Micro Power Energy Storage Capacity Of Optimizing The Allocation Of System Research

With the rapid development of economy, the fossil energy increasingly scarce and global climate warming, micro grid technology obtained the unprecedented attention in research field,as a set of effective form of renewable energy, micro power grid in the fossil energy alternative played an increasingly critical role. Energy storage is an important part of the micro grid, in micro network control, micro source fluctuation slow, power quality compensation, emergency power supply and so on to provide important technical role. Due to the current energy storage cost is higher and difficult to meet the demand of micro network, in the optimal allocation of micro grid how to reasonable use of various kinds of micro source, how to coordinate the load distribution between the micro grid, how best to optimize the energy storage device configuration, how to quantify the micro grid energy storage system capacity configuration has important practical significance.Micro-grid internal energy storage system can effectively improve the power output characteristics of micro-power, improve the stability of the micro-grid renewable energy power generation unit, and can provide short-term power supply to the micro-grid, but the energy storage device is expensive, how reasonable Select the rated capacity of energy storage is to protect the micro-grid safe and economical operation of the important prerequisite.In this paper, we study the micro grid energy storage system capacity of multi-objective optimization configuration problems. First analyzes the micro grid operation mode of the micro source and stochastic programming theory, second quantitative configuration for traditional energy storage system capacity science and traditional multi-objective algorithm solution set of the single, the problem of conflict between the objective function, putting forward based on the Pareto optimal solution micro grid energy storage system capacity,the mathematical model of I multi-objective optimization configuration, optimal power balance, minimum renewable energy fluctuation, the lowest cost of investment for the target model, from power limiter, the angle of the energy storage system and charging management analyzes the micro grid energy storage system configuration, the proposed method is verified by the simulation analysis can effectively balance between renewable energy and load match coefficient, effective implementation of micro grid energy storage capacity of quantitative scientific configuration, for the optimal allocation of micro grid energy storage system capacity to provide theoretical basis and practical basis.