Development and Optimization of Customized Hybrid Power Systems
Date Issued
2015
Date
2015
Author(s)
Chen, Han-Che
Abstract
This thesis develops a hybrid power model that includes PEMFC, secondary battery set, DC/DC converter, PV arrays, chemical hydrogen production system and DC/AC inverter. We can apply the developed hybrid model to estimate the system responses and effectively reduce the cost and time of system development. First, we built an experimental system that includes a 3kW PEMFC, 15Ah Li-Fe battery set, 1.32kW PV arrays and chemical hydrogen production system. The results showed that the hybrid system can provide sustaintable electricity. Second, we develop a hybrid power model by Matlab/SimPowerSystemTM, and tune model parameters based on experimental data. We further conduct several experiments for model verification, and show that the hybrid power model can successfully predict the system responses. Therefore, we can apply the developed power model for customized hybrid power systems for cost analysis and model optimization. The system cost consists of the initial cost of each components and the operating cost during the system operation period. Considering different loading requirements, we can modify the sizes of PV arrays and battery capacities to minimize system cost, and analyze the influence of different power management strategies. In addition, we consider hydrogen price and discuss its impacts on developing hybrid power systems. Because experimental verification of customized power systems can be very costly and time consuming, the developed hybrid system model can be applied to reduce the cost and time of developing customized power systems.
Subjects
PEMFC
solar cells
system optimization
cost analysis
SDGs
Type
thesis
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