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I have tried to implement Space Vector Modulation in Simulink by simply supplying a three phase sinusoidal supply and then synthesising the SVm waveorms via the use of a SimPowerSystems inverter. I am having a problem in that the output signal is not as expected. There is a large 'chunk' of the...

Sorry I posted the same speed curve twice. Attached is the torque curvehttp://files.engineering.com/getfile.aspx?folder=07319379-4362-4a7f-9cff-0756aa2374d1&file=Torque_FLUX.jpg

The attached file is the speed curvehttp://files.engineering.com/getfile.aspx?folder=25c9c7ed-e2aa-4dc6-9cae-6c75d07fd8c0&file=Speed_FLUX.jpg

The attached figure is the torque curve.http://files.engineering.com/getfile.aspx?folder=6c61f144-c5af-4ce0-a650-80f119852207&file=Speed_FLUX.jpg

I am currently performing some transient simulations in FLUX (a finite element package released by Cedrat) with an induction motor. I have run the motor up to speed under no-load condition and everything seems to work as expected. Now, once loading the machine with a step torque (100 Nm) by...

I agree with edison123 and also did that calculation, I am not sure whether I can rewire it as described. But, if I can and then only need o apply 147V to the 220V side of the transformer and get the required 40V to the motor, then will the transformer not saturate??

The motor is a three phase squirrel cage induction motor as is the transformer. the transformer is connected a 380:220V transformer connected in delta-star respectively. By "soft starter" i mean the voltage (260V) that i will be supplying the transformer 220V side with can be trimmed from...

Unfortunately i dont have one of those? And to be honest I am not sure what you mean by "booster" transformer. Also - I need to have the motor start on soft-starter.

That machine is hard-wired onto the 380V 3-phase busbars of the lab. And it is the machine that drives the AC generator.

It is a squirrel cage induction motor. So that option goes out of the window. I think what I will do is leave th transformer out of the equation and rather use a completely different setup. I will drive a DC generator to power a DC machine. This machine is coupled to a synchronous generator...

Unfortunately I need to run the motor up to rated voltage (it is fo characterisation of the motor accrding to an IEC standard). I dont think I will be able to do this now that I think of it. Applying 260V to the 220V side of the transformer is probably not a good idea. I dont think? Like...

Thank you guys for your help. I will only ever be applying higher than rated value to the transformer (higher than 220V) when I perform a no-load (light-running) test on the machine under test. Thus, there will be minimal current (so nowhere near rated current of the transformer).

Thank you for your reply - I do realise that it is slightly higher than the rated nameplate value of the transformer. But what i meant was - Can i connect it the other way around, if I apply 220V and use the resulting voltage on the 380V side? (i.e. in reverse). Additionally, what is the limit...

Goodday I am going to be testing a new 55kW induction machine rated at 440V and 93A. The supply I have in the laboratory will be via an AC generator (driven through a synchronous machine). The AC generator gives me 260V out. As you may have noticed, I need 440V to the induction motor under...

I have implemented a phase locked loop (PLL) in SIMULINK. I am just having a few problems in attaining the phase angle step response of the system. The system takes a power frequency signal (at 50Hz) which has a step change in phase angle at a predefined time (0.1s). This is done by taking...

Thank you so much sir. I was being quite an idiot in this regard.

I would like to convert a simple ramp input into a saw tooth waveform with period 2*pi in SIMULINK. the old simulink used to have a block for this (called the 'mod' block). If anyone could help me that would be greatly appreciated. Thank you.