PLECS code generator_TMDSCNCD28379D

oming0731
Wed, 22 May 2024 17:59:09 +0000
TI C2000

Hello,

I am currently working on implementing a an inverter using PLECS(Controller : TMDSCNCD28379D). In the system, current measurement is performed using sigma-delta modulator.

Grid Output Current Measurement:

Sensor: Shunt resistorModulator: AMC1306M05 reinforced modulator (±50mV input range)MCU: TMDSCNCD28379DShunt resistor value: 0.002Ω (providing ±50mV output signal at approximately ±25A output, generating 0.5W of heat at full load)The voltage across the shunt resistor is fed into the AMC1306M05 sigma-delta modulator, generating a sigma-delta streamThe modulator clock is generated from the eCAP peripheral on the C2000 MCU, and the AMC1306M05 data is read using the built-in SDFM demodulatorQuestions:

How can I implement this setup in PLECS?Are there specific guidelines or examples for modeling the AMC1306M05 modulator and the SDFM demodulator function of the TMDSCNCD28379D in PLECS?Could you explain how to generate and process the sigma-delta modulated signal in PLECS?

3 posts - 2 participants