论文标题
具有网格形成和网格支持逆变器的分布系统中的分布式优化
Distributed Optimization in Distribution Systems with Grid-Forming and Grid-Supporting Inverters
论文作者
论文摘要
随着主动网格边缘技术的大量渗透，分布式计算和优化范例已引起人们对解决分布级最佳功率流（OPF）问题的极大关注。但是，将通用分布式优化技术应用于OPF问题会导致在分布式计算代理中延迟决策过程或导致次优的解决方案的分布式计算代理之间的大量宏观介绍或通信回合。此外，现有的分布级OPF问题通常将逆变器互换分布式能源（DERS）建模为网格跟随逆变器；尚未明确考虑具有网格支持和网格形成功能。不同的逆变器模型引入的附加复杂性需要进一步关注针对新型基于逆变器的DER和可计算捕获的OPF算法的合适模型。在本文中，我们将分布级OPF模型扩展到包括网格形成，网格支持，基于网格的基于逆变器的DER的组合，还介绍了针对拓扑特异性问题分解和分布式算法的应用，用于拓扑辐射电源分配系统，以有效地求解分布级别的OPF OPF问题。
With massive penetrations of active grid-edge technologies, distributed computing and optimization paradigm has gained significant attention to solve distribution-level optimal power flow (OPF) problems. However, the application of generic distributed optimization techniques to OPF problems leads to a very large number of macro-iterations or communication rounds among the distributed computing agents delaying the decision-making process or resulting in suboptimal solutions. Moreover, the existing distribution-level OPF problems typically model inverter-interfaced distributed energy resources (DERs) as grid-following inverters; grid-supporting and grid-forming functionalities have not been explicitly considered. The added complexities introduced by different inverter models require further attention to developing an appropriate model for new types of inverter-based DERs and computationally-tractable OPF algorithms. In this paper, we expand the distribution-level OPF model to include a combination of the grid-forming, grid-supporting, grid-following inverter-based DERs and also present the application of a domain-specific problem decomposition and distributed algorithm for the topologically radial power distribution systems to efficiently solve distribution-level OPF problem.
