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首页> 外文会议>IEEE PES Asia-Pacific Power and Energy Engineering Conference >Hierarchical Voltage Control Strategy Based on Typical Scenes in AC/DC Hybrid Distribution Network with Operation of Multiport Flexible DC Looped Network
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Hierarchical Voltage Control Strategy Based on Typical Scenes in AC/DC Hybrid Distribution Network with Operation of Multiport Flexible DC Looped Network

机译：基于典型场景的分层电压控制策略，具有多端口灵活直流环路网络运行的AC / DC混合分布网络中的典型场景

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摘要

For distribution network with a large number of distributed generation, the output fluctuation of distributed power sources and load variation will cause voltage over-limit. Aiming at AC voltage control of AC/DC hybrid distribution network, this paper proposes the hierarchical voltage control framework. Based on bus voltage level, we construct typical scenes while the voltage is normal, mild over-limit and severe over-limit. Under normal scene, the paper proposes to improve the dynamic reactive power reserve capacity of distribution network through global optimization. Under voltage mild over-limit scene, the coordinated strategy of centralized/local control is implemented to correct bus voltage which is slightly deviated. Under voltage severe over-limit scene, the paper proposed to reduce voltage over-limit level into normal state by rapid emergency support of reactive power of VSC (Voltage Source Converter). Finally, based on practical network the simulation is performed to validate the rationality and efficiency of the proposed strategy.
机译：对于具有大量分布生成的分配网络，分布式电源的输出波动和负载变化将导致电压过度限制。旨在AC / DC混合配电网络的交流电压控制，本文提出了分层电压控制框架。基于总线电压电平，我们构建典型场景，而电压是正常的，过于限制和严重过度限制。在正常场景下，本文提出通过全球优化提高配电网动态无功储备容量。在电压温和过度限制场景下，集中/本地控制的协调策略被实施为校正略微偏离的总线电压。在电压严重过度限制场景下，通过快速应急支持VSC（电压源转换器）的快速紧急支撑，提出将电压过度限制水平降低到正常状态。最后，基于实际网络，执行模拟以验证所提出的策略的合理性和效率。

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