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首页> 外文期刊>International Journal of Electrical Power & Energy Systems >Distributed voltage regulation of smart distribution networks: Consensus-based information synchronization and distributed model predictive control scheme
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Distributed voltage regulation of smart distribution networks: Consensus-based information synchronization and distributed model predictive control scheme

机译：智能配电网的分布式电压调节：基于共识的信息同步和分布式模型预测控制方案

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This paper proposes a distributed voltage control (DVC) scheme for smart distribution networks with high penetration of inverter-based distributed generators (DGs), aiming to optimally coordinate DG units and on load tap changer (OLTC) transformer to regulate the voltages within the feasible range. The proposed scheme consists of two important parts: (1) distributed information synchronization (DIS) framework and (2) distributed model predictive control (DMPC)-based voltage control scheme. The DIS framework is established based on the consensus protocols to synchronize the specific information about the critical bus voltages and potential OLTC actions. The DMPC-based voltage control scheme is presented, in which each DG unit only exchanges information with its immediate neighbors and solves the local optimal control problem. Two control modes are designed to better deal with different operating conditions. In the normal mode, only the reactive power outputs of DG units are optimized to mitigate the voltage deviations. In the corrective mode, both of the active and reactive power outputs of DG units are optimally controlled to correct the severe voltage deviations. To mitigate the mutual interaction between the DGs and OLTC, the potential actions of OLTC are predicted and considered in the optimization problem of each units. The control performance of the proposed scheme was demonstrated using a real medium-voltage (MV) distribution network with two feeders under both normal and large-disturbance conditions.
机译：本文提出了一种针对智能配电网的分布式电压控制（DVC）方案，该方案具有很高的基于逆变器的分布式发电机（DG）的渗透率，旨在优化DG单元并在有载分接开关（OLTC）变压器上调节可行范围内的电压范围。所提出的方案包括两个重要部分：（1）分布式信息同步（DIS）框架和（2）基于分布式模型预测控制（DMPC）的电压控制方案。基于共识协议建立DIS框架，以同步有关关键总线电压和潜在OLTC动作的特定信息。提出了基于DMPC的电压控制方案，其中每个DG单元仅与其直接邻居交换信息，并解决了局部最优控制问题。设计了两种控制模式以更好地应对不同的运行条件。在正常模式下，仅优化DG单元的无功功率输出以减轻电压偏差。在校正模式下，DG单元的有功功率和无功功率输出均得到最佳控制，以纠正严重的电压偏差。为了减轻DG与OLTC之间的相互影响，在每个单元的优化问题中预测并考虑了OLTC的潜在作用。在正常和大扰动情况下，使用带有两个馈线的实际中压（MV）配电网络演示了该方案的控制性能。

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