利用FACTS器件增强微电网的电压稳定性和弹性

Luis A. Paredes, M. Molina, B. Serrano
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引用次数: 2

摘要

微电网在全球许多国家的兴起,带来了与微电网运行和控制相关的各种问题。mg可以在两种模式下运行:并网模式或孤岛(自主)模式。当MG隔离发生时,系统动力学和控制动作必须安全可靠地响应,以便其过渡到孤岛运行模式,以确保运行弹性。在这种情况下,可以采用FACTS(柔性交流输电系统)技术来确保MG的良好运行性能,以减轻与电压控制和稳定性相关的问题。本文对静态无功补偿器(SVC)和分布静态补偿器(DSTATCOM)等FACTS器件进行了对比研究,以了解并网向隔离运行过渡过程中提高电网动态电压稳定性(DVS)的特点和运行响应。结果表明,这些FACTS设备与MG分布式发电系统协同运行,可以显著提高分布式发电系统的DVS和运行弹性。结果令人满意,并通过时域动态模拟和使用与DVS和MG操作弹性相关的拟议指标提出了改进。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Enhancing the Voltage Stability and Resilience of a Microgrid Using FACTS Devices
The rise of microgrid (MG) deployments in many countries worldwide are bringing different problems associated with their operation and control. MGs can be operated in two modes: grid-connected mode or islanded (autonomous) mode. When the MG isolation takes place, the system dynamics and control actions must respond safely and reliably so that its transition to the islanded operating mode can ensure the operational resilience. In this situation, FACTS (flexible ac transmission system) technology can be applied to ensure a good operational performance of the MG to mitigate problems related to voltage control and stability. In this paper, FACTS devices such as SVC (static Var compensator) and DSTATCOM (distribution static compensator) are comparatively studied in order to know the features and operational responses to improve the dynamic voltage stability (DVS) in the MG transition from the grid-tied to the isolated operation. Results obtained show that these FACTS devices operating in coordination with the MG distributed generation systems can improve considerably the DVS and operational resilience. Results are satisfactory and their improvements are presented through dynamic simulations in time domain and using proposed metrics related to the DVS and the MG operational resilience.
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