Chinese Marine Propulsion
- Thread starter jobjed
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It is a gear box and electric motor setup for unmanned boat. The aimed problem to solve is large low-speed permanent magnet motor which is too expensive and too large limitting the useful payload of boat. So it seems (summary does not say) that the solution is a high speed small (probably asynchronous induction motor) motor together with gear reduction. To make it compact, the motor shaft and propeller shaft are arranged side by side.A patent for a certain propulsion system arrangement (?) for unmanned ships. Could someone explain the summary to me, as I'm having trouble understanding the technical Chinese.
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by78
General
Thanks!
by78
General
A table from Ma Weiming's latest paper on marine propulsion. It roughly compares China's medium-voltage DC IPS system with a certain medium-voltage AC foreign system. The Chinese system has higher power densities (10% volumetric and 21% gravimetric), higher operational stability, and rated efficiency (+2%).
The full paper is posted below, which also talks about applying IPS tech to hybrid/electric aircraft and urban transit systems.
The full paper is posted below, which also talks about applying IPS tech to hybrid/electric aircraft and urban transit systems.
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this is good and the tech here seems like what they already have for PHEVs. Note the 75C as the high rate of discharge of energy. That's pretty good.
And civilian ships already use 180 wh/kg LFP battery here, which also seems expected. I don't know why their testing only used 80 wh/kg battery, except maybe they were just using this config for study/research.
I'd be curious when the naval ships will use this. They've done so much work in plugin hybrid for PHEVs, that it seems silly to not be ahead in adoption of this for shipping.
And civilian ships already use 180 wh/kg LFP battery here, which also seems expected. I don't know why their testing only used 80 wh/kg battery, except maybe they were just using this config for study/research.
I'd be curious when the naval ships will use this. They've done so much work in plugin hybrid for PHEVs, that it seems silly to not be ahead in adoption of this for shipping.
looks like CSSC is also continuing to get further into more complicated, high speed diesel engines
And it's also behind the effort in battery electric shipping, diesel hybrid propulsion, power batter ships, oil electric hybrid tugboat. So, it looks like they are involved in electrifying marine propulsion.
And it's also behind the effort in battery electric shipping, diesel hybrid propulsion, power batter ships, oil electric hybrid tugboat. So, it looks like they are involved in electrifying marine propulsion.