Research And Simulate On Combine Heat And Power Generation In Virtual Power Plants System

With the rapid development of the world,the renewable energy plays an important role in today's and future's life.The transformation process from a centralized to a decentralized power generation is the developing direction of energy market in the future.Connected with produced and used electricity and heating energy,moreover,we need to make sure the stable operation of virtual power plant is also an main assignment.This master thesis represents the calculation of energy demand which include electricity,domestic hot water and space heating demand for a single family house which dwell 4 person,110m2 located in Reutlingen,Germany.The calculation is acquired by guideline VDI4655.We calculated and analyzed some parameters of solar photovoltaic system,solar thermal system and micro CHP system,then selected the optimum capacity,output and installation parameters.Followed by simulating according to the software of PVsyst,Getsolar and CHP Simulation,energy production are analyzed.Moreover,the social and environmental benefits of each system are analyzed to build a virtual power plant solid foundation.The results showed that the electricity demand of this 4 person 110m2 single family house in Reutlingen is 7000 k Wh/year,and total heating demand which include 8250 k Wh for space heating and 2000 k Wh for domestic hot water is 10250 k Wh per year.The on-grid power system can satisfy the energy demand of 80.3%,due to the limit of usage area,solar thermal system can produce 3489 k Wh per year for heating.For CHP system,the heating demand can be satisfied and also produced 3203 k Wh electrical energy.Hence,according to reasonable choice for electricity and heating generation can optimize operated efficiency of virtual power plant,and protected the environment.