at the same time. The power capacity can also be optimized according to the actual situation, so that the working efficiency and safety of the UPS power supply and distribution system are greatly improved. The key to increasing the degree is to effectively reduce the excessive use of energy and achieve the energy-saving purpose of the data center.