论文标题
分布式HVDC紧急电源控制；案例研究北欧电力系统
Distributed HVDC Emergency Power Control; case study Nordic Power System
论文作者
论文摘要
在存在较大干扰和低惯性场景的情况下，频率遏制储量可能不足以提供适当的响应。作为解决方案，这项工作评估了详细的北欧电力系统模型中应用的HVDC互连的基于辅助频率的紧急电源控制（EPC）。 EPC分布和确定HVDC链接的EPC性能的因素是感兴趣的重点。主要标准是最大瞬时频率偏差和使用的EPC功率。根据有关线性化系统表示的理论观察，提出的方法是动机的。但是，对感兴趣的评估和提议的特性，例如提供EPC的主动和反应能力，其比率以及由于EPC而导致的系统中总负载和损失的能量，涉及高度非线性系统的行为。最后，根据获得的研究，提供了有关EPC分布对频率NADIR限制的务实重要性的评论。
Frequency Containment Reserves might be insufficient to provide an appropriate response in the presence of large disturbances and low inertia scenarios. As a solution, this work assesses the supplementary droop frequency-based Emergency Power Control (EPC) from HVDC interconnections, applied in the detailed Nordic Power System model. EPC distribution and factors that determine the EPC performance of an HVDC link are the focus of interest. The main criteria are the maximum Instantaneous Frequency Deviation and used EPC power. The presented methodology is motivated based on the theoretical observation concerning linearized system representation. However, the assessed and proposed properties of interest, such as provided EPC active and reactive power, their ratio, and energy of total loads and losses in the system due to the EPC, concern highly nonlinear system behavior. Finally, based on the obtained study, remarks on the pragmatical importance of the EPC distribution to the frequency nadir limitation are provided.
