Flexibility Management in Economic Dispatch With Dynamic Automatic Generation Control
Flexibility Management in Economic Dispatch With Dynamic Automatic Generation Control
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DOI：
10.1109/tpwrs.2021.3103128
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发表时间：
2020-06
影响因子：
6.6
通讯作者：
Lei Fan;Chaoyue Zhao;Guangyuan Zhang;Qiuhua Huang
中科院分区：
文献类型：
--
作者：
Lei Fan;Chaoyue Zhao;Guangyuan Zhang;Qiuhua Huang
随着电力系统中电子互连的可再生能源的安装迅速增长，系统频率维护和控制成为维持大容量电力系统可靠性的挑战性问题。作为独立系统运营商（ISO）和公用事业公司控制中心最重要的两项频率控制行为，经济调度（ED）和自动发电控制（AGC）之间的相互作用越来越受到关注。在本文中，我们提出了一个基于稳健优化的框架，通过考虑两个分层过程（即 ED 和 AGC）之间的交互来衡量系统灵活性。我们提出了一种采用重构技术的割平面算法，以获得系统的七个不同指数。此外，我们研究了几个系统因素（即运营成本预算、爬坡能力和输电线路容量）的影响，并以数字方式显示这些因素如何影响系统灵活性。
As the installation of electronically interconnected renewable energy resources grows rapidly in power systems, system frequency maintenance and control become challenging problems to maintain the system reliability in bulk power systems. As two of the most important frequency control actions in the control centers of independent system operators (ISOs) and utilities, the interaction between Economic Dispatch (ED) and Automatic Generation Control (AGC) attracts more and more attention. In this paper, we propose a robust optimization based framework to measure the system flexibility by considering the interaction between two hierarchical processes (i.e., ED and AGC). We propose a cutting plane algorithm with the reformulation technique to obtain seven different indices of the system. In addition, we study the impacts of several system factors (i.e., the budget of operational cost, ramping capability, and transmission line capacity) and show numerically how these factors can influence the system flexibility.