| 引用本文: | 关琳燕,周 洪,胡文山.基于Hamilton理论的广域非线性时滞多机电力系统的稳定与控制[J].电力系统保护与控制,2016,44(19):17-24. |
| GUAN Linyan,ZHOU Hong,HU Wenshan.Nonlinear wide-area time-delay stabilization and control of multi-machine power system based on Hamilton theory[J].Power System Protection and Control,2016,44(19):17-24 |
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| 摘要: |
| 针对非线性时滞多机电力系统，将局域信号与远程信号都纳入控制器设计中，根据全局条件下信号时滞的差异性，建立广域时滞非线性多机电力系统的端口可控Hamilton (PCH)模型。该模型以汽门开度为控制量，考虑了扰动给系统带来的影响。以此模型为基础，针对某个形式的H函数给出了含有该H函数作为部分能量函数的Lyapunov泛函及一系列相应的稳定条件。通过“能量整形”技术，将一般电力系统的PCH模型转化为具有特定形式H函数的PCH模型，并应用给出的稳定条件设计相应的全状态反馈控制。最后以3机9节点系统为例，以时域仿真的结果验证了扰动下非线性时滞控制器的有效性。 |
| 关键词: 时滞 端口可控制Hamilton系统 非线性多机电力系统 广域测量系统 |
| DOI：10.7667/PSPC151758 |
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| Nonlinear wide-area time-delay stabilization and control of multi-machine power system based on Hamilton theory |
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GUAN Linyan,ZHOU Hong,HU Wenshan
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(School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China)
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| Abstract: |
| In view of the nonlinear time-delay multi-machine power system, involving the local and remote signals into the controller design and considering the diversity of the signal delays, a port controllable Hamilton model is constructed. The model takes steam valve as control variable and takes into account the influence of the disturbance. Based on the proposed model, aiming at a certain form of H function, the corresponding Lyapunov function with some specific H function as its part energy function is given to derive a delay-dependent stability criterion. By energy-shaping method, the PCH model of a general power system could be transformed into a PCH model with specific H function and the corresponding full-state feedback controller is designed according to the stable criterion. Finally, taking a 3-machine 9-bus power system as an example, the simulation results show that the performance of controller is effective in the nonlinear time-delay system with disturbance. |
| Key words: time-delay port controllable Hamilton system nonlinear multi-machine power system wide-area measurement system |
