在基于ILC的离网混合AC/DC微电网中使用集成的BESS和SMES来增强电源管理和平滑直流电压
Sara Mahmoudi Rashid1, Amir Rikhtehgar Ghiasi2
1Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran.
Scientific reports
|July 2, 2025
概括
混合电池和超导磁储能系统稳定了AC/DC混合微电网中的直流链电压. 这提高了电力质量和可再生能源和电网负载之间的管理.
科学领域:
- 电气工程 电气工程
- 可再生能源系统可再生能源系统
- 电力电子 电力电子 电力电子
背景情况:
- 可变的可再生能源 (风能,太阳能) 会导致微电网中的直流链路电压波动.
- 由于互联转换器 (ILC) 的存在,AC/DC混合微电网面临着强化的电压不稳定性.
- 电力质量下降对直流和交流子电网都有影响.
研究的目的:
- 提出一种混合储能系统 (电池+SMES) 用于稳定直流连接电压.
- 提高非电网交流/直流混合微电网的电力管理和质量.
- 使用虚拟同步发生器 (VSG) 控制的ILC集成交流和直流微电网.
主要方法:
- 混合电池和超导磁储能系统 (SMES) 的集成.
- 应用两个具有VSG控制的ILC,用于微电网间的电力交换和质量改善.
- 在直流微电网中利用基于PV和PMSG的风力发电,并在交流微电网中使用PV.
- 在 MATLAB Simulink 环境中进行的模拟.
主要成果:
- 混合存储系统有效地平滑了由可变可再生能源引起的直流链电压波动.
- 稳定的直流微电网电压保持在它的名义值,尽管不断的功率变化.
- 在交流和直流微电网之间实现了高效的电力分配.
- 在交流侧和其直流连接方面证明了功率质量的提高.
结论:
- 拟议的混合存储系统与VSG控制的ILC相结合,为AC/DC混合微电网稳定性提供了强大的解决方案.
- 这种方法提高了复杂的微电网架构中的电力管理,电压调节和整体电力质量.
- 这些发现支持混合存储的可行性,以可靠地整合间歇性可再生能源.
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