# Dr Narayanaswamy P R Iyer

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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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**Feeds**

High Rotor speed and oscillating troque

Hi: I can't predict anything unless I am able to see the model. P.R. NARAYANASWAMY. DR. N P R IYER EMAIL: nswamy.iyer@gm...

4 månader ago | 0

High Rotor speed and oscillating troque

Hi: It all depends upon the model configuration such as whether the model is open loop or closed loop and whether any speed or...

4 månader ago | 0

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...

4 månader ago | 0

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...

7 månader ago | 0

How to find THD?

Check the result by setting sample time to zero and also by setting it to 50e-6 Second.

7 månader ago | 0

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...

8 månader ago | 0

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.

9 månader ago | 0

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.

ungefär ett år ago | 0

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.

ungefär ett år ago | 1

| accepted

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...

mer än ett år ago | 0

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...

mer än ett år ago | 0

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...

mer än ett år ago | 0

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...

mer än ett år ago | 0

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...

mer än ett år ago | 0

| accepted

I want to do Primary frequency response of DFIG Wind Turbine in script form (MATLAB).

Hi: Try using EMBEDDED MATLAB Function in SIMULINK.

mer än ett år ago | 0

How to find THD?

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

mer än ett år ago | 0

How To Input Duty Ratio into Pulse Generator

Enter period as 20e-6 Seconds and pulse width as 50.

mer än ett år ago | 1

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...

nästan 2 år ago | 0

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...

ungefär 2 år ago | 0

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....

ungefär 2 år ago | 0

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...

ungefär 2 år ago | 0

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...

mer än 2 år ago | 0

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...

mer än 2 år ago | 0

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.

mer än 2 år ago | 0

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....

mer än 2 år ago | 0

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...

mer än 2 år ago | 0

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...

mer än 2 år ago | 0

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...

mer än 2 år ago | 0

Problem At Sistem On Chip (SOC,PIL) Example Application

Check your PC RAM memory with that specified by MATHWORKS for the MATLAB version used.

mer än 2 år ago | 0