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Accelerating detailed simulations of an HVDC system based on modular multilevel converters in a multi-core environment.

机译:在多核环境中,加速基于模块化多电平转换器的HVDC系统的详细仿真。

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摘要

The topology of the Modular Multilevel Converter (MMC) was introduced in 2001. The MMC topology is well suited for the High Voltage Direct Current (HVDC) system. The MMC-HVDC topology has several advantages over other topologies: (i) it is based on simple converter cells, (ii) it has easy voltage and current scaling, (iii) it features distributed capacitive energy storage, (iv) it oers straightforward protection schemes, (v) it has low switching frequency and losses. However, the simulation speed of a detailed MMC model in an HVDC system is slow due to the computational burden.;In this thesis, with the help of PSCAD/EMTDC, a new approach in a multi-core CPU environment has been implemented to speed up the simulations of the HVDC system based on the MMC topology. This approach is evaluated by comparing results with a single-core average model, a single-core detailed model and a eight-core detailed model. This thesis also includes an analysis selecting the best sorting algorithm.
机译:模块化多电平转换器(MMC)的拓扑结构于2001年推出。MMC拓扑结构非常适合高压直流(HVDC)系统。 MMC-HVDC拓扑相对于其他拓扑具有多个优点:(i)基于简单的转换器单元;(ii)具有容易的电压和电流缩放比例;(iii)具有分布式电容性能量存储功能;(iv)简单易用保护方案(v)具有较低的开关频率和损耗。但是,由于计算量大,详细的MMC模型在HVDC系统中的仿真速度较慢。;本文借助PSCAD / EMTDC,在多核CPU环境中实现了一种新的方法来加速基于MMC拓扑的HVDC系统仿真。通过将结果与单核平均模型,单核详细模型和八核详细模型进行比较来评估该方法。本文还包括选择最佳排序算法的分析。

著录项

  • 作者

    Wang, Xiaodan.;

  • 作者单位

    University of Colorado at Denver.;

  • 授予单位 University of Colorado at Denver.;
  • 学科 Electrical engineering.
  • 学位 M.S.
  • 年度 2015
  • 页码 82 p.
  • 总页数 82
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 石油、天然气工业;
  • 关键词

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