Analysis and Evaluation of Flexible Operations of Distributed Energy Systems in Grid-interactive Japanese Zero Energy Houses
The development of zero energy buildings is an important approach to achieving early the goal of carbon peaking and carbon neutrality in the building.However,the energy mismatch between on-site generation and consumption challenges energy system operation and management.In this study,different energy flexibility operation scenarios are analyzed based on measured energy system operation effects in actual Japanese zero-energy houses,mainly including coupled operation modes of photovoltaic power generation systems and battery/heat pump water heater systems.Different indicators are used to assess the consumption potential and economics of PV production.In comparison with the measured scenarios,the simulation results show that on-site PV consumption ratio is greatly improved,grid import is reduced during periods of high electricity prices,energy conversion and load shifting capacity are improved,and friendly interaction with the grid leads to significant economic improvements.A single energy regulation optimization strategy is limited in increasing the local consumption of PV.Therefore,the coordinated integration of multiple flexibility resources is an effective approach for managing operations of zero energy buildings.
zero energy buildingsenergy flexibilitydistributed energy resourcesoperational optimizationdemand-side management
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NSTL
万方数据
