How Does 500a High Frequency Rectifier Work?

Plating power supply technology:

Plating power supply is to converter line frequency AC current into different voltage & frequency & waveform direct current equipment. In the thyristor main apply &#;rectification&#; technology, while in high frequency rectifier switching power supply both use &#;rectification&#; and &#;inverter&#; technology. Plating power supply main formed by circuit and control circuit.

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Plating power supply evolution:

Electro plating power supply provide power supply to a variety of plating bath. Plating can be divided into direct current plating, cycle pole reverse plating, and pulse electroplating etc.. Early plating power supply used by AC motors &#; DC generator units, since the s has gradually been replaced of power electronic devices composed plating power supply.

Electroplating machine rectifier voltage and ampere:

Direct Current plating power supply: low-voltage, high-current DC power supply voltage is generally not more than 48V, requiring continuous adjustable; output current can be up to thousands of ampere. Electroplating power supply powered directly by the city power. In order to improve the plating power supply machine&#;s power factor, DC electroplating power supply rectification current mostly adopting non-controlled rectifier circuit, but the voltage regulator is completed on the front side of main transformer AC voltage regulator. Considering the low voltage and high current of plating power supply, the rectifier circuit is often used with dual star balancing reactor circuit. Voltage regulator most stepless auto-transformers, motors can be used by remote control, the disadvantage is easy to wear brushes, regulators response slow by time. The disadvantage with stable reactor as a regulator is low power factor. With thyristor three-phase AC voltage regulator voltage regulator, there are also disadvantages of low power factor, but response speed and control results better than above type.

If you are looking for more details, kindly visit 500a High Frequency Rectifier.

Specification and parameter:

Plating power supply Input voltageSingle phase 220V AC, 3 phase 380V/415V/440V 50-60Hz, suggest to use 3 phaseOutput voltage6V/12V/15V/18V/24V/36V/48V optional or according to customers&#; requestOutput current0-500A (Random optional)Voltage stability&#;1%Current stability&#;1%Ripple factor1%-2%Efficiency&#;90% Stabilization modeCurrent stabilization/Voltage stabilization (Switchable easily)Adjustment rangeVoltage/Current from 0-100% continuously adjustable within rated rangeCooling systemAir cooling/Water cooling/Oil coolingControl methodManual/PLCDisplay contentsVoltage meter/Current meter/Working/Over temp/Error, etc..Protection methodInput over voltage/Under voltage/Over current/Output short/Over heating self protection etc..Operating temperature-20-50&#;Ambient temperature-30-65&#;Ambient humidity&#;90%Working loadingFull capacity operation, more than 1,000 meters above sea level, reduced load operation

High frequency switching rectifier, also known as switching power supply.

A new type electroplating power supply equipment &#; high frequency switching power supply.

It has the advantages of waveform smoothness of silicon rectifier and convenient voltage regulation of thyristor rectifier, the highest current efficiency (up to 90%), the smallest volume, is a promising rectifier. The manufacturing technology has solved the power problem, and the high-power switching power supply from thousands of amps to tens of thousands of amps has entered the practical stage of production.

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Dear All,

I understand, if probably most of you will shake their head reading 500 kW, but please bear with my post.

I was looking for quite a challenge for a project for my master's degree, and approached an eccentric professor, who immediately told me he needed a 500 kW 3-phase rectifier nobody is interested in doing. I am fascinated by it.

I have built a lot of power electronic circuits, but never more than 10 kW. The professor insists that 'there is not much of a difference'. However, I am confuzed about the controling, and overall how different such a high power converter is. I understood, that I will have to probably interleave it? IGBT or GaN MOSFET?

I would really appreciate honest advice, on whether this is even possible, and maybe some suggestions on resources I could further use. I have 3 months to complete this project, and would still like to get reasonable amount of sleep
I have plenty of 'theoretical' knowledge, but feel a bit insecure with the practicality of the whole project.

Thank you very much. You will agree that the specification is somewhat incomplete, as it does not mention to what voltage will be made such rectification, which would supposedly be for 220Vac / 380Vac consumption voltage? Or for some industrial application in the kilo volt range? You are aware that it is not child's play Without having clear requirements of robustness/safety/cost in terms of innovation to be achieved, could it be said that any solution would be accepted by the academic committee? Oh yes, I am remiss about the specification, I apologize.

This inverter should be tied to the mains, I am not quite sure what the highest voltage level available at the university is, but I am sure this application should not go into high voltage.

This should be a prototype which should provide a working example while fulfilling the requirements. Safety and cost are not really part of the picture.

It should be a learning experience. I understand that my committee is not like a consumer that will have high expectations for me, but nonetheless I would perfer this not to turn into a nightmare.

This inverter should be tied to the mains, I am not quite sure what the highest voltage level available at the university is, but I am sure this application should not go into high voltage.

Now I'm confused, you initially mentioned a 'rectifier' and now you are referring to an 'inverter'. I would bet you have no strong background on this matter; listen, a system of such magnitude is not that simple, particularly considering the deadline you said, otherwise you would think twice before considering choosing that to work with. Take a look on some concepts such as Input Power Factor Correction, as well as Synchronous Rectification and you'll have a better sight of the amount of work that is expected to spent. It should eventually be used for charging batteries.

I understand the high cost, but there are many opportunities for funding research.

Thanks for your voices though. I have definitely comprehended that I have not enough information about this project and will need to spend more time on constraining it.

As a young grad student with no particular work experience I cannot deny your claim, but I will try to grow in this field as it is of particular interest.

It should eventually be used for charging batteries.

I understand the high cost, but there are many opportunities for funding research.

Thanks for your voices though. I have definitely comprehended that I have not enough information about this project and will need to spend more time on constraining it.

As a young grad student with no particular work experience I cannot deny your claim, but I will try to grow in this field as it is of particular interest.

Okay I'm guessing this is for some sort of grid storage application...

Even regardless of your experience level, 3 months is an insane timeline for this. 3 months is maybe enough to construct a proper lab for performing such work, which is necessary if you want to avoid burning down a building on your first arc flash. 500kW of power will not be available in the lab wall; you need to work close to a substation. The final output voltage is important: for example if you are producing Al by electrolysis, that will produce about 50Kg of Al per hour. But electrolysis will need low voltage and high current (10kA is common in many industries).

For charging batteries, you will need again low voltage at high current. You can of course put them in series but perhaps you can go only so far...

A single silicon rectifier will not be able to handle 10kA and you will need several in parallel. Mercury rectifiers are common at very high currents but they will also need massive cooling.

At 500kW (and say 480V) you will need to handle A; most likely the supply will be 11kV (three phase) or higher. And you will need to provide control electronics.

HVDC transmissions are getting popular but 11kV is not really high voltage in that context.

These are rather turnkey projects; each project is specific for a purpose.