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电网技术  2015 

考虑离散马尔可夫模型的多工况电力系统自适应控制策略

DOI: 10.13335/j.1000-3673.pst.2015.10.026, PP. 2856-2861

Keywords: 离散马尔可夫系统模型,多工况系统,在线辨识,鲁棒随机稳定,自适应控制策略

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Abstract:

针对连锁故障导致电力系统运行工况变化较大的问题,提出一种考虑离散马尔可夫模型(Markov)的多工况电力系统自适应控制策略。首先,建立考虑电力系统多工况因素的离散Markov系统模型,构造含该模型的Lyapunov泛函,并利用迭代法推导满足干扰衰减度的鲁棒随机稳定判据。在此基础上,利用Schur补引理,获取满足H?范数界的线性矩阵不等式(linearmatrixinequality,LMI),并结合系统各子工况最小方差约束,设计满足最小方差约束的鲁棒随机稳定控制器。然后,利用线性目标函数的最小化问题求解各子工况匹配控制器,利用随机梯度在线辨识方法确定子工况对应加权系数,实现自适应加权控制。时域仿真结果表明该策略具有良好的控制效果,有效解决了固定故障集无法与当前工况合理匹配的难题。

References

[1]  Yao Wei,Jiang L,Wen Jinyu,et al.Wide-area damping controller of FACTS devices for inter-area oscillations considering communi-cation time delays[J].IEEE Transactions on Power Systems,2014,29(1):318-329.
[2]  白雪峰,倪以信.电力系统动态安全分析综述[J].电网技术,2004,28(16):14-20.Bai Xuefeng,Ni Yixin.Survey on dynamic security assessment of power systems[J].Power System Technology,2004,28(16):14-20(in Chinese).
[3]  马静,李俊臣,朱祥胜,等.基于离散Markov理论的电力系统跳变时滞稳定性分析[J].电网技术,2014,38(8):2057-2062.Ma Jing, Li Junchen, Zhu Xiangsheng, et al.Discrete Markov theory based analysis on jump time-delay stability of power system[J].Power System Technology,2014,38(8):2057-2062(in Chinese).
[4]  马静,李益楠,李俊臣,等.考虑电力系统跳变特性的时滞稳定控制策略[J].电网技术,2015,39(4):1033-1040.Ma Jing,Li Yinan,Li Junchen,et al.A time-delay stability control strategy considering jump characteristic of power system[J].Power System Technology,2015,39(4):1033-1040(in Chinese).
[5]  Majumder R,Chaudhuri B,El-Zobaidi H,et al.LMI approach to normalised H ? ?loop-shaping design of power system damping controllers[J].IEE Proceedings Generation,Transmission and Distribution,2005,152(6):952-960.
[6]  Chilali M,Gahinet P.H ? ?design with pole placement constraints:an LMI approach[J].IEEE Transactions on Automation Control,1996,41(3):358-367.
[7]  Djukanovic M,Khammash M,Vittal V.Sequential synthesis of structured singular value based decentralized controllers in power systems[J].IEEE Transactions on Power Systems,1999,14(2):635-641.
[8]  Ma J,Garlapati S,Thorp J S.Robust wide area measurement system-based control of inter-area oscillations[J].Electric Power Components and Systems,2011,39(9):850-862.
[9]  Pal A,Thorp J S,Veda S S,et al.Applying a robust control technique to damp low frequency oscillations in the WECC[J].Electrical Power and Energy Systems,2013,44(1):638-645.
[10]  Feng X B,Loparo K A,Ji Y D,et al.Stochastic stability properties of jump linear systems[J].IEEE Transactions on Automatic Control,1992,37(l):38-53.
[11]  Cao Y Y,James L.Robust H ? control of uncertain Markovian jump systems with time-delay[J].IEEE Transactions on Automatic Control,2000,45(1):77-83.
[12]  刘艳君.多变量系统辨识方法及性能分析[D].无锡:江南大学,2012.
[13]  方非.多模型自适应控制的模型集构建与动态优化研究[D].南京:南京大学,2011.
[14]  马静,王彤,彭明法,等.基于区间模型和二阶摄动理论的低频振荡模态分析方法[J].电网技术,2012,36(10):136-140.Ma Jing,Wang Tong,Peng Mingfa,et al.Interval model and second order perturbation theory-based modal analysis of power system low-frequency oscillation [J].Power System Technology,2012,36(10):136-140(in Chinese).
[15]  吴文可,文福拴,薛禹胜,等.基于马尔可夫链的电力系统连锁故障预测[J].电力系统自动化,2013,37(5):29-37.Wu Wenke,Wen Fushuan,Xue Yusheng,et al.A Markov chain based model for forecasting power system cascading failures[J].Automation of Electric Power Systems,2013,37(5):29-37(in Chinese).
[16]  倪以信,陈寿孙,张宝霖.动态电力系统的理论和分析[M].北京:清华大学出版社,2002:269-270.
[17]  马静,郭锐,王玉慧,等.基于积分滑模控制的广域阻尼鲁棒控制策略[J].电网技术,2013,37(2):362-366.Ma Jing,Guo Rui,Wang Yuhui,et al.Wide-area damping robust control strategy based on integral sliding mode control[J].Power System Technology,2013,37(2):362-366(in Chinese).

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