基于储能型模块化多电平系统的多时间尺度控制策略

发布时间：2018-03-29 14:13

本文选题：电池储能系统　切入点：模块化多电平变换器　出处：《电工技术学报》2017年17期

【摘要】：将模块化多电平变换器作为电池储能装置的并网变换器,可在平抑新能源输出功率波动的同时实现储能装置的直接并网,降低了系统成本。对于大规模电池储能装置而言,如何延长其使用寿命一直是学术界和工业界的研究热点。基于此,提出了一种适用于储能型模块化多电平系统的多时间尺度控制方法。根据不同的时间尺度划分,可将整体控制分为三层,并为每层控制设定了各自的控制目标。在该控制方式下,仅需估算每个电池组的相对健康程度,即可确定各子模块的输出功率,进而改善电池组的健康状况,使其趋于一致,延长储能系统的使用寿命。最后通过Matlab仿真和实验验证了该控制方法的有效性和可行性。
[Abstract]:The grid connected converter of modular multilevel converter for battery energy storage devices, can be directly connected to the energy storage device in the new energy to stabilize the fluctuation of output power at the same time, reduce the cost of the system. For the large scale battery energy storage device, how to prolong the service life of a straight is a hot research topic in academia and Industry Based on this, a method is presented for the storage of multiple time scale type modular multilevel control system. According to the different time scales, the overall control is divided into three layers, and each layer of control set control objectives respectively. In the control mode, only a relatively healthy degree estimates for each battery, you can determine the output power of each module, and then improve battery health, make it consistent, prolong the service life of the energy storage system. Finally, through Matlab simulation and experimental verification of the The effectiveness and feasibility of the control method.

【作者单位】：山东大学电网智能化调度与控制教育部重点实验室;
【分类号】：TM46

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