首页> 外文期刊>Electric power systems research >An efficient multilevel interconnect control algorithm in AC/DC micro-grids using hybrid energy storage system
【24h】

An efficient multilevel interconnect control algorithm in AC/DC micro-grids using hybrid energy storage system

机译:使用混合能量存储系统的AC / DC微网的高效多级互连控制算法

获取原文
获取原文并翻译 | 示例
           

摘要

This paper presents a multilevel control method in two layers of micro-grids. Downstream grid (BatteryConverter Structure utilizing the distributed maximum power point tracking (DMPPT) for photovoltaic (PV) systems) and upstream grid (distributed generation (DG) sources with hybrid energy storage system (HESS)). In the downstream grid, each PV includes a DC/DC battery-converter with DMPPT. DMPPT converters can be used for voltage amplification and maintaining a constant PV voltage in the event of partial shading. To control the power and voltage in the upstream grid, hybrid energy storage systems (HESSs) distributed among AC/DC microgrids are introduced. Each storage unit has two basic tasks. First, it controls the voltage of the node which as storage unit is connected (local node). Second, it controls the node identified as the global reference node on the grid. The output power of the HESS is controlled in such a way that the node voltage fluctuates in a predefined permissible range. This is due to fluctuations like load changes, reduced power of DGs or power constraints in DGs. To determine the power reference for each HESS, the state of charge (SoC) is considered matched to the dead-band droop control. Simulations were performed by MATLAB/Simulink.
机译:本文介绍了两层微网格的多级控制方法。下游电网(利用分布式最大功率点跟踪(DMPPT)用于光伏(PV)系统)和上游电网(带混合储能系统(HESS)的分布式发电(DG)源)的下游栅格(DMPPT)。在下游网格中,每个PV包括具有DMPPT的DC / DC电池转换器。 DMPPT转换器可用于电压放大,并在偏观时保持恒定的PV电压。为了控制上游电网中的电源和电压,引入了分布在AC / DC微电网中的混合能量存储系统(HESSS)。每个存储单元都有两个基本任务。首先,它控制作为存储单元连接的节点的电压(本地节点)。其次,它控制标识为网格上的全局参考节点的节点。 HESS的输出功率以这样的方式控制,使得节点电压在预定义的允许范围内波动。这是由于负载变化的波动,DGS中的DGS或功率约束的功率降低。为了确定每个HESS的功率参考,将被认为与死区下垂控制匹配的充电状态(SOC)。 Matlab / Simulink执行模拟。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号