研究目的
To develop an intelligent dynamic energy management system (I-DEMS) for a smart microgrid that optimizes energy dispatch to ensure reliability, self-sustainability, and environmental friendliness by maximizing the use of renewable energy sources and extending battery life.
研究成果
The developed I-DEMS successfully meets 100% of the critical load demand from renewable energy sources, improves energy dispatch to controllable loads, and extends battery life. The I-DEMS outperforms the conventional D-DEMS in terms of renewable energy utilization and controllable load satisfaction, demonstrating its potential for reliable, self-sustainable, and environmentally friendly microgrid operations.
研究不足
The study focuses on a specific microgrid configuration and may not account for all possible variations in renewable energy generation and load demands. The computational cost of the evolutionary strategy for dynamic optimization is noted as a potential area for improvement.
1:Experimental Design and Method Selection:
The study employs an evolutionary adaptive dynamic programming and reinforcement learning framework to develop the I-DEMS. The methodology includes the use of two neural networks for optimal control policy and cost-to-go function approximation.
2:Sample Selection and Data Sources:
The microgrid model includes hybrid energy sources (solar PV, wind generation, diesel generator, battery energy storage) and load profiles (critical and controllable loads). Data from the first day was used for development, and the second day's data for evaluation.
3:List of Experimental Equipment and Materials:
The microgrid components include a 40-kW solar PV generation, 30-kW wind generation, a 10-kW diesel generator, and a battery energy storage system.
4:Experimental Procedures and Operational Workflow:
The I-DEMS was developed using supervised learning to mimic the rule set of a decision tree-based DEMS (D-DEMS). The performance was evaluated under varying generation and load profiles and different battery conditions.
5:Data Analysis Methods:
The performance of I-DEMS was compared with D-DEMS using a developed performance index (PI) that evaluates renewable energy utilization and controllable load dispatch.
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