Sagar Modi

11 Questions 15 Answers 0 Followers

Questions related from Sagar Modi

How to start PMSM motor in sensorless control technique ?

I am simulating sensorless control of PMSM. I am giving constant theta at the starting time but my motor is not starting, what could be possible reasons?

09 September 2016 5,295 7 View

How to design LCL filter for three phase grid connected system?

What are the advantages of LCL over LC filter and how to design LCL filter?

07 July 2016 1,498 1 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...

06 June 2016 7,960 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...

12 December 2015 4,270 3 View

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

I am simulating my circuit at simulation time which is 1e-7 and my sample time for a part of circuit is 20e-6 sec. Why my result of overall circuit is affected by simulation time where i am...

11 November 2015 1,794 9 View

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

I am making a simulink model for three phase grid tied inverter. I have a few questions. Can you help me out? -At the summing point (Id-Iq*wl*Vd) and (Iq+Id*wl*Vq) I am getting very high value...

10 October 2015 4,198 4 View

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

I am simulating a three phase grid tied inverter using simulink. How do I find kp and ki parameters for pi controller for PLL, Id, Iq and Vdc . Is there any specific approach to get their values?

10 October 2015 7,399 0 View

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

The response of boost converter changes when I am trying to discretize simulink matlab model.I changed my compensator transfer function from s domain to z domain using c2d command.However after...

10 October 2015 1,088 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...

09 September 2015 6,126 3 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...

09 September 2015 8,227 0 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...

09 September 2015 6,991 4 View