The Hybrid HVDC Breaker An innovation breakthrough enabling reliable HVDC grids
The Hybrid HVDC Breaker An innovation breakthrough enabling reliable HVDC grids
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发表时间：
2012
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通讯作者：
M. Callavik;A. Blomberg;Jürgen Häfner;B. Jacobson
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作者：
M. Callavik;A. Blomberg;Jürgen Häfner;B. Jacobson
现有的机械高压直流断路器能够在几十毫秒内中断高压直流电流，但这太慢了，无法满足可靠的高压直流电网的要求。基于半导体的高压直流断路器可以很容易地克服运行速度的限制，但会产生很大的传输损耗，通常在电压源换流站损耗的30%范围内。为了克服这些障碍，ABB开发了一种混合型高压直流断路器。混合设计具有可忽略不计的传导损耗，同时保持超快的电流中断能力。本文将详细介绍混合直流断路器的设计原理和试验结果。介绍了高压直流混合式断路器的模块化设计。此外，还将讨论混合断路器在高压直流开关站设计中的应用。
SUMMARY Existing mechanical HVDC breakers are capable of interrupting HVDC currents within several tens of milliseconds, but this is too slow to fulfill the requirements of a reliable HVDC grid. HVDC breakers based on semiconductors can easily overcome the limitations of operating speed, but generate large transfer losses, typically in the range of 30 percent of the losses of a voltage source converter station. To overcome these obstacles, ABB has developed a hybrid HVDC breaker. The hybrid design has negligible conduction losses, while preserving ultra-fast current interruption capability. This paper will present a detailed description of the hybrid HVDC breaker, its design principles and test results. The modular design of the hybrid breaker for HVDC applications is described. Furthermore, the application of the hybrid breaker associated with the design of a HVDC switchyard will be discussed.