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首页> 外文期刊>Journal of Modern Power Systems and Clean Energy >Large-signal modeling of three-phase dual active bridge converters for electromagnetic transient analysis in DC grids
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Large-signal modeling of three-phase dual active bridge converters for electromagnetic transient analysis in DC grids

机译：三相双有源桥式变换器的大信号建模，用于直流电网中的电磁瞬态分析

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摘要

The three-phase dual active bridge (3p-DAB) converter is widely considered in next-generation DC grid applications. As for traditional AC grids, the successful integration of power electronic converters in DC grids requires accurate time-domain system-level studies. As demonstrated in the existing literature, the development and efficient implementation of large-signal models of 3p-DAB converters are not trivial. In this paper, a generalized average model is developed, which enables system-level simulation of DC grids with 3p-DAB converters in electromagnetic transient type (EMT-type) programs. The proposed model is rigorously compared with alternative modeling techniques: ideal-model, switching-function and state-space averaging. It is concluded that the generalized average model provides an optimal solution when accuracy of transient response, reduction in computation time, and wideband response factors are considered.
机译：三相双有源桥（3p-DAB）转换器在下一代DC电网应用中被广泛考虑。对于传统的交流电网，功率电子转换器在直流电网中的成功集成需要准确的时域系统级研究。正如现有文献所证明的那样，开发和高效实现3p-DAB转换器的大信号模型并非易事。在本文中，开发了一种通用平均模型，该模型可以在电磁暂态类型（EMT类型）程序中使用3p-DAB转换器对DC电网进行系统级仿真。将所提出的模型与替代建模技术进行了严格比较：理想模型，切换函数和状态空间平均。结论是，当考虑瞬态响应的准确性，计算时间的减少和宽带响应因子时，广义平均模型提供了最佳解决方案。

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