Naming of dc circuit breakers in energy storage power stations

What is DC circuit breaker technology?

The development of flexible AC transmission and multi-terminal DC grid is in an urgent demand for DC circuit breaker (DCCB) technology with faster switching speed, strong breaking capacity, higher reliability, and a better economy. In this paper, mechanical DCCBs, solid-state DCCBs, and hybrid DCCBs are discussed and summarized.

What are the different types of circuit breakers?

Mainstream circuit breakers include mechanical type, solid-state type and hybrid type. The mechanical DCCB use the mechanical switch parallel with the transfer circuit to realize the DC breaking in the DC system. Solid-state DCCB uses the semiconductor switch to interrupt the current.

What is a solid-state circuit breaker?

Compared with the traditional circuit breaker, ABB's solid-state circuit breaker replaces the traditional moving parts of the electronic mechanical circuit breaker with power electronic equipment and advanced software algorithms, which can control the power and break the current at a faster speed.

What is a reference in a solid-state circuit breaker?

References provides a comprehensive review of various solid-state circuit breaker technologies. Based on the different types of high voltage direct current circuit breaker in which the energy absorption path is located, the existing researches were summarized and sorted out in reference .

How to design a distribution network circuit breaker?

When designing a distribution network circuit breaker, the coordination, topology, and stability of the circuit breaker should be considered comprehensively. In the design and selection of the solid-state circuit breaker, it can be analyzed and designed in combination with the main on-off branch or breaking branch.

What is the breaking current capacity of a DCCB circuit breaker?

Later, the BBC company in Europe developed a mechanical DCCB prototype with a breaking capacity of 500kV/2kA, which improved the breaking voltage but compared with the previous GM company's mechanical circuit breaker, the breaking current capacity is relatively weak.