phase locked loop for induction heating

greetings,

I am trying to desing phase locked loop for induction heating system. I want to do it in simulink first and then using c2000 embeded coder apply in DSP launchpad. but I don't know to choose the gains. I found this published but I don't know the gain he use and how to choose them. Also I know that PLL need low pas filter i don't find it here. my frequency bandwidth from 20khz to 30khz.

thanks in advance

Answer 1

[UDAYA PEDDIRAJU]

Dear Deiaaldeen,

I understand that you are working on designing a Phase Locked Loop (PLL) for an induction heating system using Simulink. You are seeking guidance on how to choose the gains for your PLL. In the PLL block that you attached, there is a Gain parameter "K" which allows you to choose different gain values by accessing the properties of "K". It is important to note that the Discrete Time Integrator in the PLL block acts as a low pass filter (LPF), which is necessary for the PLL operation. To further assist you, I recommend referring to the following resources before implementing your design.

Simulink Design of PLL: You can find valuable information on PLL design in Simulink through the following resources:

1. Simulink documentation on Phase-Locked Loops: https://www.mathworks.com/help/comm/ug/phase-locked-loops.html
2. Phase-Locked Loop Synthesis and Simulation File Exchange submission: https://www.mathworks.com/matlabcentral/fileexchange/23588-phase-locked-loop-synthesis-and-simulation
3. Video tutorial on PLL design with MATLAB and Simulink: https://www.mathworks.com/videos/pll-design-with-matlab-and-simulink-81731.html
4. Simulink documentation on the Phase-Locked Loop block: https://www.mathworks.com/help/msblks/phase-locked-loop.html

Implementation on DSP Launchpad: After designing and simulating your PLL in Simulink, you can utilize the c2000 Embedded Coder to generate code that can be executed on your DSP Launchpad. This tool enables you to convert your Simulink model into code suitable for your specific hardware platform.

I hope this information provides clarity and helps you.