Dr Narayanaswamy P R Iyer

Last seen: 8 days ago | Active since 2017

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M.E.(Power Electronics and Drives), UTS, NSW, Australia. Ph.D.(Power Electronics and Drives), Curtin University of Technology, Perth, WA, Australia. Received B.Sc.(Engg)(Electrical) and M.Sc.(Engg)(Power systems) degrees from Kerala University and Madras University respectively. Published the following text books: 1) "Power Electronic Converters: Interactive Modelling Using Simulink", CRC Press, 2018. 2) AC to AC Converters: Modelling, Simulation and Real-Time Implementation Using SIMULINK", CRC Press, 2019. Present MATLAB Version: R2022a. MATLAB License Number: 40513742 Operating System: Microsoft Windows 10 Home Version 10.0 (Build 14393) Java Version: Java 1.8.0_121-b13 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode ----------------------------------------------------------------------------------------------------- P.R. NARAYANASWAMY. Dr NARAYANASWAMY P R IYER EMAIL: nswamy.iyer@gmail.com

Programming Languages:
C++, C, Java, MATLAB, SQL, HTML, Fortran
Spoken Languages:
English, Hindi

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Answered
Run a simulink model for a certain amount of time and pause at T=0.5 more than 9h
You have to click 'view diagnosticks' at the bottom screen and follow the instructions. P.R. NARAYANASWAMY DR. N P R IYER...

17 days ago | 0

Answered
Are there any MATLAB Simulink models for Indirect Matrix Converters, especially Sparse Matrix Converter?
You may refer to my text book given below: NARAYANASWAMY P R IYER: "AC TO AC CONVERTERS: MODELING, SIMULATION AND REAL-TIME...

3 months ago | 0

Answered
How to find THD?
Check the result by setting sample time to zero and also by setting it to 50e-6 Second.

3 months ago | 0

Answered
Hi. In Simulink modeling, what can we do to ensure that the switching waveforms of the duty cycle and 1-duty cycle are not in phase?
Connect q1 to NOT gate and use Data Type Conversion block if error message occurs.Output of NOT gate is q3. Alternatively connec...

4 months ago | 0

Answered
Better solver for simscape power electronics simulation
In case of uncertainty as to which solver to be used, select AUTO solver selection mode from the drop down menu.

5 months ago | 0

Answered
What solver settings is best for a closed loop Dual active bridge simulation??
Usually ode23tb will be sufficient. If you are unsure select auto (automatic solver selection) mode.

10 months ago | 0

Answered
What is an efficient way to do PID tuning in a model with long computing time?
You may use Ziegler-Nicholas step response or else frequency response method for tuning PID controllers.

10 months ago | 1

| accepted

Answered
Controling multiple switches in a multiple input DC-DC converter
Hi Mohammad Alsalman: You have to use combined combinational and sequential logic. I give below how to generate gate pulse fo...

1 year ago | 0

Answered
Explaining the function of certain blocks
Hi: Assume that pulse generator output is vg and armature voltage control signal output is vcon. The top mux output, vcon, bot...

1 year ago | 0

Answered
I want to do Primary frequency response of DFIG Wind Turbine in script form (MATLAB).
Hi: Please refer to the following text book: NARAYANASWAMY P R IYER: "Power Electronic Converters Interactive Modelling Usin...

1 year ago | 0

Answered
How to find people to work on a collaborative project
I can work if the project falls within the broad area of Power Electronics and Drives. DR. NARAYANASWAMY P R IYER EMAIL: ns...

1 year ago | 0

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Answered
I want to do Primary frequency response of DFIG Wind Turbine in script form (MATLAB).
Hi: Try using EMBEDDED MATLAB Function in SIMULINK.

1 year ago | 0

Answered
How to find THD?
If your model is in SIMULINK, use THD module from Simscape / Electrical / Specialized Power Systems / Sensors and Measurements ...

1 year ago | 0

Answered
How To Input Duty Ratio into Pulse Generator
Enter period as 20e-6 Seconds and pulse width as 50.

1 year ago | 1

Answered
Torque control of PMSM motor- Need help
Hi: Torque set point is the rated machine torque. Torque set point is required to calculate id and iq reference values and stat...

1 year ago | 0

Answered
Help understanding transformers in simulink
The results appears alright. The spikes in waveform could be due to inductance of transformer windings compared to their resista...

1 year ago | 0

Answered
Defining pmsm parameters for delta configuration
The resistance and inductance values must be multiplied by 2/3 to get the per phase values for delta configuration. Thanks. DR....

2 years ago | 0

Answered
link a full bridge DC/AC to an induction machine
Hi: The PWM output is a gate pulse and is given to the G input of inverter through a four pulse gate multiplexer. The + and - te...

2 years ago | 0

Answered
Why does differentiating PID feedback break the system?
Clock module.

2 years ago | 0

Answered
Why does differentiating PID feedback break the system?
Hi: Instead of integrator at the output of convert to RPS module, use a multiplier block along with time block or time module an...

2 years ago | 0

Answered
How to develop Behavioral model of gate driver integrated circuit using specialized power system library blocks?
Shiny: Please refer to the following text book: NARAYANASWAMY P R Iyer: "AC to AC Converters Modelling, Simulation and Real-T...

2 years ago | 0

Answered
How can I remove the few peaks before the overshoot, so I only have the overshoot peak and then it directly transition into steady state?
For 8 V output, your duty-ratio should be 2/3 (0.67) for given input voltage.

2 years ago | 0

Answered
How can I remove the few peaks before the overshoot, so I only have the overshoot peak and then it directly transition into steady state?
TF is one method. You know the desired output voltage and duty-ratio D. Use this in the model to get open loop voltage response....

2 years ago | 0

Answered
How can I remove the few peaks before the overshoot, so I only have the overshoot peak and then it directly transition into steady state?
You have NOT mentioned anything about triangle carrier frequency. First obtain output voltage response without PI controller. Th...

2 years ago | 0

Answered
my firing angle on this triac does not work correctly ?
For switching thyristors, you may refer to the following text book: NARAYANASWAMY P R IYER: "Power Electronic Converters Inte...

2 years ago | 0

Answered
Problem At Sistem On Chip (SOC,PIL) Example Application
Most probably it could be due to insufficient RAM memory. Please check your PC RAM with the version of MATLAB specific requirem...

2 years ago | 0

Answered
Problem At Sistem On Chip (SOC,PIL) Example Application
Check your PC RAM memory with that specified by MATHWORKS for the MATLAB version used.

2 years ago | 0

Answered
Can you open an older simulink models and reference models in a newer version and build from the newer simulink?
I think the model developed using 2013b in Simulink can be opened with 2020b.

2 years ago | 0

Answered
Analog PID controller to Discrete PID controller
Analog PID Controller. Find TF of analog PID Controller and use command c2d in MATLAB.

2 years ago | 0