How to convert DC input voltages (17-90V) to 18V output using isolated topology?

06 July 2017 8,484 5 View

Can someone let me know/share the control logic for FB llc resonant converter?

05 June 2017 2,288 1 View

What is the best topology for 50 KW Solar MPPT charge controller?

It should be buck boost (isolation reqd) with mppt voltage of 300 - 1000 VDC to output 650VDC. if not single 50 KW preferred, how many trackers can be used? Edit : Output DC is converted to three...

03 April 2017 2,332 9 View

How to calculate LC filter values in Single phase diode rectifier circuit?

Vdc=24, Idc=10A, Ripple

02 March 2017 5,365 0 View

How to achieve <1% current regulation of set value in charger cum regenerative discharger used for formation of batteries?

Current system is able to achieve 2% of full scale value instead of set value. For eg., in 360V, 100A, for 100A (Full scale) 2% is 2A regulation could be achieved. But if I set 10A (set value) to...

01 February 2017 4,285 13 View

In three phase inverter during unbalance condition,control loop corrects output voltage but line current is lagging or leading. What am I missing?

31 December 2015 7,023 4 View

Three phase inverter using three-single phase full bridge or three phase 3 leg config?Which is better approach in terms of practical implementation?

31 December 2015 7,709 12 View

How to eliminate 5th and 7th harmonics completely in 12 pulse SCR rectifier?

Theoritically 5th and 7th harmonics doesnt exist in 12 pulse rectifier. But when i observed practically, it exists in the range of 4-5%. Can someone give idea on how to eliminate those to make it...

04 May 2015 9,342 8 View

What are the possible and highly effective harmonic reduction methods in dq control of three phase inverter?

The three phase inverter is connected to star connected high crest factor load. So, high voltage and current harmonics are produced at the inverter output. Control is based on d-q theory. My...

11 December 2013 7,699 7 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 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

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

How to size battery banks?

I am designing a small grid connected solar PV power-plant. As the battery's capacity is specified in Ah and demand in kWh. What is the best way to size the battery bank? I have battery price in...

28 February 2021 1,638 3 View