Hi, been reading lots of threads on here for the past week and learnt a lot but thought I would post up my problem for some help.
I am building some equipment for my home workshop and have been stuck by needing a 3 phase industrial motor up to 10kW but without 3 phase this is not going to happen. I realised I could run a 10kW single phase system so am planning a dedicated 45/50A supply for this project ad have a devised a way to power it.
I have been searching and reading until my head hurts and think I have a few options but am hoping to get some more suggestions.
My specs are:
Working RPM range: 2000-3200 (but am using a belt drive so this can be achieved through gearing)
Max torque at 3200 rpm: 25N.m (30 preferred)
Expected max. power 8kw with 9.6 available
Voltage: 48V
Current max: 200A
In-runner or out-runner type are both fine and a 12mm shaft would be the minimum but 12-20mm prefered. Ideally with a keyway or flat for the belt pulley. Sensored or sensorless - not sure which is best for me.
Water cooling would be desirable if possible but could go with forced air. It will be running for anything from 10 minutes up to several hours. (yes my electricity meter is going to be spinning but planning >12kW of solar on my new workshop).
Controller wise I need reliability over anything else. Some form of PC interface for RPM, power, temp, logging etc would be nice. Ability to have external RPM display, control and emergency stop would be good.
Budget wise I would like to hit the £300-400 mark for the motor and £200-350 for the controller. But I would also be willing to consider £700-1000 motors if it really was needed and would be from a very reliable source but that will blow my budget a bit.
I started out looking at the Rotomax 150 from Hobbyking but others have I been more recently looking at are:
Revolt 120 and 160 (look like a very good option, designed for paramotors so similar RPM and torque that I need, outrunner though so no water cooling)
Alien Power Systems (here in the UK) (ability to customise but only 12mm shaft, 1290s 80kv in currently £279 or sensorless for less. Outrunner style so should be good torque but unable to water cool)
Astro (looking at 3320 series, expensive at $695 + import and tax but look professional and seem highly regarded)
NeuMotors 4420/4425 (expensive at £900 but seem to be highly regarded)
Plettenberg (love the look of the Nova 15 with water cooling and have asked for a quite but expecting >£1000)
NT-power.EU (paramotor specific and looks awesome but no idea on price or availability, also have a good looking controller)
TP Power (same as Alien Power? but huge selection so got lost and would need to import)
Lehner Motoren (couldnt find anything suitable)
Controller wise I have not done much research but have looked at:
4QD (UK based and said to be reliable and have a 300A model that looks suitable)
Kelly controllers ( bit lost on what to select)
RC ones are tempting due to cost but I doubt they would be reliable enough.
Another option I have is to run 2 motors. My power supply would be capable of providing 2x 24V @ 200A or a single 48V @ 200A so could run them independently at 24V 200A or in parallel at 48V 100A if that would make a more reliable system but then I would need 2x controllers, belts, mounts and pulleys etc and I think I will get better power from one larger motor.
On a different note and will search for this in the other sections I am looking for poly-V belt pulleys. My usual suppliers in the UK have poly-V belts but no pulleys.
Any tips, advice and suggestions will be greatly received! I am having to learn all this as I used to race RC cars back in the days of brushed 540 motors and Sanyo 1700mAh SC-RC NiCd batteries! I remember trying to talk to people about the benefits of brushless but very few could see how much of a difference they would make back then.
I am building some equipment for my home workshop and have been stuck by needing a 3 phase industrial motor up to 10kW but without 3 phase this is not going to happen. I realised I could run a 10kW single phase system so am planning a dedicated 45/50A supply for this project ad have a devised a way to power it.
I have been searching and reading until my head hurts and think I have a few options but am hoping to get some more suggestions.
My specs are:
Working RPM range: 2000-3200 (but am using a belt drive so this can be achieved through gearing)
Max torque at 3200 rpm: 25N.m (30 preferred)
Expected max. power 8kw with 9.6 available
Voltage: 48V
Current max: 200A
In-runner or out-runner type are both fine and a 12mm shaft would be the minimum but 12-20mm prefered. Ideally with a keyway or flat for the belt pulley. Sensored or sensorless - not sure which is best for me.
Water cooling would be desirable if possible but could go with forced air. It will be running for anything from 10 minutes up to several hours. (yes my electricity meter is going to be spinning but planning >12kW of solar on my new workshop).
Controller wise I need reliability over anything else. Some form of PC interface for RPM, power, temp, logging etc would be nice. Ability to have external RPM display, control and emergency stop would be good.
Budget wise I would like to hit the £300-400 mark for the motor and £200-350 for the controller. But I would also be willing to consider £700-1000 motors if it really was needed and would be from a very reliable source but that will blow my budget a bit.
I started out looking at the Rotomax 150 from Hobbyking but others have I been more recently looking at are:
Revolt 120 and 160 (look like a very good option, designed for paramotors so similar RPM and torque that I need, outrunner though so no water cooling)
Alien Power Systems (here in the UK) (ability to customise but only 12mm shaft, 1290s 80kv in currently £279 or sensorless for less. Outrunner style so should be good torque but unable to water cool)
Astro (looking at 3320 series, expensive at $695 + import and tax but look professional and seem highly regarded)
NeuMotors 4420/4425 (expensive at £900 but seem to be highly regarded)
Plettenberg (love the look of the Nova 15 with water cooling and have asked for a quite but expecting >£1000)
NT-power.EU (paramotor specific and looks awesome but no idea on price or availability, also have a good looking controller)
TP Power (same as Alien Power? but huge selection so got lost and would need to import)
Lehner Motoren (couldnt find anything suitable)
Controller wise I have not done much research but have looked at:
4QD (UK based and said to be reliable and have a 300A model that looks suitable)
Kelly controllers ( bit lost on what to select)
RC ones are tempting due to cost but I doubt they would be reliable enough.
Another option I have is to run 2 motors. My power supply would be capable of providing 2x 24V @ 200A or a single 48V @ 200A so could run them independently at 24V 200A or in parallel at 48V 100A if that would make a more reliable system but then I would need 2x controllers, belts, mounts and pulleys etc and I think I will get better power from one larger motor.
On a different note and will search for this in the other sections I am looking for poly-V belt pulleys. My usual suppliers in the UK have poly-V belts but no pulleys.
Any tips, advice and suggestions will be greatly received! I am having to learn all this as I used to race RC cars back in the days of brushed 540 motors and Sanyo 1700mAh SC-RC NiCd batteries! I remember trying to talk to people about the benefits of brushless but very few could see how much of a difference they would make back then.