Osama Arafa

7 Questions 29 Answers 0 Followers

Questions related from Osama Arafa

For EMC Experts, we are building an inverter in which we encounter an intense noise issue, any one can help?

My team has built a three-level three-phase PV inverter (grid-tied) of 20 kW rating and the point of common coupling is 50 Hz, 380 Vrms (line-to-line). For safe operation, we implemented too many...

09 September 2022 7,911 10 View

Is it possible to assess a system stability without having an S-domain model?

I am working on an algorithm that receives 4 pulsating inputs to produce two continuous outputs. A numerical model that enables numerical simulation is all that I have in hand. However, the...

26 March 2020 8,643 5 View

How to extract the fundamental component from a harmonic-distorted single phase voltage that has a variable frequency ?

A single phase micro grid composed of some synchronized diesel generators and some loads undergoes wide changes in operational frequency due to the dynamic interaction between its load and its...

13 October 2018 6,137 18 View

What are the possibilities for making phase voltages available for real-time state observers/estimators ?

Some state estimators/observers in electrical drives applications need (as inputs) the voltages impressed on the machine terminals. Knowing that these voltages are always modulated using high...

25 July 2015 240 7 View

Any mechanical researcher interested in being a co-author in a research paper ?

I need from the co-author to provide a SIMULINK dynamic model of a "1.5 HP centrifugal pump combined with a pressurized air vessel and a valve on the discharge" ? The model should be ready for...

12 March 2015 3,555 2 View

Power Electronics/Energy Conversion laboratory Equipment and Apparatus that each lab must have

One of the areas that academic communities can exchange to support each other in upgrading and boosting research activities is the details of the core laboratory equipment that a certain...

01 January 1970 7,330 4 View

How can we maintain life of Arabic language in the face of challenging technical terms that are difficult for translation?

For Arabic Native speakers, occasionally we face some technical terms which are challenging for translators. The theory says that concepts and terms that are understandable can be expressed in any...

01 January 1970 4,552 10 View