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面向实时仿真的小步长开关误差分析和参数设置

, PP. 120-129

Keywords: 大功率换流器,实时仿真,小步长仿真,换流器损耗,电感/电容(L/C)等效模型,开关误差,参数优化

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Abstract:

以固态开关为主要元件的换流器实时仿真是实现VSC-HVDC实时仿真的难点之一。目前电磁暂态仿真程序的理想开关模型因为计算效率的问题很难实现实时仿真。所以电感/电容(L/C)模型由于较高的计算效率而在实时仿真中被考虑采用。该文深入研究使用L/C模型的开关的准确性,证明了小步长算法的可行性。同时,考虑模型暂态误差产生的损耗,提出了完整的小步长模型的参数设置方法。所提出的模型建立在ADPSS上,并与PSACD上的理想模型进行了比较,验证了模型的准确性。

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