Introducing Dynamic Demand Response in the LFC Model
Introducing Dynamic Demand Response in the LFC Model
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DOI：
10.1109/pesgm.2015.7285784
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发表时间：
2014-01
影响因子：
6.6
通讯作者：
S. A. Pourmousavi;H. Nehrir
中科院分区：
文献类型：
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作者：
S. A. Pourmousavi;H. Nehrir
需求响应（DR）已被证明是未来电网的一个不可避免的组成部分。许多研究工作已在文献中报告的DR的好处和实施。然而，很少有工作报告DR对电力系统的动态性能的影响，特别是对负载频率控制（LFC）问题。本文试图通过在传统的单区域电力系统LFC模型中引入DR控制环（称为LFC-DR）来填补这一空白。该模型具有通过DR和辅助控制之间的最优功率分配实现最优运行的特点。在控制器的设计中也考虑了DR通信延迟的影响。结果表明，DR控制环的加入增加了系统的稳定裕度，DR有效地改善了系统的动态性能。对单区域电力系统进行了仿真研究，以验证所提出的方法的有效性。
Demand response (DR) has proved to be an inevitable part of the future grid. Much research works have been reported in the literature on the benefits and implementation of DR. However, little works have been reported on the impacts of DR on dynamic performance of power systems, specifically on the load frequency control (LFC) problem. This paper makes an attempt to fill this gap by introducing a DR control loop in the traditional LFC model (called LFC-DR) for a single-area power system. The model has the feature of optimal operation through optimal power sharing between DR and supplementary control. The effect of DR communication delay in the controller design is also considered. It is shown that the addition of the DR control loop increases the stability margin of the system and DR effectively improves the system dynamic performance. Simulation studies are carried out for single-area power systems to verify the effectiveness of the proposed method.