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首页> 外文期刊>Electric power systems research >A comprehensive voltage control strategy with voltage flicker compensation for highly PV penetrated distribution networks
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A comprehensive voltage control strategy with voltage flicker compensation for highly PV penetrated distribution networks

机译：具有电压闪变补偿的全面电压控制策略，用于高度PV穿透的配电网络

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摘要

A three-level distributed voltage control strategy is proposed that keeps the voltage quality of a network within the defined standards, utilizing the control capabilities of the Photovoltaic (PV) inverters. It utilizes Flicker Control (FC), Local Voltage Control (LVC) and Co-ordinated Voltage Control (CVC), to stabilize the node voltages. FC removes the fast voltage fluctuations instantly, utilizing the PV power fluctuation and short-circuit impedance values as the controlling inputs, at the point of PV integration. LVC provides a robust response to the voltage violations outside the dead band while enhancing the voltage quality, utilizing local information in formulating inverter set points for reactive power support and real power curtailment strategies. Lastly, CVC is initiated whenever there is a voltage violation or PV curtailment at any of the network's nodes. CVC utilizes a multi-agent system to reduce curtailment and network losses, while utilizing the coordination among various droop controls, to fully utilize the inverter's Q-support capability. The effectiveness of the proposed voltage control architecture is demonstrated on a 33-bus medium-voltage distribution network, hosting 13 PV systems.
机译：提出了一种三级分布式电压控制策略，该策略利用光伏（PV）逆变器的控制功能将网络的电压质量保持在定义的标准之内。它利用闪烁控制（FC），本地电压控制（LVC）和协调电压控制（CVC）来稳定节点电压。 FC在PV积分时立即利用PV功率波动和短路阻抗值作为控制输入来消除快速的电压波动。 LVC通过利用本地信息为无功功率支持和有功功率削减策略制定逆变器设定点，从而对死区外的电压违规行为提供了强大的响应，同时提高了电压质量。最后，只要在网络的任何节点上出现电压违规或PV缩减的情况，就启动CVC。 CVC利用多代理系统来减少削减和网络损失，同时利用各种下垂控制之间的协调来充分利用逆变器的Q支持功能。所提出的电压控制架构的有效性在包含13个光伏系统的33总线中压配电网络上得到了证明。

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