具有嵌套非线性分布式控制的直流微电网：可扩展的大信号稳定性与电压 containment
DC Microgrids with Nested Nonlinear Distributed Control: Scalable Large-Signal Stability and Voltage Containment
AI总结：
本文提出了一种具有嵌套非线性分布式控制的直流微电网控制框架，通过优化策略实现稳定运行和优化的电流共享。
摘要：
本文研究了一种采用非线性分布式一致性控制方案的具有物理-信息的直流微电网，用于协调和管理分布式发电单元的整合与管理。通过嵌套的一级和二级控制回路；一个（分布式）外回路和一个（去中心化）内回路，控制器实现了所有分布式发电单元之间的比例电流共享，同时在预定义的电压限制内动态运行。基于Lyapunov的严格稳定性分析在某些调节条件和控制回路之间充分的时间尺度分离的基础上，建立了可扩展的全局指数稳定性证书。随后，提出了一种基于优化的调节策略，以识别并随后减少不稳定运行条件。反过来，引入了各种实际调节策略，以提供稳定运行的同时促进接近最优的比例电流共享。最后，通过特定案例低压直流微电网的时间域仿真验证了所提出控制框架和调节方法的有效性。
英文摘要：
This paper investigates a cyber-physical DC microgrid employing a nonlinear distributed consensus-based control scheme for coordinated integration and management of distributed generating units within an expandable framework. Relying on nested primary andsecondary control loops; a (distributed) outer-loop and a (decentralized) inner-loop, the controller achieves proportional current sharing among all distributed generation units, while dynamically operating within predefined voltage limits. A rigorous Lyapunov-based stability analysis establishes a scalable global exponential stability certificate under some tuning conditions and sufficient time-scale separation between the control loops, based on singular perturbation theory. An optimization-based tuning strategy is then formulated to identify and subsequently diminish unstable operating conditions. In turn, various practical tuning strategies are introduced to provide stable operations while facilitating near-optimal proportional current sharing. The effectiveness of the proposed control framework and tuning approaches are finally supported through time-domain simulations of a case-specific low-voltage DC microgrid.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
