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首页> 外文期刊>Progress in photovoltaics >Reactive power consumption in photovoltaic inverters: a novel configuration for voltage regulation in low-voltage radial feeders with no need for central control
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Reactive power consumption in photovoltaic inverters: a novel configuration for voltage regulation in low-voltage radial feeders with no need for central control

机译：光伏逆变器中的无功功耗：无需中央控制即可在低压径向馈线中进行电压调节的新颖配置

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High photovoltaic (PV) system generation in low-voltage feeders can cause voltage rise especially in low demand conditions. The conventional way of coping with voltage violation is disconnection of the PV systems or curtailment of the generated power. To address this issue, a novel configuration for voltage management in a radial feeder via regulated reactive power capability in PV inverters is presented. The novelty of the proposed configuration is based on the fact that all the PV inverters with the ability to consume reactive power are involved in voltage regulation without being centrally controlled. In order to apply the configuration, a reference voltage is initially estimated for each PV system, and the PV inverters are calibrated accordingly. These settings depend on the feeder topology and can be calculated by the distribution network operator with a simple power flow modelling tool. Finally, this paper presents a sensitivity analysis in order to examine how reactive power consumption in a single inverter influences PV penetration and inverter sizing at various PV topologies along the feeder. Copyright (c) 2014 John Wiley & Sons, Ltd.
机译：低压馈线中高光伏（PV）系统的产生会引起电压升高，尤其是在需求较低的情况下。应对电压违规的常规方法是断开光伏系统或减少发电量。为了解决这个问题，提出了一种新颖的配置，用于通过PV逆变器中通过调节的无功功率来控制径向馈线中的电压。提出的配置的新颖性基于以下事实：所有具有消耗无功功率能力的PV逆变器都参与电压调节，而无需进行集中控制。为了应用该配置，首先为每个PV系统估计参考电压，并相应地校准PV逆变器。这些设置取决于馈线拓扑，并且可以由配电网络运营商使用简单的潮流模型工具进行计算。最后，本文提出了一种敏感性分析，以检查单个逆变器中的无功功率消耗如何影响馈线沿各种PV拓扑结构的PV渗透和逆变器尺寸。版权所有（c）2014 John Wiley＆Sons，Ltd.

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