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首页> 外文期刊>Bulletin of the Polish Academy of Sciences. Technical Sciences >Selected converter topologies for interfacing energy storages with power grid
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Selected converter topologies for interfacing energy storages with power grid

机译：选择具有电网的能量存储器的选定转换器拓扑

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The paper presents different solutions applicable in power converter systems for connecting power grids with energy storage systems such as superconducting magnetic energy storage (SMES), supercapacitor energy storage (SES) or chemical batteries. Those systems are characterized by bidirectional current flow between energy storage and power grid. Two-level converters (AC-DC and DC-AC converters) dedicated for low power energy storage compatible with 3 x 400 V-type power grids are proposed. High power systems are connected with 3 x 6 kV-type power grids via transformers that adjust voltage to the particular energy storage or directly, based on multilevel power converters (AC-DC and DC-AC) or dual active bridge (DAB) systems. Solutions ensuring power grid compatibility with several energy storage systems of the same electrical parameters as well as of different voltage-current characteristics are also proposed. Selected simulation results illustrating operation of two system topologies of 200 kW power for two-level converter and neutral point clamped (NPC) three-level converter are presented.
机译：本文介绍了适用于电力变换系统的不同解决方案，用于将电网与超导磁储能（SMES）、超级电容储能（SES）或化学电池等储能系统连接起来。这些系统的特点是储能和电网之间的双向电流。提出了两个用于低功率储能的电平变换器（AC-DC和DC-AC变换器），与3 x 400 V型电网兼容。大功率系统通过变压器与3 x 6 kV型电网相连，变压器将电压调节到特定的能量存储，或直接基于多电平功率转换器（AC-DC和DC-AC）或双有源桥（DAB）系统。还提出了确保电网与具有相同电气参数和不同电压电流特性的多个储能系统兼容的解决方案。文中给出了用于两电平变流器和中性点箝位（NPC）三电平变流器的两种200kW功率系统拓扑的选定仿真结果。

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