With the rapid development of DC power systems and the increasing demand for DC circuit
breakers, electromagnetic repulsive drives-based Thomson coil actuators (TCA) are widely …

The operational efficiency of ultrafast actuators used as drives in high-voltage direct-current
breakers is at best 5%. To boost their efficiency, the design of the energizing circuit is crucial …

In order to meet the fast operation demands of DC circuit breakers, a high-speed vacuum
mechanical switch (VMS) driven by a repulsive force actuator is focused. To improve the …

Due to the increasing integration of renewable energy sources and power electronic loads
into the distribution grid, a deterioration of the grid power quality is expected. Consisting of a …

This paper assesses factors that impact the simulation accuracy of a 2-D finite element (FE)
transient axis-symmetric model of a Thomson coil (TC) actuator. Three-dimensional FE …

Linear pulse electromechanical converters (LPEC) of induction type allow providing a high
speed of the actuating element in the short active section and creating powerful power …

The electromagnetic repulsion mechanism (ERM) is highly consistent with the operation
mechanisms of the high‐speed switch (HSS) owing to its simple structure and fast response …

In this paper, a new design is provided so that the Z-source circuit breaker with a mechanical
switch operates quickly at a low-impedance fault. When the fault occurs, the Z-source circuit …

Purpose. The goal of the paper is to investigate the influence of the power circuits of the
linear pulse-induction electromechanical converters (LPIEC), which form the current pulse of …

Fast interruption is vitally important in high-voltage direct current (HVDC) system to suppress
the rapid increase of short current. In this paper, a multi-physics coupling simulation model …