Research On Optimal Allocation And Output Stabilization Strategy Of Distributed Generation

With the characteristics of renewable and clean energy,distributed generation is stepping on the stage under the background of the traditional energy transformation and the requirements of the ecological environment.The combination of the distributed generation and the traditional large power grid can play a lot of advantages,and it is the direction of the development of the power industry in the future.But the irrational distribution makes it impossible to reflect its value,and the intermittent distributed generation is random,which affects the power quality of the system even the safe and stable operation.At the same time,the high unit cost also produces huge resistance to its development.In order to promote the scientific development of distributed generation,it is of great significance to study all kinds of problems existing in distributed generation.First of all,the advantages of distributed generation are expounded.In the optimal configuration of distributed generation,a simple feeder is taken as an example to illustrate the changes of system losses before and after the access of the distributed generation.The probability model is used to reflect the characteristics of the randomness of the wind and solar power,the random flow calculation is carried out by the semi invariant method,and the two targets of the network loss and the node voltage index are analyzed under the different distribution of distributed generation.The effect proves the importance of reasonable allocation of distributed generation.For the problem of intermittent distributed power supply fluctuation taking the wind power as the representative,the hybrid energy storage system is used to suppress it.In the power allocation,in order to achieve the protection of both of them,the compensation power of the supercapacitor and the battery is properly transferred in the intense output fluctuation period.In addition,the model of chance constrained programming based on the average cost minimization is established to achieve economic performance while ensuring the stabilization effect.The simulation results show the effectiveness of the hybrid energy storage system to suppress the fluctuation of wind power output.In the economic analysis of the distributed generation in the form of microgrid,the composition and structure of the microgrid system are introduced.The cost benefit analysis method is used to establish the various costs and benefit models of the micro network based on the traditional generation as the reference value.The economic analysis of the direct connection of distributed generation and microgrid access,verified the comprehensive advantages of the distributed generation in the form of microgrid,and gave some effective suggestions for increasing the benefit of microgrid.This paper studies the problems of distributed generation,takes measures and means to make up for its defects,and deeply excavates its potential in the thinking of its shortcomings.As a fresh energy structure,distributed generation has a broad market.With the policy orientation of the country and the eagerness of the public,the prospect of distributed power is bright.If the technological bottleneck of the future distributed generator is broken through,it will set off a new energy revolution.