Communication IDC Room Power Supply System Study

21st century is the era of information technology, people’s lives are filled with a large amount of data, big data, data room to bring an inflatable increased speed the development of cloud computing. Power quality data room information related to data security. Currently, IDC (Internet Data Center) room is the mains power supply through the UPS rectifier, inverter power to the load of the link. The power supply needs to go through several power conversion, resulting in energy loss and the complex structure of the power supply system so that the failure rate is greatly increased.This paper describes the features of the current structure of the power supply, the use of UPS redundant power supply for the current IDC room supply, power supply current analysis of the defects in the reliability of power supply, the harmonic influence, expansion and so on. Secondly, it discusses the feasibility of IDC room server load DC power supply and other uses. Again, proposed the use of high voltage DC power supply (HVDC) IDC room new power supply, the power supply is also applied photovoltaic electricity as a direct complement to the energy supply. Finally, a brief introduction of the development trend of recent years IDC room supply mode.Paper focuses on the characteristics and working principle of high voltage DC power supply determine the AC/DC conversion, insulation test implementation. High-voltage DC power supply system rectifier space vector pulse width modulation method to achieve, to eliminate harmonic interference on the grid, the converter control section to increase the voltage loop and current loop, the AC side current waveform follows the voltage waveform. In this paper, unbalanced bridge method to achieve positive and negative bus insulation inspection, so can accurately and efficiently detect the insulation resistance value of the DC bus, and can accurately locate the branch bus insulation failure. Conducive to high voltage DC power supply system to monitor the DC side of the insulation.New IDC room photovoltaic power supply system as a supplement to the mains supply energy, photovoltaic power generation in parallel with batteries, the connection can make full use of new energy power generation for the data room, but also solve the instability photovoltaic power quality shortcomings. A high voltage DC output voltagelevels and battery charge are, float voltage range, determine the number of the high-voltage DC battery cabinet configuration and design of the secondary wiring diagram of the power supply system.