论文标题
安排软件定义的微电网以进行最佳频率调节
Scheduling of Software-Defined Microgrids for Optimal Frequency Regulation
论文作者
论文摘要
与大量的基于逆变器的资源（IBR）集成在一起，微电网面临频率动力学的复杂性，尤其是在来自Maingrid的意外岛化之后。另一方面，这些IBR提供了更大的控制灵活性，以塑造微电网的频率动力学，并与先进的通信基础架构一起为将来的软件定义的微电网提供了新的机会。为了增强具有高IBR渗透率的微电网的频率稳定性，本文提出了软件定义的微电网的最佳调度框架，以通过利用非必需的载荷脱落和对虚拟惯性的非必需负载脱落和动态优化，并从IBR中进行虚拟阻尼。此外，对这些服务的副作用，即，与非必需负载脱落和潜在的IBR控制参数更新失败相关的时间延迟是明确建模的，以避免低估频率偏差和过度优势结果。根据修改后的IEEE 33-BUS系统中的案例研究，证明了拟议的同时和动态虚拟惯性和阻尼策略的有效性和显着经济价值。
Integrated with a high share of Inverter-Based Resources (IBRs), microgrids face increasing complexity of frequency dynamics, especially after unintentional islanding from the maingrid. These IBRs, on the other hand, provide more control flexibility to shape the frequency dynamics of microgrid and together with advanced communication infrastructure offer new opportunities in the future software-defined microgrids. To enhance the frequency stability of microgrids with high IBR penetration, this paper proposes an optimal scheduling framework for software-defined microgrids to maintain frequency stability by utilizing the non-essential load shedding and dynamical optimization of the virtual inertia and virtual damping from IBRs. Moreover, side effects of these services, namely, the time delay associated with non-essential load shedding and potential IBR control parameter update failure are explicitly modeled to avoid underestimations of frequency deviation and over-optimistic results. The effectiveness and significant economic value of the proposed simultaneous and dynamic virtual inertia and damping provision strategy are demonstrated based on case studies in the modified IEEE 33-bus system.
