多类型子模块MMC电磁暂态通用建模和实现方法Generalized Electromagnetic Transient Equivalent Modeling and Implementation of MMC With Arbitrary Multi-type Submodule Structures
许建中;徐义良;赵禹辰;赵成勇;
摘要(Abstract):
模块化多电平换流器(modular multilevel converter,MMC)电磁暂态高效建模的难点,在于对桥臂中大量结构相同的级联子模块(sub-module,SM)进行等效的同时保证消去的节点信息都可以被精确反解。提出一种针对多类型MMC的电磁暂态通用建模和实现方法,它对传统的单端口MMC和新近出现的双端口MMC都适用。同时提出一种MMC拓扑自动识别方法,可以大幅降低模型用户在对特定拓扑建模时候的工作量,同时绝大部分模型代码都可以继承。最后,在PSCAD/EMTDC中分别以单端口和双端口MMC为例,对所介绍的等效建模算法进行了验证,结果表明所提出的算法具有很强的通用性。
关键词(KeyWords): 模块化多电平换流器;电磁暂态;等效模型;多类型子模块;子模块拓扑识别
基金项目(Foundation): 国家自然科学基金资助项目(51607065)~~
作者(Author): 许建中;徐义良;赵禹辰;赵成勇;
Email:
DOI: 10.13335/j.1000-3673.pst.2018.2121
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