Ship DC integrated power propulsion system and protection design method of system
A technology for electric propulsion and ships, which is applied in the field of protection design of ship DC integrated electric propulsion systems and systems, and can solve problems such as difficult realization of protection selectivity
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[0028] Such as figure 1 The single-line diagram of the ship's integrated DC power propulsion system shown. The output AC power of the synchronous generator set is rectified and converted into DC power through the diode rectifier module or IGBT rectifier module. The DC power passes through the fuse and is connected in parallel to the DC bus. The generator set can adopt variable speed Constant speed operation mode; after the battery pack or super capacitor converts the DC voltage through the DC / DC frequency conversion unit, it is connected in parallel to the DC bus through a fuse; the DC bus is divided into a port DC bus and a starboard DC bus, and the two DC buses on the left and right sides are connected in series. DC solid-state circuit breaker or fuse with isolation switch are connected in two solutions; the load includes several main propulsion motors and daily loads, which are connected to the DC bus through the inverter unit and the fuse respectively;
[0029] Such as figure...
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