The Study Of Model And Plan On Microgrid Experiment System

Microgrid is a cluster of interconnected distributed generators, loads and intermediate storage units that cooperate with each other to be collectively treated by the grid as a controllable load or generator. Microgrid solve the single distributed power supply factors such as high cost, difficult control, making full use of distribute generation provides an effective mechanism. With the development of further research on the network, the network in the different characteristics of distribute generation, phyletic and various, compared with the traditional planning model, on the premise of meet the technical indicators, you also need to consider a variety of factors such as return on investment, environmental protection, energy saving and economic benefits of distributed power supply system uncertainty will certainly become the important factors that hinder its development. Based on the research of the micro simulation experiment system, can the various characteristics of micro-grid in-depth theoretical research and experimental research. Therefore, the study of micro network experiment system is of great significance.First of all, the article introduces a network experiment system of micro planning method, combined with the natural resources of the region, construction characteristics and the electricity load, etc., set up the project and equipment investment cost, operation and maintenance costs, fuel costs, environmental cost reduced micro network experiment system power optimized configuration model. Design of five kinds of solutions, from the installation cost and operation maintenance cost, fuel cost, total cost, the proportion of renewable energy, satisfy the load condition of five kinds of schemes were analyzed, it is concluded that the optimum planning scheme. Given the wind/light/diesel/fuel/storage capacity and micro network system design to implementation, according to the designed system is simulated, established the optimal configuration model is verified by the micro power grid of rationality.Secondly, in order to be able to the running characteristics of micro-grid into in-depth theoretical research and experimental research, using PSCAD structures containing wind/light/diesel/combustion/micro-grid simulation model of reservoir. When micro network running, outside the network voltage and frequency for reference, photovoltaic and fan using constant power control, diesel generator and fuel cell is not in use. Island is running, the battery with constant voltage and constant power control for micro network provides reference voltage and frequency. Realize the smooth switch networking and island.