Demand Side Management of Residential Isolated Microgrid to Minimize Battery Capacity and Operation Time

نوع: Type: thesis

مقطع: Segment: masters

عنوان: Title: Demand Side Management of Residential Isolated Microgrid to Minimize Battery Capacity and Operation Time

ارائه دهنده: Provider: Seyede paridokht hosseini

اساتید راهنما: Supervisors: Dr saleh razini

اساتید مشاور: Advisory Professors:

اساتید ممتحن یا داور: Examining professors or referees: Dr Moradi, Dr Kalantarnia

زمان و تاریخ ارائه: Time and date of presentation: 2025

مکان ارائه: Place of presentation: 33

چکیده: Abstract: The use of demand-side energy management has received more attention due to the dependence of electrical energy and the increase in demand. Demand-side management can improve the electricity consumption pattern and optimize and coordinate it with the network conditions. This issue becomes more important in isolated microgrids because in isolated networks, there is no support from the network side and we are also faced with the issue of resource limitations, so simultaneous management of demand and generation should be done based on this issue. Electricity supply in isolated microgrids is only possible by deploying local generation resources and on-site storage facilities, but since storage devices have disadvantages and challenges such as: being expensive, difficult to maintain, difficult to control, etc., reducing the number of these storage devices or increasing their operational life will improve the economic and technical conditions of the system.In addition to the economic benefits it provides to the system, the use of energy management strategies can be an answer to the challenges of using large storage units. A strategy that can be effective in the case of isolated networks is the flexible load strategy, because demand must adapt to the fact that local resources are renewable and variable. This strategy can also serve the purpose of reducing the capacity of storage units. The system studied in this study is a residential microgrid system in which the demand side management issue is analyzed and its results are examined. The problem model is in the form of an optimization model with the aim of reducing the overall costs of the system by considering the flexible load strategy. Also, an attempt has been made to limit the capacity and number of storage units.In addition, in this study, reducing battery utilization is also important for us. Since the battery life depends on the number of times it is charged and discharged, by using the battery less, we try to increase the life of the storage system. The results of the study have shown that flexible demand is an effective complement to grid infrastructure and large-scale batteries that can balance supply and demand more efficiently and cost-effectively. Also, the smaller the battery capacity used in the grid, the less cost the grid will incur.Another result is that if the effect of battery depreciation is calculated in the system cost function, the battery will be depreciated by 58% in the last year of the study, while if the effect of depreciation is not considered in the objective function, this value will be 33%, which means a shorter battery life than in the previous case