...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Iranian Journal of Science and Technology, Transactions of Electrical Engineering >Dynamic Analysis of Multi-machine Power Systems Facing Symmetrical and Asymmetrical Simultaneous Faults
【24h】

Dynamic Analysis of Multi-machine Power Systems Facing Symmetrical and Asymmetrical Simultaneous Faults

机译：对称和不对称同时故障面临多机电力系统的动态分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents a new method for dynamic analysis of multi-machine power systems due to symmetrical and asymmetrical simultaneous faults. The method uses the time-varying-quasi-stationary space phasors-based sequence networks for dynamic analysis of power systems. In this paper, a new technique is proposed based on the concept of space phasors, which allows the modelling of synchronous machines as current source space phasors in the sequence networks. Therefore, the admittance-type representation of sequence networks is used for dynamic analysis of power systems facing simultaneous faults. In transient stability programs, the three-phase representation of the networks is used for dynamic analysis of faulty power systems in balanced or unbalanced conditions. But, the proposed method uses the positive-sequence network in the pre-fault and post-fault conditions and uses a combination of sequence networks during the fault time that enhance the efficiency of the simulations. Moreover, the proposed method is capable of considering the negative-sequence network dynamics in power systems dynamic analysis. Judgment of results between the proposed method and two of the commercial software has been accomplished for a single-machine-infinite-bus system, which validates the method. In addition, the method has been tested for the 30-busbar IEEE power system as a template of a standard power system. Simulation results show the effectiveness of the proposed method. The content of this paper should be of interest to engineers for power system transient stability, dynamic stability and protection.
机译：本文由于对称和不对称的同步故障，提出了一种新的多机电力系统动态分析方法。该方法使用基于时变的准静止空间相激节序列网络进行动力系统的动态分析。在本文中，提出了一种基于空间相量概念的新技术，这允许同步机的建模作为序列网络中的电流源空间相位。因此，序列网络的导纳型表示用于对同时断层的电力系统的动态分析。在瞬态稳定性程序中，网络的三相表示用于平衡或不平衡条件下的故障电力系统的动态分析。但是，所提出的方法使用预故障和故障后的正序列网络，并在增强模拟效率的故障时间期间使用序列网络的组合。此外，所提出的方法能够考虑电力系统动态分析中的负序列网络动态。为单机 - 无限总线系统实现了所提出的方法和两个商业软件之间的结果的判断，该总线系统验证了该方法。此外，该方法已经测试了30母线IEEE电力系统作为标准电力系统的模板。仿真结果表明了该方法的有效性。本文的内容应该对电力系统瞬态稳定性，动态稳定性和保护的工程师感兴趣。

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