TableĀ 3 Power quality estimation during non-linear load applications.
Component | Metric | Droop (without SAPF) | SRF based FCS-MPC (with SAPF)27 | FS-MPC (with SAPF) | Improvement over Droop% | Improvement over SRF basd FCS-MPC% |
|---|---|---|---|---|---|---|
Non-linear Load Current | THD% Load | 38.89% | 38.89% | 38.89% | ā | ā |
Grid Current | THD% Grid | 38.89% | 6.5% | 2.1% | 94.60% | 67.69% |
Mean THD | Ī¼THD | \(\begin{gathered} \mu = \frac{38.89 + 38.89}{2} \hfill \\ = 38.89\% \hfill \\ \end{gathered}\) | \(\mu = \frac{38.89 + 6.5}{2} = 22.70\%\) | \(\mu = \frac{38.89 + 2.1}{2} = 20.50\%\) | ā | ā |
Standard Deviation | SDTHD | \(SD_{THD} = 0\) | \(\begin{gathered} SD_{THD} = \hfill \\ \sqrt {\frac{{\left( {38.89 - 22.70} \right)^{2} + \left( {6.5 - 22.70} \right)^{2} }}{2}} \hfill \\ = 16.91\% \hfill \\ \end{gathered}\) | \(\begin{gathered} SD_{THD} = \hfill \\ \sqrt {\frac{{\left( {38.89 - 20.50} \right)^{2} + \left( {2.1 - 20.50} \right)^{2} }}{2}} \hfill \\ = 25.88\% \hfill \\ \end{gathered}\) | ā | ā |
