论文标题
用于评估三相径向网络上DER配置稳定性的视觉工具
Visual Tool for Assessing Stability of DER Configurations on Three-Phase Radial Networks
论文作者
论文摘要
我们提出了一种评估分布式能源（DER）在分配电路上的放置以控制电压和电源流的方法和工具。我们以前的工作描述了基于相反对形的控制（PBC），这是一个新颖的控制框架，其中启动了跟踪电压幅度和相位角目标的真实和反应性。在这里，我们采用线性化功率流程方程和积分控制器来开发用于在三相不平衡网络上的PBC的线性状态空间模型。我们使用此模型来评估给定的基于逆变器的DER配置是否允许一组稳定的控制器收益，这不能通过分析可控性或使用Lyapunov方程来完成。相反，我们在参数空间上进行采样，以识别一组稳定的控制器增益。我们的稳定性分析只需要线阻抗模型，并且不需要模拟系统或解决优化问题。我们将此评估纳入公开可视化的工具中，并演示了三个用于评估IEEE 123节点测试馈线（123NF）上许多控制配置的过程。
We present a method and tool for evaluating the placement of Distributed Energy Resources (DER) on distribution circuits in order to control voltages and power flows. Our previous work described Phasor-Based Control (PBC), a novel control framework where DERs inject real and reactive power to track voltage magnitude and phase angle targets. Here, we employ linearized power flow equations and integral controllers to develop a linear state space model for PBC acting on a three-phase unbalanced network. We use this model to evaluate whether a given inverter-based DER configuration admits a stable set of controller gains, which cannot be done by analyzing controllability nor by using the Lyapunov equation. Instead, we sample over a parameter space to identify a stable set of controller gains. Our stability analysis requires only a line impedance model and does not entail simulating the system or solving an optimization problem. We incorporate this assessment into a publicly available visualization tool and demonstrate three processes for evaluating many control configurations on the IEEE 123-node test feeder (123NF).
