The invention relates to the technical field of variable-speed pumped storage alternating-current excitation converters, in particular to a three-phase integrated NPC three-level topology preparation method and device, and the method comprises the steps: arranging three crimping type IGBT power assemblies in a stacking manner; the three crimping type IGBT power assemblies are respectively set as A, B and C three-phase modules; the A-phase module, the B-phase module and the C-phase module are crimped into a whole through a three-phase integrated NPC three-level topology crimping tool; according to the three-phase integrated NPC three-level topology crimping tool, the level power assemblies are crimped into an organic whole through the three-phase integrated NPC three-level topology crimping tool, the structure is compact, reliable and stable, and the three-phase integrated NPC three-level topology crimping tool has the advantages of being small in size, high in power density and high in reliability and is suitable for the working condition that an extra-large-capacity converter is needed but the site is limited; the invention particularly relates to a variable-speed pumped storage unit.
本发明涉及变速抽蓄交流励磁变流器技术领域,尤其是一种三相一体式NPC三电平拓扑制备方法及其装置,包括,叠堆设置三个压接式IGBT功率组件;将三个压接式IGBT功率组件分别设置为A、B、C三相模块;采用三相一体式NPC三电平拓扑压接工装将A、B、C三相模块压接成一个整体;将A、B、C三相模块和直流母排相连,本发明通过三相一体式NPC三电平拓扑压接工装将电平功率组件压接组成一个有机整体,结构紧凑,可靠稳定,具备体积小,功率密度高,可靠性高的优点,适用于需求特大容量变流器但场地有限的工况,特别是变速抽水蓄能机组。
Three-phase integrated NPC three-level topology preparation method and device
一种三相一体式NPC三电平拓扑制备方法及其装置
2024-04-19
Patent
Electronic Resource
Chinese
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