Working principle of solar container solid-state circuit breaker

What is a solid-state breaker?

The solid-state breaker concept replaces the traditional moving parts of an electromechanical circuit breaker with semiconductors and advanced software algorithms that control the power and can interrupt extreme currents faster than ever before.

Can a solid-state DC circuit breaker increase voltage and current ratings?

However, unlike AC systems, there is no zero-crossing for the current in DC systems, this makes the DC circuit breakers design more demanding. This paper presents the design of a solid-state DC circuit breaker (SSCB) in details using series and parallel configurations of IGBTs to increase the voltage and current ratings.

Why is a solid-state circuit breaker important?

Energy efficiency is a crucial aspect for all electrical installations, including those operating on islanded grids such as vessels with an onboard DC grid. Compared to other semiconductor technologies, ABB’s solid-state circuit breaker guarantees 70% less power losses during the conduction phase.

Should you use a solid state circuit breaker?

However, in certain applications, the benefits of using a solid state circuit breaker may outweigh the disadvantages making the solid state circuit breaker a viable option to consider. Solid state circuit breakers recently entered the marketplace for certain low voltage applications.

What is a smart solid-state circuit breaker?

Smart solid-state circuit breakers enable the digitalization of power distribution to meet the growing demands for renewable energy. Watch the webinar to explore Infineon’s solutions for protection, measurement, programmability, communication, and actuation. Smart circuit breakers combine multiple functions into one single device.

How are solid-state circuit breakers classified?

First, we categorize solid-state circuit breakers based on key features and subsystems, including power semiconductor devices, main circuit topologies, voltage clamping methods, gate drivers, fault detection methods, and commutation methods for power semiconductor devices.