Topology of bipolar hybrid MMC-HVDC for overhead line transmission

被引：0
|
作者：
Zhang J. [1 ]
Tian X. [2 ]
Yan X. [1 ]
机构：
[1] State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding
[2] State Grid Tangshan Power Corporation, Tangshan
来源：
Zhang, Jianpo (zhangjianpo@126.com) | 1600年 / Automation of Electric Power Systems Press卷 / 41期
关键词：
Bipolar hybrid; DC link fault; Double clamp sub-module; Dual thyristor sub-module; Modular multilevel converter (MMC);
D O I：
10.7500/AEPS20160511008
中图分类号：
学科分类号：
摘要：
To solve the problem of flexible application of high voltage direct current (HVDC) systems in long distance bulk power overhead line transmission, based on modular multilevel converter (MMC) with double clamp sub-module topology and dual thyristor sub-module topology, a bipolar hybrid MMC based HVDC (MMC-HVDC) transmission system is designed not only to tackle the level of DC voltage, output capacity and DC fault suppression capability, but also to solve the great energy consumption or long DC link fault enduring issues. The equivalent circuit and fault blocking mechanism is analyzed under different DC link faults, and the system restart process is also designed. Finally, the hybrid HVDC is built in PSCAD/EMTDC simulation environment, and a variety of operating conditions and fault ride-through characteristics of the system are studied. Simulation results show that the bipolar hybrid system has not only flexible and diverse steady-state operation characteristics, but also DC fault ride-through and rapid recovery capabilities better suited to large capacity long distance overhead line transmission applications. © 2017 Automation of Electric Power Systems Press.
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页码：93 / 98and105
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