Fast localized voltage regulation in single-phase distribution grids
Fast localized voltage regulation in single-phase distribution grids
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单相配电网的快速局部电压调节
DOI：
10.1109/smartgridcomm.2015.7436387
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
R. Baldick
中科院分区：
文献类型：
--
作者：
V. Kekatos;Liang Zhang;G. Giannakis;R. Baldick
随着可再生能源、需求响应计划和电动汽车的出现，配电网经历了一场变革。有功功率注入的波动会显著影响电网上的电压幅度。分布式发电（DG）单元的电力电子技术可以提供急需的电压调节的有效手段。另一方面，DG的可扩展性和时变性要求本地化和快速响应的控制方案。在这种情况下，无功功率控制规则后，这里引入了一个明智地定义的电压调节成本上的近端梯度算法。进一步发展了加速控制方案。后者不仅提供本地化处理，但它也享有一个显着的加速优势，只有一个轻微的修改，原来的控制规则。IEEE 13节点和34节点系统的数值试验证实了其优越的上级收敛速度。
Distribution grids undergo a transformative change with the emergence of renewables, demand-response programs, and electric vehicles. Fluctuations in active power injections can dramatically affect voltage magnitudes across the grid. The power electronics of distributed generation (DG) units can provide an effective means of the much needed voltage regulation. On the other hand, the scalability and time-variability of DGs call for localized and fast-responding control schemes. In this context, a reactive power control rule is introduced here after applying a proximal gradient algorithm on a judiciously defined voltage regulation cost. An accelerated control scheme is further developed. The latter scheme not only affords localized processing, but it also enjoys a notable speedup advantage with only a slight modification of the original control rule. Numerical tests on the IEEE 13-bus and 34-bus systems with high solar penetration corroborate its superior convergence rates.