DC grids, including highvoltage dc (HVdc) transmissions, midvoltage dc (MVdc) distributions, and low-voltage dc (LVdc) supply systems, have elicited widespread concern and rapidly developed in recent years [1]-[6]. Voltage and power can be flexibly controlled because power electronic equipment is widely used in dc grids. Moreover, the conversion stage for energy storage and renewable energy systems in dc grids can be simplified. Such simplification can reduce cost, enhance power conversion efficiency, and improve power quality.

中文翻译：

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更前瞻性地看待 IGCT：揭示直流电网的一个有希望的选择

直流电网，包括高压直流 (HVdc) 输电、中压直流 (MVdc) 配电和低压直流 (LVdc) 供电系统，近年来引起了广泛关注并迅速发展 [1]-[6]。由于电力电子设备广泛应用于直流电网，因此电压和功率可以灵活控制。此外，可以简化直流电网中储能和可再生能源系统的转换阶段。这种简化可以降低成本，提高电源转换效率，并改善电能质量。