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arXiv 1408.1602eess.SYcs.SY
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低压配电网中光伏接入与需求响应

PV Integration in Low-Voltage Feeders with Demand Response

ETH Zürich(苏黎世联邦理工学院)

Xiangkun Li, Theodor Borsche, Göran Andersson

AI总结:

本文研究利用电热水泵实现需求响应,提升低压配电网的光伏接入容量,通过变压器功率测量提出控制策略,优化柔性负载调度并减少负载切换。

摘要:

增加分布式光伏(PV)发电会导致电压升高和电网回流增加。本文研究利用电热水泵作为需求响应(DR)手段,提升低压配电网的光伏接入能力。提出仅依赖变压器功率测量的控制策略,优化柔性负载调度考虑能源获取成本、光伏弃用惩罚和功率与能量约束。此外,研究负载和光伏电站的分组,并利用切换惩罚减少不必要的负载切换。证明该策略即使在仅有基本可控性的情况下,也能显著提升低压配电网的光伏接入容量。

英文摘要:

Increased distributed Photo-Voltaic (PV) generation leads to an increase in voltages and unwarranted backflows into the grid. This paper investigates Demand Response (DR) with Electric Water Heaters (EWHs) as a way to increase the PV hosting capacity of a low-voltage feeder. A control strategy relying only on power measurements at the transformer is proposed. Flexible loads are optimally dispatched considering energy acquisition costs, a PV shedding penalty, and power and energy constraints. Furthermore, grouping of loads and PV plants is investigated, and switching penalties are used to reduce the unnecessary switching of loads. It is shown that this strategy can substantially increase the PV hosting capacity of a Low-Voltage (LV) feeder, even when only basic controllability is available.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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