论文标题
关于平衡，电压平衡和基于共识的直流微电网的当前共享
On Existence of Equilibria, Voltage Balancing, and Current Sharing in Consensus-Based DC Microgrids
论文作者
论文摘要
在这项工作中，我们提出了新的二级调节器，用于在直流微电网中的当前共享和电压平衡，该辅助器由分布式生成单元，动态RLC线和非线性ZIP（恒定阻抗，恒定电流和恒定功率）载荷组成。提议的控制器位于主电压控制层的顶部，并通过通信网络交换信息以执行次要控制动作。我们为平衡点的存在和独特性推断出足够的条件，并表明所需的目标是在稳定状态下实现的。我们的控制设计仅需要了解生成单元的本地参数，并促进插入式操作。我们提供了电压稳定性分析，并通过模拟说明了设计的性能和鲁棒性。所有结果均适用于任意，尽管是连接的，微电网和通信网络拓扑。
In this work, we present new secondary regulators for current sharing and voltage balancing in DC microgrids, composed of distributed generation units, dynamic RLC lines, and nonlinear ZIP (constant impedance, constant current, and constant power) loads. The proposed controllers sit atop a primary voltage control layer, and exchange information over a communication network to perform secondary control actions. We deduce sufficient conditions for the existence and uniqueness of an equilibrium point, and show that the desired objectives are attained in steady state. Our control design requires only the knowledge of local parameters of the generation units, facilitating plug-and-play operations. We provide a voltage stability analysis, and illustrate the performance and robustness of our designs via simulations. All results hold for arbitrary, albeit connected, microgrid and communication network topologies.
