一种微网群架构及其自主协调控制策略

发布时间：2018-01-11 01:16

本文关键词：一种微网群架构及其自主协调控制策略　出处：《电工技术学报》2017年10期 　论文类型：期刊论文

【摘要】：微网群作为多个交、直流子网的互联系统,其组成结构的复杂性增加了微网群的功率协调控制难度。提出一种微网群架构及其自主协调控制策略,该架构主要包括交、直流子网,功率交换单元(PEU)和能量池(EP)。PEU主要用于协调微网群内各子网与EP进行功率交换,使得各子网实现能量互济,并维持各子网母线电压及频率的稳定;EP主要用于维持EP直流侧母线电压的稳定运行,并实现对PEU所需交换净功率的合理分配。针对PEU和EP分别提出基于自适应功率交换系数的功率协调控制方法和分层协调控制方法,有效地实现了微网群的自主协调控制。仿真与实验结果都证明了所提微网群架构及其自主协调控制策略的有效性。
[Abstract]:Micro network as multiple, interconnected system DC sub networks, its structure complexity increases the difficulty of power coordination control network. Put forward a micro micro network architecture and its independent coordination control strategy, including the architecture, DC sub network, power switching unit (PEU) and energy pool (EP).PEU mainly for the coordination of the network and EP network in micro power exchange, realize mutual energy makes the subnet, and maintain each sub network bus voltage and frequency stability; EP is mainly used to maintain stable operation of EP DC bus voltage, and realize the rational allocation of PEU needed to exchange for PEU and net power. EP proposed exchange coefficient based on adaptive power power coordination control method and a hierarchical coordination control method, effectively realizes the independent coordination control of micro network group. The simulation and experimental results show that the proposed micro network architecture and its self The effectiveness of the master coordinated control strategy.

【作者单位】：国家电能变换与控制工程技术研究中心(湖南大学);
【基金】：国家自然科学基金资助项目(51237003,51577056,51677063)
【分类号】：TM727
【正文快照】： 0引言随着传统化石能源的日益枯竭、全球能源危机的加剧,太阳能、风能等分布式电源(DistributedGenerators,DGs)得到了广泛的应用,微电网作为接纳分布式电源的有效手段,逐步引起了社会的广泛关注[1-5]。微电网是由分布式电源、储能电池、负荷和电力电子变换器构成的可控系统,

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