How to start PMSM motor in sensorless control technique ?

08 September 2016 5,241 7 View

How to get speed waveform from theta which is derived from estimated back emf ?

Hello researchers, I am implementing sensor less control of PMSM from estimated back emf technique. I am getting an angle in the range of o to 2*pi which is perfect, however when I try to convert...

05 June 2016 7,911 7 View

What is the difference between universal bridge (simulink block) and normal bridge (made by mosfet switches ) in simulink matlab?

In closed loop system when i connect inbuilt universal bridge (MOSFET /DIODE) then my model is working perfectly and system is stable as soon as i connect 6 mosfet switches (bridge by mosfets) the...

11 December 2015 4,216 3 View

What is the impact of simulation time over sample time in simulink (MATLAB)?

10 November 2015 1,755 9 View

How do I find pi control parameters for three phase grid tied inverter?

09 October 2015 7,359 0 View

How do I scale and calculate pi controller parameter for DQ control of three phase grid tied inverter?

09 October 2015 4,156 4 View

Why is the response of boost converter changed when I convert compensator from continuous to discrete?

09 October 2015 1,054 2 View

How can I get desired phase margin in boost converter type 3 compensator?

I am modelling boost converter and using type 3 compensator. Inductor value of boost converter is very high which makes very low (right half plane frequency). Because of this problem I am not...

08 September 2015 6,085 3 View

In dc/dc boost converter feedback, after designing type-3 compensator's transfer function, how can we tune it in matalb simulink model?

I am trying to simulate interleaved dc dc boost converter in simulink and I am currently working on feedback part. I have designed the type 3 compensator for voltage feedback.After deriving...

08 September 2015 6,940 4 View

How to decide compensation reference waveform for current mode control of boost converter ?

I am modelling boost converter for current mode control in simulink .How to decide the switching time and the values of slopes Se, Sn and Sf to generate compensation ramp reference for boost...

08 September 2015 8,185 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

How to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

Could any one guide me, to write research proposal for grant? ?

We have one plant, the local people using this for controlling blood sugar, the toxicity and antidiabetic activity of the plant is not reported yet, please guide from whag should be the process ?...

02 March 2021 2,300 1 View

How to model the battery pack in PSIM or PSCAD?

Hello, I have simulated a single battery cell using Thevenin equivalent circuit. For a battery pack, I have a large number of cells connected in series and parallel connections. Is there any way...

28 February 2021 2,116 1 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

How to find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 3 View