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Research on the Method of Microgrid Based on Controlling Hybrid Energy Storage System to Ensure Power Quality

机译：基于控制混合储能系统的微耕电方法研究，以确保电能质量

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摘要

It is proposed to adopt two kinds of storage battery equipment in microgrid, energy storage zinc bromine flow battery and power storage lithium titanate battery. The hybrid energy storage system adopts micro-grid DC/DC converter and DC/AC converter two-stage control. The hybrid energy storage DC/DC converter control adopts a distribution method based on power fluctuations and constant current fast charge control, and the hybrid energy storage DC/AC converter adopts PQ control and an improved droop uniform frequency control method. The algorithm automatically switches in all kinds of operation modes of the microgrid to achieve the power quality indicators, such as voltage sag, frequency deviation, voltage deviation and voltage fluctuation, during the operation of the microgrid to meet the operating requirements. The simulation results prove that the control method is correct.
机译：建议采用微电网中的两种蓄电池设备，储能锌溴流电池和蓄电锂电池电池。混合能量存储系统采用微电网DC / DC转换器和DC / AC转换器两级控制。混合能量存储DC / DC转换器控制采用基于电力波动和恒流快速充电控制的分配方法，混合能储能DC / AC转换器采用PQ控制和改进的下垂均匀频率控制方法。该算法在微电网的各种操作模式下自动切换，以实现电源质量指示器，例如电压凹陷，频率偏差，电压偏差和电压波动，在微电网的运行期间以满足操作要求。仿真结果证明了控制方法是正确的。

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