What problems when connecting DC-DC converter output in series?

Assuming I have 3 DC-DC boost converters, and I connect the three in different sources. The output is connected in series and in a load. How will the behavior be? Are there papers for this?

31 December 2018 2,611 0 View

How to control power optimizers connected to any photovoltaic inverter within the specifications?

I would like to know how the control of optimizers in series is done, therefore I understand it is necessary to keep the DC current equal for all and to do the MPPT. Does the DC link of the...

11 December 2018 4,242 1 View

Which protection circuits do you use for current and voltage sensors?

I will use sensors with up to 20A for current and 220V for voltage.

08 September 2018 4,647 0 View

What behavior to connect two cascaded MPPT?

If I connect two DC converters to a PV array, both of which have MPPT control, what would happen? Is there any work on this? PV -> [DC convert (1-MPPT)] Optimizer -> [DC convert (2-MPPT) - > AC]...

07 August 2018 3,385 0 View

What phrase from scientists most inspired you?

We always have a key phrase about the scientist we most admire in each area, what is yours?

04 May 2018 5,771 11 View

The number of citations is a quality metric for a paper? What metrics do you think are important?

I don't believe that citation is a reliable metric, since there are areas with more papers than others, so more quotes. Therefore, in my opinion should take into account a set of factors as impact...

04 May 2018 9,525 2 View

Discussion: In your opinion, what is the most important invention for humanity in your area? Why?

This question aims to discuss and raise opinions on scientific inventions in the most diverse areas of importance to humanity. Write about your area of study and what inventions were relevant to...

04 May 2018 540 1 View

What would be the price ratio between materials for semiconductor manufacturing? SiC, GaN, GaAs, for exemple?

Hi, The semiconductor industry continues to accelerate the production of devices with new materials, such as SiC, GaN, GaAs, which have better characteristics than silicon. But what would be the...

03 April 2018 8,541 0 View

Did we come at a time when the improvement in computational hardware has evolved more than the software can keep up?

I realize that the evolution of the hardware in computers has not been evolving as in the past, I believe due to the limitations of the software. How can this be bypassed? What research highlights...

03 April 2018 9,027 0 View

How is the use of photovoltaic energy encouraged in your country?

How is the incentive for photovoltaic energy in your country? What are the results achieved? This is a discussion that can greatly help understand the growth of PV systems.

03 April 2018 2,276 1 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View