基于信息物理系统融合的广域互联电网阻尼控制策略

发布时间：2018-07-27 14:59

【摘要】：随着信息通信技术在电网中的广泛应用,紧密融合电网与信息通信的电力信息物理系统(Cyber-Physical Power System,CPPS)为广域互联电网间的低频振荡抑制提供了便利。在电力系统海量运行数据的基础上,提出CPPS广域阻尼控制(Wide-Area Damping Control,WADC)策略。其采用可变遗忘因子最小二乘法来辨识物理系统模型,并基于此模型由广义预测控制算法(Generalized Predictive Control,GPC)生成决策控制指令。进一步地,建立通信补偿机制来补偿信息系统延时、丢包、乱序对物理系统运行的不利影响。通过Matlab和Visual Studio建立CPPS联合仿真平台来分析电力系统和信息系统的交互影响。以16机5区系统为例进行仿真,结果表明建立的CPPS联合仿真模型能够有效地模拟物理系统与信息系统的交互影响。所提出的CPPS广域阻尼控制策略,在信息系统的不利影响下,能够有效抑制电力系统低频振荡。
[Abstract]:With the wide application of information and communication technology in the power network, the Cyber-Physical Power system (Cyber-Physical Power system), which closely integrates the power network and information communication, provides convenience for the suppression of low frequency oscillation between the wide area interconnected power networks. Based on the massive operation data of power system, the CPPS wide-area damping control (Wide-Area Damping) strategy is proposed. The variable forgetting factor least square method is used to identify the physical system model, and based on this model, the decision control instructions are generated by the generalized predictive control algorithm (Generalized Predictive Control GPC). Furthermore, a communication compensation mechanism is established to compensate for the adverse effects of delay, packet loss and disorder on the operation of the physical system. The CPPS joint simulation platform is established by Matlab and Visual Studio to analyze the interaction between power system and information system. The simulation results show that the CPPS joint simulation model can effectively simulate the interaction between physical system and information system. The proposed wide area damping control strategy of CPPS can effectively suppress the low frequency oscillation of power system under the adverse influence of information system.
【作者单位】：湖南大学电气与信息工程学院;
【基金】：国家自然科学基金(61233008,51520105011)~~
【分类号】：TM712

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