How does the total harmonic distortion (THD) produced by a solar inverter impact grid stability, and what mitigation techniques can be employed to reduce THD levels?

Total harmonic distortion (THD) refers to the measure of harmonic content present in a voltage or current waveform, expressed as a percentage of the fundamental frequency component. Solar inverters, while converting DC power from solar panels to AC power for grid injection, can introduce harmonics due to the switching nature of their power electronic components. High THD levels can negatively impact grid stability in several ways. Harmonics can cause overheating in transformers and o....