配电潮流分析和电压剖面恢复中的DG建模与补偿方法

S. Jahdi, Alidad Etemadian, L. Lai
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引用次数: 4

摘要

目前,由于DG源在改善电压条件和增强传统的功率损耗降低方法方面具有显著的优势,因此使用DG源越来越受欢迎。然而,由于分布式发电机组存在于电力系统的配电层,因此在分布式发电机组存在的情况下进行潮流计算是困难的。之所以会出现这种情况,是因为大多数可用的潮流技术都是为了在输电状态下进行这种分析而开发的。此外,对于大多只产生有功的DG源,其无功补偿器的设计与实现也是一个需要解决的问题。本文将配电发电机组设置在某一电力系统的配电段,并对连接26个母线配电系统的每个DG源提供给定水平的无功补偿,并根据其对母线电压状态恢复的影响分析结果。在模拟研究中,他们确认了除补偿外,DG电源安装对系统电压分布的积极和可接受的影响,并且可以访问DG资源(直接处理有功功率和间接处理无功功率)的位置对此类系统的可访问改进水平具有重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
DG modeling and compensation methods in distribution load flow analysis and voltage profile recovery
Nowadays use of DG sources is getting more popular due to their significant advantageous to improve the voltage conditions and enhance reduction methods that are conventionally used in power losses. However, doing load flow calculations in case of presence of DG sources is difficult due to presence of such generators in distribution level of power system. This is happening since most load flow techniques available are developed to do such analysis in the transmission states. In addition, the design and implementation of reactive power compensator belonging to DG sources which are mostly only generating active power is another matter of issue to be solved. In this paper, distribution generation units are implemented in distribution section of a particular power system with given level of reactive compensation provided for each of the DG sources connected to a 26 buses distribution system and results are analyzed based on their effect on recovery of state of buses' voltages. They confirm positive and acceptable effects of DG sources installation beside their compensations on the voltage profile of the system under simulation studies and it is accessed that locationing of DG resources (which handle both active power directly and reactive power indirectly) have a great importance in level of accessible improvements in such systems.
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