Reactive power support capabilities of nonsynchronous interconnection systems in microgrid applications
Reactive power support capabilities of nonsynchronous interconnection systems in microgrid applications
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DOI：
10.1109/apec.2016.7467862
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发表时间：
2016-03
期刊：
影响因子：
--
通讯作者：
Yong-Duk Lee;Sung-Yeul Park
中科院分区：
文献类型：
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作者：
Yong-Duk Lee;Sung-Yeul Park
本文介绍了非同步互联系统“GridLink”在微电网应用中无功支持的能力和优势。该设备使用背靠背转换器提供电网互连。特别是，它还提供辅助服务，包括无功功率、频率调节旋转储备、故障缓解和发电机黑启动辅助。由于GridLink促进了双向电力流动，它可以支持微电网侧发电机和负载以及公用电网侧的辅助服务。此外，GridLink的动态响应速度比同步发电机快，因此对运行条件的约束较少。本文介绍了GridLink的优点。这些好处是能源效率和微电网无功容量的采购。从可变操作和维护（O&M）成本的角度来看，这些好处节省了成本。此外，通过GridLink提供无功功率将提高微电网的电压稳定性。通过MATLAB/Simulink仿真验证了GridLink的无功支持能力。
This paper presents the capabilities and benefits of reactive power support of the nonsynchronous interconnection system, “GridLink”, in microgrid applications. This equipment provides grid interconnection using a back to back converter. Particularly, it also provides ancillary services including reactive power, spinning reserve for frequency regulation, fault mitigation, and aids in black start for generators. Since GridLink facilitates bidirectional power flow, it can support ancillary services for microgrid side generators and loads, and utility grid side. In addition, the dynamic response of GridLink is faster than that of a synchronous generator, so that it has fewer constraints with respect to operation conditions. In this paper, the benefits of the GridLink, are described. These benefits are energy efficiency and procurement of reactive power capacity of microgrid. Cost savings result from these benefits in terms of variable operation and maintenance (O&M) cost. Furthermore, voltage stability of microgrid will be enhanced by supplying reactive power via GridLink. The reactive power support capabilities of GridLink, are verified using MATLAB/Simulink simulation.