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首页> 外文期刊>Advances in power electronics >Fault Handling Methods and Comparison for Different DC Breaker Topologies and MMC Topologies of the HVDC System
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Fault Handling Methods and Comparison for Different DC Breaker Topologies and MMC Topologies of the HVDC System

机译：HVDC系统的不同直流断路器拓扑和MMC拓扑的故障处理方法和比较

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The HVDC system has many significant benefits and is widely used around the world. The protection of HVDC system is always an issue, which should be solved. This paper presents the working principle of different protection schemes. The advantages and disadvantages of these protection schemes are also introduced. In order to solve the HVDC fault, two protection strategies are proposed. One design focusses on the topologies of the HVDC breaker in the HVDC line, such as all-solid HVDC breaker, resonant HVDC breaker, and hybrid HVDC breaker. The other design is from the viewpoint of converter topology, which has two types. One type generates the counter-emf in arms, such as full bridge MMC, hybrid MMC, and clamp-double MMC. The other type cuts off the current path from the AC side to the DC side, which is also introduced in this paper. Some performances of these topologies are compared, such as switching time and efficiency.
机译：高压直流输电系统具有许多显着的优点，并且在世界范围内得到广泛使用。高压直流输电系统的保护始终是一个需要解决的问题。本文介绍了不同保护方案的工作原理。还介绍了这些保护方案的优缺点。为了解决高压直流输电故障，提出了两种保护策略。一种设计专注于HVDC线路中HVDC断路器的拓扑，例如全固态HVDC断路器，谐振HVDC断路器和混合HVDC断路器。从转换器拓扑的角度来看，另一种设计有两种类型。一种类型在臂中生成反电动势，例如全桥MMC，混合MMC和双钳位MMC。另一种类型则切断了从交流侧到直流侧的电流路径，本文也对此进行了介绍。比较了这些拓扑的一些性能，例如切换时间和效率。

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