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首页> 外文期刊>IEEE transactions on industrial informatics >Robust Load Frequency Control for Power System Considering Transmission Delay and Sampling Period
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Robust Load Frequency Control for Power System Considering Transmission Delay and Sampling Period

机译：考虑传输延迟和采样周期的电力系统强大负载频率控制

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摘要

Uncertain transmission delays, sampling periods, parameters uncertainties regarding the power system, load fluctuations, and the intermittent generation of renewable energy sources (RESs) will significantly influence a power system's frequency. This article designs a robust delay-dependent PI-based load frequency control (LFC) scheme for a power system based on sampled-data control. First, a sampled-data-based delay-dependent LFC model of power system is constructed. Then, by applying the Lyapunov theory, and the linear matrix inequality technique, a novel stability criterion is developed for the LFC of the power system by considering the sampling period, and transmission delay of the communication network, which ensures that the proposed scheme operates in large sampling periods, and under transmission delays. Next, an exponential decay rate (EDR) is introduced to guide the design of a robust PI-based LFC scheme. The LFC scheme with robustness is designed by setting a small EDR. The values of EDR are adjusted by the given robust performance evaluation conditions of parameter uncertainties, and H-infinity performance. Finally, case studies are carried out based on a one-area power system, and a three-area power system with RESs. Simulation results show that the proposed LFC scheme performs strong robustness against parameter uncertainties regarding the power system, and communication network, load fluctuations, and the intermittent generation of RESs.
机译：不确定的传输延迟，采样周期，关于电力系统，负载波动和可再生能源（RESS）的间歇生成的参数不确定性将显着影响电力系统的频率。本文为基于采样数据控制的电力系统设计了一种强大的延迟依赖性PI基载荷频率控制（LFC）方案。首先，构造了一种基于采样数据的延迟依赖性LFC模型。然后，通过应用Lyapunov理论和线性矩阵不等式技术，通过考虑采样周期和通信网络的传输延迟，为电力系统的LFC开发了一种新的稳定性标准，并确保所提出的方案运行大型采样周期，并在传输延迟下。接下来，引入指数衰减速率（EDR）以指导基于稳健的PI的LFC方案的设计。具有稳健性的LFC方案是通过设置小EDR而设计的。 EDR的值由参数不确定性的给定的稳健性能评估条件和H-Infinity性能进行调整。最后，案例研究基于一扇区电力系统进行，以及带有ress的三个区域动力系统。仿真结果表明，所提出的LFC方案对电力系统的参数不确定性以及通信网络，负载波动以及ress的间歇生成进行了强大的鲁棒性。

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  • 来源
    《IEEE transactions on industrial informatics》 |2021年第8期|5292-5303|共12页
  • 作者

    Shangguan Xing-Chen; Zhang Chuan-Ke; He Yong; Jin Li; Jiang Lin; Spencer Joseph; Wu Min;

  • 作者单位

    China Univ Geosci Sch Automat Wuhan 430074 Peoples R China|Hubei Key Lab Adv Control & Intelligent Automat C Wuhan 430074 Peoples R China|Minist Educ Engn Res Ctr Intelligent Technol Geoexplorat Wuhan 430074 Peoples R China|Univ Liverpool Dept Elect Engn & Elect Liverpool L69 3GJ Merseyside England;

    China Univ Geosci Sch Automat Wuhan 430074 Peoples R China|Hubei Key Lab Adv Control & Intelligent Automat C Wuhan 430074 Peoples R China|Minist Educ Engn Res Ctr Intelligent Technol Geoexplorat Wuhan 430074 Peoples R China;

    China Univ Geosci Sch Automat Wuhan 430074 Peoples R China|Hubei Key Lab Adv Control & Intelligent Automat C Wuhan 430074 Peoples R China|Minist Educ Engn Res Ctr Intelligent Technol Geoexplorat Wuhan 430074 Peoples R China;

    China Univ Geosci Sch Automat Wuhan 430074 Peoples R China|Hubei Key Lab Adv Control & Intelligent Automat C Wuhan 430074 Peoples R China|Minist Educ Engn Res Ctr Intelligent Technol Geoexplorat Wuhan 430074 Peoples R China|Univ Liverpool Dept Elect Engn & Elect Liverpool L69 3GJ Merseyside England;

    Univ Liverpool Dept Elect Engn & Elect Liverpool L69 3GJ Merseyside England;

    Univ Liverpool Dept Elect Engn & Elect Liverpool L69 3GJ Merseyside England;

    China Univ Geosci Sch Automat Wuhan 430074 Peoples R China|Hubei Key Lab Adv Control & Intelligent Automat C Wuhan 430074 Peoples R China|Minist Educ Engn Res Ctr Intelligent Technol Geoexplorat Wuhan 430074 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Load frequency control (LFC); power system; robust PI controller; sampled-data control; transmission delay;

    机译：负载频率控制（LFC）;电力系统;鲁棒PI控制器;采样数据控制;传输延迟;

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