论文标题
微电网中分布式发电机的比例功率共享控制
Proportional Power Sharing Control of Distributed Generators in Microgrids
论文作者
论文摘要
这项研究涉及基于逆变器的分布生成器（DGS）的分布式功率共享在微电网中，DGS的最大功率能力的变化。微电网可以包括可再生能源资源，例如风力涡轮机，太阳能电池板，燃料电池等。这种能源资源的间歇性质会导致其最大功率能力的变化。由于微电网中的DGS可以视为多代理系统（质量），因此共有算法的设计目的是使DGS在容量波动下与其最大能力成正比生成其输出功率。 DG的功率容量变化触发了共识算法，该算法使用网络层的通信图来估计相应的变化。在达成共识的瞬时时间，交付的功率可能与负载功率需求不符。为了消除这一不匹配，对控制法的增强是由嵌入在总体能力共享共识算法中的有限时间共识算法组成的。通过模拟由基于逆变器的DGS组成的微电网来评估分布式控制器的有效性。
This research addresses distributed proportional power sharing of inverter-based Distributed Generators (DGs) in microgrids under variations in maximum power capacity of DGs. A microgrid can include renewable energy resources such as wind turbines, solar panels, fuel cells, etc. The intermittent nature of such energy resources causes variations in their maximum power capacities. Since DGs in microgrids can be regarded as Multi-Agent-Systems (MASs), a consensus algorithm is designed to have the DGs generate their output power in proportion to their maximum capacities under capacity fluctuations. A change in power capacity of a DG triggers the consensus algorithm which uses a communication map at the cyber layer to estimate the corresponding change. During the transient time of reaching a consensus, the delivered power may not match the load power demand. To eliminate this mismatch, a control law is augmented that consists of a finite-time consensus algorithm embedded within the overarching power sharing consensus algorithm. The effectiveness of the distributed controller is assessed through simulation of a microgrid consisting of a realistic model of inverter-based DGs.
