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Neural Network Based Data-Driven Load Frequency Control for Interconnected Power Systems |
Chen Zongyao1, Bu Xuhui1,2, Guo Jinli1 |
1. School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo 454003 China; 2. Henan Key Laboratory of Intelligent Detection and Control of Coal Mine Equipment Henan Polytechnic University Jiaozuo 454003 China |
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Abstract To the problems of modeling errors and uncertainties in highly complex power systems, a load frequency control (LFC) strategy was proposed in this paper without using any model information of power system based on model-free adaptive control (MFAC) algorithm. First, the dynamic model of the power system was abstracted as a general nonlinear function. By introducing a time-varying pseudo partial derivative (PPD) between historical I/O data, the nonlinear power system was equivalent to a dynamic linear data model. Secondly, an RBF neural network was constructed to estimate the PPD of the system online, and the optimization theory was used to design the data-driven LFC scheme. In theory, the stability of the closed-loop power system and the convergence of the RBF neural network estimation method were strictly analyzed. Finally, it is verified on the interconnected power system that the LFC method in this paper can achieve good tracking performance without using model information.
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Received: 04 August 2021
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[1] 李军徽, 侯涛, 穆钢, 等. 电力市场环境下考虑风电调度和调频极限的储能优化控制[J]. 电工技术学报, 2021, 36(9): 1791-1804. Li Junhui, Hou Tao, Mu Gang, et al.Optimal control strategy for energy storage considering wind farm scheduling plan and modulation frequency limitation under electricity market environment[J]. Transactions of China Electrotechnical Society, 2021, 36(9): 1791-1804. [2] 颜湘武, 崔森, 常文斐. 考虑储能自适应调节的双馈感应发电机一次调频控制策略[J]. 电工技术学报, 2021, 36(5): 1027-1039. Yan Xiangwu, Cui Sen, Chang Wenfei.Primary frequency regulation control strategy of doubly-fed induction generator considering supercapacitor SOC feedback adaptive adjustment[J]. Transactions of China Electrotechnical Society, 2021, 36(5): 1027-1039. [3] Liao Kai, Xu Yan.A robust load frequency control scheme for power systems based on second-order sliding mode and extended disturbance observer[J]. IEEE Transactions on Industrial Informatics, 2018, 14(7): 3076-3086. [4] Yan Shen, Gu Zhou, Park J H.Memory-event-triggered H∞ load frequency control of multi-area power systems with cyber-attacks and communication delays[J]. IEEE Transactions on Network Science and Engineering, 2021, 8(2): 1571-1583. [5] 杨丽, 孙元章, 徐箭, 等. 基于在线强化学习的风电系统自适应负荷频率控制[J]. 电力系统自动化, 2020, 44(12): 74-83. Yang Li, Sun Yuanzhang, Xu Jian, et al.Adaptive load frequency control of wind power system based on online reinforcement learning[J]. Automation of Electric Power Systems, 2020, 44(12): 74-83. [6] 吕永青, 窦晓波, 杨冬梅, 等. 含荷电状态修正和通信延迟的储能电站负荷频率鲁棒控制[J]. 电力系统自动化, 2021, 45(10): 59-67. Lü Yongqing, Dou Xiaobo, Yang Dongmei, et al.Load-frequency robust control for energy storage power station considering correction of state of charge and communication delay[J]. Automation of Electric Power Systems, 2021, 45(10): 59-67. [7] 左剑, 谢平平, 李银红, 等. 基于智能优化算法的互联电网负荷频率控制器设计及其控制性能分析[J]. 电工技术学报, 2018, 33(3): 478-489. Zuo Jian, Xie Pingping, Li Yinhong, et al.Intelligent optimization algorithm based load frequency controller design and its control performance assessment in interconnected power grids[J]. Transactions of China Electrotechnical Society, 2018, 33(3): 478-489. [8] Bevrani H.Robust power system frequency control[M]. New York: Springer, 2009. [9] Zhang He, Liu Jun, Xu Shengyuan.H-infinity load frequency control of networked power systems via an event-triggered scheme[J]. IEEE Transactions on Industrial Electronics, 2020, 67(8): 7104-7113. [10] 侯庆春, 杜尔顺, 田旭, 等. 数据驱动的电力系统运行方式分析[J]. 中国电机工程学报, 2021, 41(1): 1-12, 393. Hou Qingchun, Du Ershun, Tian Xu, et al.Data-driven power system operation mode analysis[J]. Proceedings of the CSEE, 2021, 41(1): 1-12, 393. [11] Dong Na, Han Xueshuo, Gao Zhongke, et al.SPSA-based data-driven control strategy for load frequency control of power systems[J]. IET Generation, Transmission and Distribution, 2018, 12(2): 414-422. [12] Yan Ziming, Xu Yan.A multi-agent deep reinforcement learning method for cooperative load frequency control of a multi-area power system[J]. IEEE Transactions on Power Systems, 2020, 35(6): 4599-4608. [13] Yan Ziming, Xu Yan.Data-driven load frequency control for stochastic power systems: a deep reinforcement learning method with continuous action search[J]. IEEE Transactions on Power Systems, 2019, 34(2): 1653-1656. [14] 黄伟峰, 姚建刚, 韦亦龙, 等. 无模型自适应控制算法在互联电网AGC中的应用[J]. 电力系统及其自动化学报, 2016, 28(4): 78-84. Huang Weifeng, Yao Jiangang, Wei Yilong, et al.Application of model-free adaptive control algorithm into AGC control of interconnected power grid[J]. Proceedings of the CSU-EPSA, 2016, 28(4): 78-84. [15] Asadi Y, Farsangi M M, Bijami E, et al.Data-driven adaptive control of wide-area non-linear systems with input and output saturation: a power system application[J]. International Journal of Electrical Power and Energy Systems, 2021, 133: 107225. [16] Xu Dezhi, Jiang Bin, Shi Peng.A novel model-free adaptive control design for multivariable industrial processes[J]. IEEE Transactions on Industrial Electronics, 2014, 61(11): 6391-6398. [17] Xu Dezhi, Jiang Bin, Shi Peng.Adaptive observer based data-driven control for nonlinear discrete-time processes[J]. IEEE Transactions on Automation Science and Engineering, 2014, 11(4): 1037-1045. [18] 王天鹤, 赵希梅, 金鸿雁. 基于递归径向基神经网络的永磁直线同步电机智能二阶滑模控制[J]. 电工技术学报, 2021, 36(6): 1229-1237. Wang Tianhe, Zhao Ximei, Jin Hongyan.Intelligent second-order sliding mode control based on recurrent radial basis function neural network for permanent magnet linear synchronous motor[J]. Transactions of China Electrotechnical Society, 2021, 36(6): 1229-1237. [19] 付东学, 赵希梅. 基于径向基函数神经网络的永磁直线同步电机反推终端滑模控制[J]. 电工技术学报, 2020, 35(12): 2545-2553. Fu Dongxue, Zhao Ximei.Backstepping terminal sliding mode control based on radial basis function neural network for permanent magnet linear synchronous motor[J]. Transactions of China Electrotechnical Society, 2020, 35(12): 2545-2553. [20] Su Chengli, Liu Bin, Zhang Guanghui, et al.Application of RBF neural network in the model-free adaptive control[C]//Proceedings of the 2011 Chinese Control and Decision Conference, Mianyang, 2011: 3322-3325. [21] Yu Qiongxia, Hou Zhongsheng, Bu Xuhui, et al.RBFNN-based data-driven predictive iterative learning control for nonaffine nonlinear systems[J]. IEEE Transactions on Neural Networks and Learning Systems, 2020, 31(4): 1170-1182. [22] Zhu Yuanming, Hou Zhongsheng, Qian Feng, et al.Dual RBFNNs-based model-free adaptive control with aspen HYSYS simulation[J]. IEEE Transactions on Neural Networks and Learning Systems, 2017, 28(3): 759-765. |
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