New paradigms for rigorous modeling and fast solution of large-scale EMC problems

大规模 EMC 问题的严格建模和快速解决方案的新范例

• 批准号: RGPIN-2018-05289
• 负责人: SHESHYEKANI, Keyhan
• 金额: $ 2.4万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=754031
• 关键词: New; paradigms; rigorous; modeling; fast

Naturally or intentionally created Electromagnetic (EM) fields manifest their adverse effects in the form of malfunction or definitive failure of components and systems. Critical infrastructures in general and electrical power systems in particular must ensure continuous and reliable operation when subjected to EM fields generated by different sources such as geomagnetic storm and lightning return stroke current. The detrimental impacts of lightning current and its associated electromagnetic fields -also called lightning electromagnetic pulse (LEMP)- on electrical networks (power system, communication sites and control centers) have long been known. Regarding the geomagnetic fields, a realistic example is the blackout in the Hydro-Quebec power system in 1989 which is attributed to a large solar activity. It is always essential to assess adverse effects of EM fields on electrical power networks, communication systems, oil pipelines, electrified transportation systems and etc. The accurate quantification of the above-mentioned EM fields and their adverse effects is viewed as a large-scale Electromagnetic Compatibility (EMC) problem involving complex propagation media, i.e. inhomogeneous, dispersive ground and irregular terrain. Accurate modeling of such large-scale EMC problem is beyond the capability of the existing computational packages mainly due to their computational performance limitations and modelling effort concerns. The objective of this proposal is to develop rigorous and high-performance computational methods for the efficient modeling and solution of stringent large-scale EMC problems. The computational platform accommodates advanced version of numerical methods in electromagnetics such as Finite Difference Time Domain and Method-of-Moments designed and customized for large multiscale EMC problems. The proposed research program therefore aims to develop: (1) a unified computational framework, capable of analyzing realistic problems involving inhomogeneous and dispersive ground, nonlinearities, curved or rough propagation terrain, (2) high-performance computation algorithms used in conjunction with hardware-based parallelization techniques and (3) efficient algorithms for heterogeneous modeling and simulation of interaction among propagated EM fields and complex networks with arbitrary topology and elements. The long-term objective of the proposed research program is to provide the scientific community and engineers with advanced, high performance robust tools for full-wave modeling of different types of large-scale EMC problems with particular reference to grounding systems, geomagnetic disturbances, lightning electromagnetic fields and their interaction with complex electrified infrastructures.

自然或故意创建的电磁（EM）领域以组件和系统的故障或确定性故障的形式表现出它们的不利影响。尤其是一般和电力系统的关键基础设施必须确保在受到不同来源（例如地磁风暴和闪电返回中风电流）产生的EM领域时的连续可靠操作。雷电电流及其相关的电磁场的不利影响 - 也称为闪电电磁脉冲（LEMP） - 对电网（电力系统，通信站点和控制中心）的有害影响已知。关于地磁场，一个现实的例子是1989年水力发电界电力系统中的停电，这归因于大型太阳能活动。评估EM领域对电力网络，通信系统，油管管道，电气运输系统等的不利影响总是至关重要的。准确量化上述EM领域及其不良反应被视为大规模电磁兼容性（EMC）问题，涉及复杂的大传播介质，即涉及复杂的大传播介质，即智中的emomogene terrain terrient andrig recrig recrig recrig recrig rescortim irnecrigrecrign and irrecrig rescriend。这种大规模EMC问题的准确建模超出了现有计算套件的能力，这主要是由于其计算性能限制和建模工作的关注。该提案的目的是开发严格且高性能的计算方法，以实现严格的大规模EMC问题的有效建模和解决方案。计算平台可容纳电磁学中的高级数值方法，例如有限差差时域和为大型多尺度EMC问题设计和定制的杂物。因此，拟议的研究计划的目的是：（1）一个统一的计算框架，能够分析涉及现实的问题，涉及不均匀和分散的基础，非线性，弯曲或粗糙的繁殖地形，（2）高性能计算算法与硬件基于硬件的平行技术以及（3）与（3）有效的alterys相加的高性能计算算法。具有任意拓扑和元素的传播EM领域和复杂网络。 拟议的研究计划的长期目标是为科学界和工程师提供高级，高性能的强大工具，用于对不同类型的大规模EMC问题进行全波建模，特别是参考接地系统，地磁干扰，闪电电磁场及其与复杂电力基础设施的交互。