Analysis And Design Of The Micro Gird System Based On Compound New Energy

As an independent controllable unit,microgrid consisting of the distributed power system,energy storage,load and protecting device is a hybrid power supply system.Microgrid can implement distributed power access and ensure power quality at a higher level rely on its own regulatory capacity.Microgrid can meet the requirements of the system load,and meanwhile maintain the grid voltage and frequency stability of connection points.At present,the microgrid is a single new energy access project,which has not yet taken into account the applicability of the general users and multi-regional multi-energy forms.Microgrid system which includes a small gas turbine Combined Cooling Heating and Power can supply multi energy,but it will make the renewable energy power hard to consume.This paper focuses on how to maximize the use of renewable energy and achieve a comprehensive energy economic supply.This paper adopts the planning method of energy flow network to design a micro network architecture,including the photovoltaic,fan,solar thermal utilization,geothermal evelopment cool storage and heat storage.This paper elaborates the hierarchical control logic of the energy management system for the micro network architecture.This paper establishes a mathematical model for the optimization scheduling of composite microgrid.The optimal targets of the mathematical model include the optimal economic and environmental protection.Constraints include the running state,the power balance,and the constraints of the state of the device.By choosing the real project that I personally participated in as an exemplification.The architecture of this project will set up a prototype of the "power network as a hub,coupled with multiple types of energy".Electric-cold-hot-water multi-energy sources complement each other,and the source-net-storage-hodo carrier is coordinated.Explore the path of energy Internet development "from the park to the region,from the region to the world"...