Omid Alavi

13 Questions 20 Answers 0 Followers

Questions related from Omid Alavi

Can you help me with modeling discrete variables in PSO algorithm?

Hi to all, My question mainly lies in the updating process of the elements that determine the location of the DG units in planning problem. You can find more detailed explanations about my...

06 August 2016 9,293 3 View

Is there any logical and conclusive reason for increasing power losses in Buck DC-DC converter when duty cycle is very low?

Hi to all,I simulated a buck dc-dc converter. The power output is fixed at 2 kW.When the duty cycle is very low (under 10%), a sharp increase will be seen in the power losses as well as...

04 July 2016 9,602 4 View

Are DC-DC Buck, Boost, and Buck-Boost converters as voltage regulator?

Hi to all,I use the MIL-HDBK-217 standard for my study. I attached the table of diode base failure rates for different applications.I read that these three DC-DC converters are as voltage...

02 June 2016 9,206 5 View

How can I find Cth_j (junction thermal capacitance) from thermal impedance vs. time curve provided in datasheet?

Hello, I want to find the junction thermal capacitance (J/K) based on the thermal impedance vs. time curve (we have this curve from the semiconductor specifications or IGBT module datasheet).For...

11 May 2016 5,754 4 View

Is there any closed loop control method for Three phase Z-Source Inverter?

I want to simulate a three phase z-source inverter using matlab simulink.I'm looking for a closed loop controller for this circuit (With a ref voltage).The circuit should work in buck and boost...

29 April 2015 5,876 6 View

Can anyone help me to solve my problem in Vienna rectifier simulation using Matlab?

I want to simulate a Vienna rectifier using Matlab,I checked some controllers but I have got some problems with THD, input current and Power Factor.I uploaded my simulation file below,In this...

08 April 2015 6,764 7 View

What is the result of using Advanced Metering Infrastructure (AMI) in your country?

For my project, I need to compare my country (Iran) with other ones in operation and results of using Advanced Metering Infrastructure (AMI),Please give me some information or papers in this field...

20 February 2015 1,716 5 View

Is there any flowchart for design of Permanent Magnet Synchronous Motor (PMSM)?

I need a flowchart or method for design of Permanent Magnet Synchronous Motor (PMSM),,Please give me some papers in this field.

12 January 2015 2,363 3 View

What is the value of n,L,C and R for my full-bridge boost converter in MATLAB simulation?

I want to simulate a full-bridge boost converter regarding the below figure,What are the suitable values for n , L , C and R ?

03 January 2015 4,458 7 View

How can I simulate optical current transformer (OCT) with matlab simulink?

How can i simulate OCT with matlab simulink?

03 January 2015 4,368 2 View

Do you know a new technology to replace SVC with cheaper and better devices?

SVC is based on thyristors without gate turn-off capability. SVC used in electrical power transmission.

03 January 2015 3,491 4 View

Is any basic paper for SVC in electrical engineering ?

SVC is based on thyristors without gate turn-off capability.(Electric power transmission)

03 January 2015 5,597 4 View

How can I solve this problem in my inverter?

I simulated a 7-level grid connected inverter using Matlab.When I changed my load from R to RL, I saw a spike in 0-1 level, I think this problem is related to reactive power,How can I solve this...

02 January 2015 5,314 5 View