...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Generation, Transmission & Distribution, IET >Markovian switching model and non-linear DC modulation control of AC/DC power system
【24h】

Markovian switching model and non-linear DC modulation control of AC/DC power system

机译：交直流电力系统的马尔可夫切换模型和非线性直流调制控制

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Since the power system is actually a continuous-discrete hybrid system jointly driven by continuous time and random discrete events, a Markovian switching model of AC/DC power system is established to reflect the operating state of the system. Based on the model, a novel non-linear DC modulation control with time-delay compensation is derived to improve the transient rotor-angle stability of the entire AC/DC power system. The main contributions are: (i) the external events are described as Markovian jumps in system model parameters to reflect the random discrete characteristic of system operating. Meanwhile, the Markovian state transition rates are replaced by the outage rates and repair rates, which avoids expensive computation when the numbers of system operating modes are large; (ii) The time delays are regarded as a kind of bounded disturbance depending on system state and input. By a robust compensation control, the negative influence of time delay disturbance can be eliminated. Simulation performed on a dual-infeed AC/DC system shows the effectiveness of the proposed method in improving the transient stability of the power system.
机译：由于电力系统实际上是由连续时间和随机离散事件共同驱动的连续离散混合系统，因此建立了AC / DC电力系统的马尔可夫切换模型来反映系统的运行状态。基于该模型，推导了一种新型的带时滞补偿的非线性直流调制控制，以改善整个交流/直流电力系统的瞬时转子角稳定性。主要贡献是：（i）外部事件被描述为系统模型参数中的马尔可夫跳跃，以反映系统运行的随机离散特征。同时，将马尔可夫状态转换率替换为中断率和修复率，从而避免了在系统操作模式数量很大时进行昂贵的计算； （ii）根据系统状态和输入，时间延迟被视为一种有界干扰。通过强大的补偿控制，可以消除延时干扰的负面影响。在双馈AC / DC系统上进行的仿真表明，该方法在提高电力系统的暂态稳定性方面是有效的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号