论文标题
电力系统中频率调节的分布式最佳生成和负载端控制
Distributed Optimal Generation and Load-Side Control for Frequency Regulation in Power Systems
论文作者
论文摘要
为了处理由电力系统中可再生资源渗透引起的问题，本文提出了一种新颖的分布式频率控制算法，用于每个生成单元，并在变速器网络中可控负载，以替代传统的自动生成控制（AGC）。所提出的对照算法的目标是双重的。首先，它是在发电和需求之间有主动的功率不匹配后恢复名义频率和计划的净区域间功率交换。其次，它是以分布式的方式最佳地协调所有可控单元的主动力。设计的控制器仅依赖于网络连接的总线之间的本地信息，计算和点对点通信，并且在不确定的系统参数方面也是强大的。通过使用包括一阶涡轮机治疗动力学的非线性结构传播模型，分析了设计算法下闭环系统的渐近稳定性。最后，案例研究验证了所提出的方法的有效性。
In order to deal with issues caused by the increasing penetration of renewable resources in power systems, this paper proposes a novel distributed frequency control algorithm for each generating unit and controllable load in a transmission network to replace the conventional automatic generation control (AGC). The targets of the proposed control algorithm are twofold. First, it is to restore the nominal frequency and scheduled net inter-area power exchanges after an active power mismatch between generation and demand. Second, it is to optimally coordinate the active powers of all controllable units in a distributed manner. The designed controller only relies on local information, computation, and peer-to-peer communication between cyber-connected buses, and it is also robust against uncertain system parameters. Asymptotic stability of the closed-loop system under the designed algorithm is analysed by using a nonlinear structure-preserving model including the first-order turbine-governor dynamics. Finally, case studies validate the effectiveness of the proposed method.
