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SCIENCE CHINA Information Sciences, Volume 61, Issue 11: 110202(2018) https://doi.org/10.1007/s11432-018-9544-6

Synergistic optimal operation for a combined cooling, heating and power system with hybrid energy storage

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  • ReceivedMay 30, 2018
  • AcceptedJul 19, 2018
  • PublishedOct 18, 2018

Abstract

The inherent characteristics of renewable energy, such as highly random fluctuation and anti-peak, are essential issues that impede optimal design of a combined cooling, heating, and power (CCHP) system. Based on the hierarchical control framework and rolling optimization, this study presents a novel two level synergistic optimization operation strategy. The upper level, which considers the power generation unit( PGU) optimization and active storage operation, optimizes the day-ahead hourly generation schedules of each CCHP component. The lower level, with the results of the upper level, coordinate the power of energy storages in minute timescale. A case study shows the effectiveness of the above methods. The implementation of the study fundamentally improves the overall energy utilization degree and the ability for renewable accommodation to thereby provide a guiding principle for CCHP system operation.


Acknowledgment

This work was supported by Projects of International Cooperation and Exchanges Supported by National Natural Science Foundation of China (Grant No. 61320106011), National Natural Science Foundation of China (Grant Nos. 61573223, 61733010), and Fundamental Research Funds of Shandong University (Grant No. 2018JC032).


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