Stability Analysis And Control Study Of Micro-grid With Data Center

With the advent of the "Internet +" era,a variety of data information on people’s lives and work has brought more and more important influence.Mass data information storage and processing are mostly through the data center,Therefore,the data information’s spurt of growth,making the data center is also toward the function of complex,high-speed and large-scale development,and this will inevitably lead to increasing data center energy consumption.In a micro-grid with a data center,due to the enormous energy consumption of the data center load,great pressure is put on the power supply of the micro-grid,what’s more,the micro-grids often contain a large number of new energy with intermittent characteristics,which further increases the risk of micro-grid instability.Therefore,it is necessary to study the stability and stability of micro-grid with data center.On the basis of clarifying the concept and basic mechanism of micro-grid,this paper further elucidates the three key technologies related to grid stability in micro-grid and analyzes the existing conventional micro power grid stability analysis and control research status.Then,the load characteristics and power supply characteristics of micro-grid with data center are studied.The key factors and stability control methods of micro-grid with data center are also pointed out.The data center as a large power load is analyzed.Because of data center have power flexible and adjustable characteristics,the data center is a typical demand response load.Finally,the influence of data center characteristic parameters(capacity and flexibility)and data center access location on the stability of micro-grid are studied.In order to validate the conclusion of the analysis,the MATPOWER power flow calculation tool was used to simulate and simulate the IEEE 14-node network and an actual 56-node network respectively.Will use the data center demand response load on the micro-grid stability control effect and the traditional micro-grid using energy storage system for micro-grid stability control effect comparison.The results show: In the micro-grid with data center,the micro-grid can be adjusted by the demand response load of the data center,which not only can realize the stable control of the micro-grid,but also has better stability effect than the traditional micro-grid using energy storage system under certain circumstances,and can improve the use of new energy in micro-grid efficiency,reduce micro-grid construction and operating costs.