Power control on electric engine

[Gaëtan]

Hello,

I wish to make a power control on an electric engine.

Before It was needed a electronic card (MCE126) and a current sensor (ESMU) measuring of a phase.

Today, I want to use a Plus+1 controller, and I want to know if a function library is already created to make this regulation.

Or otherwise how I may make ?

Thanks for advance

[Gaëtan]

Hello,

Nobody to answer me ??

[Loader]

Hi, I don't help you but
have you look in the library...?
http://powersolutions.danfoss.com/products/plus-1-guide/plus-1-function-block-library/
Bye

[Gaëtan]

Thanks for your answer Loader.

Yes I kook in the library but I didn't find....

[bgtwuk]

Um

What is an electric engine? A new invention perhaps?

An electric motor or an internal combustion engine...

Pick one........ and we may help you.

Bgtwuk

[Gaëtan]

Hello bgtwuk,

Yes it's a power control with an electric motor.

I joined a MCE126 picture.

[Gaëtan]

Up....

[bgtwuk]

So what part do you need help with?

It seems that you do not have much experience with motors.

Tell me all about the motor, and what you need to do with it..

Bgtwuk

[Gaëtan]

Hello,

The characteristics of the motor are : 1500rpm, B35, 110kW, 400V.

I need to do a power control with a simple electric motor.

1 : The plus+1 microcontroller is programmed in current amplifier as an MCE126 electronic card, piloted by a JS1000 joystick. This part is ok, it works in my installation.

2 : A sensor measures the current which uses the engine. When the current is too high on the engine, the sensor takes back up information to the Plus+1 microcontroller  and the amplifier lowers the current sent in the hydraulic pump. Therefore more current is high on the electric motor less plus+1 send current in the pump. I do not know how to manage this part in the plus+1 microcontroler.

The MCE 126 electronic card made this function more or less automatically.

Did you understand my request and functioning?

[pinias]

Hello there,

mm looks like you have and electrohydraulic powerpackage, the hydraulic system is a close loop system and what you want to do is control the de EDC of the pump, am I right?

you are thinking based on old technology.

the MCE126 is tied to the 3Phase power so that it can detect an overload and de stroke the swash plate of the pump (or go to neutral) and avoid a stall on the electric motor.

depends on what you have in your system, but I guess you have a soft starter to drive the electric motor, that may not be have  a lot of featuers like protection for overload but should have basic features like current, voltaje and frequency monitoring which may be broadcasted in Modbus RTU.

I do have some electrohydraulic powerpacks what I do is to install a Gateway to convert from Modbus RTU to CAN and monitor all eletrcial parameters voltaje, current, frequency and so on. with all this information I can set up when I need a shutdown or disable (joystick disable).

probably you should think in something similar

what do you think?

[Gaëtan]

Hello pinias,

Indeed it is this type of operation.

Knowing the system with the MCE126 , I thought to do the same with the Plus + 1.

It takes maybe I think a system checking voltage, current and frequency of the electric motor.

[Johan_T]

So what part do you need help with?

It seems that you do not have much experience with Open Health Tools motors.

Tell me all about the motor, and what you need to do with it..

Bgtwuk

I don't think you needed to say "I don't think you have mu experience with motors". It doesn't offer anything to the conversation other than to imply that you are very experienced with motors. Don't be patronizing when people are asking for help.

You knew as well as I did when I read his post what he meant. There was no need for the sarcasm, although I'm sure it made you feel superior.

[Tor]

Hi Johan_T

I just want to say it was a 5 year old post.   

Jokes aside.
I agree with you, and it's good that you respond to when someone is stepping over the line.
Today, you are able to read in the forum as a guest, but you have to be a member to post. Which has changed since this post was written.
So I hope we don't see this kind of behavior anymore. And if you do, please let us know.

Thanks again Johan_T, and keep up the good work.

[Johan_T]

Hi Tor,

Yes I realised once I'd commented that it was a 5 year old post. I was just poking around the forum, I don't usually pay attention to dates.

I don't usually tend to say anything in those kinds of situations but I'll certainly highlight it to the admins if I come across it again. As far as I can tell everyone on here is extremely respectful and helpful though (I've been a lurker for a while now).

Best regards,

Johan