This paper investigates the potential of wind turbine generators (WTGs) and load aggregators (LAs) to provide supplementary damping control services for low frequency inter-area oscillations (LFOs) through the additional distributed damping control units (DCUs) proposed in their controllers. In order to provide a scalable methodology for the increasing number of WTGs and LAs, a novel distributed control framework is proposed to coordinate damping controllers. Firstly, a distributed algorithm is designed to reconstruct the system Jacobian matrix for each damping bus (buses with damping controllers). Thus, the critical LFO can be identified locally at each damping bus by applying eigen-analysis to the obtained system Jacobian matrix. Then, if the damping ratio of the critical LFO is less than a preset threshold, the control parameters of DCUs will be tuned in a distributed and coordinated manner to improve the damping ratio and minimize the total control cost at the same time. The proposed control framework is tested in a modified IEEE 39-bus test system. The simulation results with and without the proposed control framework are compared to demonstrate the effectiveness of the proposed framework.

中文翻译：

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使用风力发电机和负载聚合器的电力系统分布式区域间振荡阻尼控制

本文研究了风力涡轮发电机 (WTG) 和负载聚合器 (LA) 通过其控制器中提出的附加分布式阻尼控制单元 (DCU) 为低频区域间振荡 (LFO) 提供补充阻尼控制服务的潜力。为了为越来越多的 WTG 和 LA 提供可扩展的方法，提出了一种新颖的分布式控制框架来协调阻尼控制器。首先，设计了一种分布式算法来重构每个阻尼总线（带有阻尼控制器的总线）的系统雅可比矩阵。因此，通过对获得的系统雅可比矩阵应用特征分析，可以在每个阻尼总线上局部识别关键 LFO。然后，如果临界 LFO 的阻尼比小于预设阈值，DCU 的控制参数将以分布式和协调的方式进行调整，以提高阻尼比，同时最大限度地降低总控制成本。建议的控制框架在改进的 IEEE 39 总线测试系统中进行了测试。比较有和没有提出的控制框架的仿真结果，以证明所提出的框架的有效性。