Li-SC HESS功率协调分配的PCH强跟踪控制策略

发布时间：2018-06-11 13:19

  本文选题：微电网 + HESS　； 参考：《可再生能源》2016年10期

【摘要】：微电网通常采用储能系统来平抑负载变化引起的直流母线功率波动。文章采用锂电池和超级电容器的混合储能系统(Li-SC HESS)来同时满足因负载变化引起的功率与能量两方面的需求。研究了混合储能系统模型结构,提出了相应的HESS功率协调分配的PCH强跟踪控制方法。结合Simscape在Simulink中建立光储微电网混合储能系统仿真模型,与微电网常规的双闭环线性控制策略进行对比研究。仿真试验结果表明,提出的HESS控制策略可有效减少锂电池充放电次数,平滑其充放电过程,延长使用寿命,进而改善混合储能系统的性能。
[Abstract]:Microgrid usually uses energy storage system to suppress DC bus power fluctuation caused by load change. Li-SC HESS, a hybrid energy storage system for lithium batteries and supercapacitors, is used to meet both the power and energy requirements caused by load changes. The model structure of hybrid energy storage system is studied, and a PCH strong tracking control method for coordinated power allocation of HESS is proposed. The simulation model of hybrid energy storage system of optical microgrid is established in Simulink by Simscape, and compared with the conventional double-closed-loop linear control strategy of micro-grid. The simulation results show that the proposed HESS control strategy can effectively reduce the charge and discharge times of lithium battery, smooth the charging and discharging process, prolong the service life, and improve the performance of hybrid energy storage system.
【作者单位】： 湖北工业大学太阳能高效利用湖北省协同创新中心;
【基金】：国家自然科学基金项目(51247004)
【分类号】：TK02;TM727
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本文编号：2005386