| 网络化多机电力系统的分布协调控制和暂态联结稳定性分析 |
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| 引用本文： | 马连增,陈雪波.网络化多机电力系统的分布协调控制和暂态联结稳定性分析[J].控制与决策,2017,32(11):1980-1984. |
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| 作者姓名： | 马连增 陈雪波 |
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| 作者单位： | 辽宁科技大学电子与信息工程学院,辽宁鞍山114051,辽宁科技大学电子与信息工程学院,辽宁鞍山114051 |
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| 基金项目： | 国家自然科学基金项目(61433004). |
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| 摘 要： | 针对n个同步发电机互联电力系统暂态过程中出现的发电机失步现象,为了控制任意两台电机之间的转角差,提出一种新的分布式协调控制设计方法.将整个系统对对分解为$n-1$个子系统,设计分布式协调控制律,估计子系统的局部稳定区域,得到判定联结稳定性的定理;通过一个三机系统的算例,给出判别方法的应用.算例表明,这种判别方法能够简化系统稳定性分析的复杂性,并能够降低计算量.
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| 关 键 词： | 多机电力系统 分布协调控制 暂态联结稳定性 |
Distributed coordination control and transient connective stability of networked multi-machine power systems |
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| MA Lian-zeng and CHEN Xue-bo.Distributed coordination control and transient connective stability of networked multi-machine power systems[J].Control and Decision,2017,32(11):1980-1984. |
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| Authors: | MA Lian-zeng and CHEN Xue-bo |
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| Affiliation: | School of Electronic and Information Engineering,University of Science and Technology Liaoning,Anshan 114051,China and School of Electronic and Information Engineering,University of Science and Technology Liaoning,Anshan 114051,China |
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| Abstract: | Considering transinent stability of an n-machine interconnected power system when a large disturbance lead to a loss of synchronism, a novel distributed coordination control methed is proposed in order to control the rotor angle error to zero. A pairwise decomposition of the model is performed into $n-1$ interconnected subsystems. A distributed coordination controller is designed to guarantee the local stability of subsystems. The stability regions for each disconnected subsystems are estimated. Then, an aggregate model is constructed involving a vector Lyapunov function and the subsystem-region estimates is used to determine the stability of the overall system. A 3-generator example is given to illustate the effectiveness of the proposed method. This judging method can simplifly the complexity of system stability analysis and reduce the computation load. |
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