A kind of novel bridge type solid state fault current limiter is proposed

which is composed of diodes

thyristors

and current limiting reactance. In normal operation of the power system

the novel fault current limiter runs in the rectifying bridge mode

in which mode the influence on the system is very small. When short circuit fault occurs

the current limiting reactance can automatically limit the first peak of the short circuit current without delay. Through the control of the thyristors

the device can switch from rectifying bridge mode to current limiting mode to limit the value of short circuit current in steady state. Without bypass current limiting reactance and full control device

the scheme has a simple structure and high reliability. The control strategy of the scheme is proposed

and the feasibility and technological advantages of the scheme are proved by simulation analysis and comparison with the traditional bridge type fault current limiter.