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Control of energy storage system inverter system in a microgrid application

机译:微电网应用中储能系统逆变器系统的控制

摘要

A system that manages a supplemental energy source connected to a power grid uses a two stage control strategy to manage power transfers in and out of the power grid as well as in and out of an energy storage system, such as a battery bank. One stage uses a non-linear transfer function to control an output frequency of a DC-to-AC inverter to limit undesired effects of power transients that occur on the grid. A second stage uses control strategy for transferring energy between the energy storage system and an internal DC link based on a relationship between a voltage on a DC link connecting the first and second stages and a DC link reference voltage, the voltage on the DC link, and a voltage at the energy storage system. The control strategy includes rapid charging, over-charging protection, and grid transient stabilization.
机译:管理连接到电网的补充能源的系统使用两阶段控制策略来管理进出电网以及进出储能系统(例如电池组)的功率传输。一级使用非线性传递函数来控制DC-AC逆变器的输出频率,以限制发生在电网上的功率瞬变的不良影响。第二阶段使用控制策略,用于基于连接第一阶段和第二阶段的DC链路上的电压与DC链路参考电压,DC链路上的电压之间的关系,在能量存储系统和内部DC链路之间传输能量。能量存储系统上的电压。控制策略包括快速充电,过充电保护和电网暂态稳定。

著录项

  • 公开/公告号US9042141B2

    专利类型

  • 公开/公告日2015-05-26

    原文格式PDF

  • 申请/专利权人 CATERPILLAR INC.;

    申请/专利号US201313761473

  • 发明设计人 GREG SPECKHART;DACHUAN YU;

    申请日2013-02-07

  • 分类号H02M3/24;H02M7/44;G05F1/00;H02M7/537;

  • 国家 US

  • 入库时间 2022-08-21 15:19:20

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