一种具有非线性动力学模型的智能电网快速分布式控制
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作者单位:

1.华东交通大学电气学院;2.University of Essex,United Kingdom

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TP273

基金项目:

国家自然科学基金(11662002),江西省科技厅项目(20182BCB22009,20165BCB19011,20171BAB202029)资助


A Fast Distributed Control of Smart Grid with Nonlinear Dynamic Model
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Affiliation:

East China Jiaotong University

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    摘要:

    将储能技术作为新兴调节功率的手段引入智能电网,为保障电网平稳运行提供了新的思路。考虑到电力系统的暂态稳定问题与蜂拥控制问题的相似性,针对电力系统遭遇故障后恢复暂态稳定的控制问题,提出一种新的基于蜂拥算法的非线性分布式控制方案,该方案利用电机动力学方程中非线性项与系统频率之间的关系,引入系统状态反馈项以加快系统恢复暂态稳定性,通过外部储能设备对系统故障实施控制。最后,将该控制器应用在IEEE新英格兰39节点电力系统模型中,仿真结果验证了该控制器具有快速性、可实施性,并进一步验证了所设计的控制器在储能设备低容量条件下的有效性。

    Abstract:

    Introducing energy storage technology into the smart grid as a new means of regulating power provides new ideas for ensuring the smooth operation of the grid. Considering the similarity between the transient stability problem of power system and the swarm control problem, a new nonlinear distributed control scheme based on swarm algorithm is proposed for the control problem of recovering transient stability after a power system encounters a fault. The relationship between the non-linear term in the motor dynamics equation and the system frequency, the system state feedback term is introduced to speed up the system"s restoration of transient stability, and the system fault is controlled by external energy storage equipment. Finally, the controller is applied to the IEEE New England 39-node power system model. Simulation results verify that the controller is fast and implementable.The effectiveness of the designed controller under the condition of low capacity of energy storage equipment is further verified.

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历史
  • 收稿日期:2019-12-03
  • 最后修改日期:2021-03-29
  • 录用日期:2020-04-22
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