SECONDARY FREQUENCY CONTROL OF ISLANDED MICROGRID CONSIDERING WIND AND SOLAR STOCHASTICS

被引：0
|
作者：
Zhong C. [1 ,2 ]
Jiang Z. [2 ]
Zhang X. [2 ]
Chen J. [1 ,2 ]
Li Y. [2 ]
机构：
[1] Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin
[2] School of Electrical Engineering, Northeast Electric Power University, Jilin
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2024年 / 45卷 / 01期
关键词：
deloading control; islanded microgrid; model predictive control; secondary frequency control; stochastic input observer;
D O I：
10.19912/j.0254-0096.tynxb.2022-1463
中图分类号：
学科分类号：
摘要：
This paper proposed a model predictive control（MPC）secondary frequency control method considering wind and solar power generation stochastics. The extended state-space matrix including unknown stochastic power disturbance is established，and a Kalman filter is used to observe the unknown disturbance. The maximum available power of wind and solar DGs is estimated for establishing real- time variable constraints that prevent DGs output power from exceeding the limits. Through setting proper weight coefficients，wind and photovoltaic DGs are given priority to participate in secondary frequency control. The distributed restorative power of each DG is obtained by solving the quadratic programming（QP）optimal problem with variable constraints. Finally，a microgrid simulation model including multiple PV and wind DGs is built and performed in various scenarios compared to the traditional secondary frequency control method. The simulation results validated that the proposed method can enhance the frequency recovery speed and reduce the frequency deviation，especially in severe photovoltaic and wind fluctuations scenarios. © 2024 Science Press. All rights reserved.
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页码：523 / 532
页数：9
相关论文
共 26 条
  • [1] Chen G.P., Li M.J., Xu T., Et al., Practice and challenge of renewable energy development based on interconnected power grids［J］, Power system technology, 41, 10, pp. 3095-3103, (2017)
  • [2] Ding S.K., Liu L.Y., Review of microgrid research［J］, Popular standardization, 22, pp. 225-227, (2021)
  • [3] Bi Y.J., Xu B.Y., Zhao Y.L., Et al., Seamless transfer control strategy between grid-connected and islanding operation for synchronous fixed- frequency microgrid［J］, Power system technology, 46, 3, pp. 923-933, (2022)
  • [4] Lan Z., Diao W.Y., Tu C.M., Et al., Research on hybrid operation mode and power coordination strategy of island microgrid with energy storage and hydrogen fuel cell［J］, Power system technology, 46, 1, pp. 156-164, (2022)
  • [5] Xu Z.R., Yang P., Zheng C.L., Et al., Operation analysis of isolated microgrid including wind turbine， diesel generator and battery storage［J］, Power system technology, 40, 7, pp. 1978-1984, (2016)
  • [6] Hu J.X., Xu G.Y., Bi T.S., Et al., A strategy of frequency control for deloaded wind turbine generator based on coordination between rotor speed and pitch angle［J］, Power system technology, 43, 10, pp. 3656-3663, (2019)
  • [7] Liu L.Q., Wu N., Zhang H.H., Et al., Multi- objective optimization model and its simulation verification for economical secondary frequency and voltage controls of microgrids［J］, Power system technology, 43, 2, pp. 521-530, (2019)
  • [8] Shi Y., Xu D., Yu H.R., Et al., Parameter design method of secondary voltage and frequency regulation controller in microgrid based on system identification modeling［J］, Automation of electric power systems, 44, 13, pp. 89-97, (2020)
  • [9] Mu C.X., Zhang Y., Jia H.J., Et al., Energy-storage-based intelligent frequency control of microgrid with stochastic model uncertainties［J］, IEEE transactions on smart grid, 11, 2, pp. 1748-1758, (2020)
  • [10] Li B., Zhou L., Yu X.R., Et al., Secondary frequency regulation for microgrid inverters based on improving virtual synchronous generator［J］, Power system technology, 41, 8, pp. 2680-2687, (2017)
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