混合储能分布式能源系统容量及控制策略分析

2018 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE) Pub Date : 2018-05-01 DOI:10.1109/ICSGCE.2018.8556829

Shili Lin, Changru Yang, Wenji Song, Z. Feng

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引用次数: 12

摘要

为了提高分布式能源系统(DES)中冷热电联产系统(CCHP)的运行效率，本文提出将电池储能系统与蓄热系统相结合的混合储能技术应用于光伏发电(PV)分布式能源系统(DES)。根据混合储能系统中燃气轮机、光伏系统等设备的数学模型，首先在MATLAB中建立了混合储能系统的能量流模型，确定了混合储能系统的边界。此外，通过研究HESS的调节效果，提出并改进了基于功率负荷的控制策略，并将其应用于包含HESS和PV的新型DES中。最后，通过实例分析，比较了传统DES和新型DES的热电联产负荷率和运行效率。结果表明，HESS可以减少热电联产的配置容量，大大提高热电联产的运行效率和整个系统的能源利用效率。

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Analysis of Capacity and Control Strategy for Distributed Energy System with Hybrid Energy Storage System

In order to improve the operation efficiency of the combined cooling heating and power system (CCHP) in distributed energy system (DES), the hybrid energy storage technology combining battery energy storage system and heat storage system is proposed in this paper to be applied to DES with photovoltaic electric (PV). According to the mathematical models of gas turbine, PV system and other devices in DES, the energy flow model of the DES is first established in MATLAB and the boundary of the hybrid energy storage system (HESS) is determined. Moreover, the Power-Load-based control strategy is carried out and improved by researching the regulation effect of HESS and applied to the new DES which includes HESS and PV. Finally, the actual examples are analyzed to compare the load rate and running efficiency of the CCHP between traditional DES and the new DES. The results show that HESS could reduce the configuration capacity of CCHP and greatly improves its operation efficiency as well as the energy utilization efficiency of the overall system.

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2018 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)

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