Table 4 Optimal parameters of three PV cell models (SDM, DDM, and TDM) based on RTC France reference cell, and PVM parameters for the Photowatt-PWP201.
| Â | SFOA | ECO | HO | OOA | ZOA | SFOA-Secant | ECO-Secant | HO-Secant | OOA-Secant | ZOA-Secant |
|---|---|---|---|---|---|---|---|---|---|---|
SDM | Â | Â | Â | Â | Â | |||||
 \(I_{ph}\)(A) | 0.76078 | 0.76073 | 0.76064 | 0.76207 | 0.76052 | 0.76079 | 0.76082 | 0.76049 | 0.76488 | 0.76061 |
 \(I_{sd}\) (\(\mu\)A) | 0.32302 | 0.35435 | 0.27179 | 0.79519 | 0.30062 | 0.31039 | 0.29814 | 0.39037 | 0.22756 | 0.3168 |
 \(R_{sh}\) (\(\Omega\)) | 53.7184 | 56.3764 | 51.9534 | 68.3279 | 55.3669 | 52.9648 | 51.8991 | 62.3637 | 57.206 | 56.4129 |
 \(R_{s}\) (\(\Omega\)) | 0.036377 | 0.036006 | 0.037101 | 0.032865 | 0.036714 | 0.036553 | 0.036724 | 0.035612 | 0.041722 | 0.036585 |
 n | 1.4812 | 1.4906 | 1.4639 | 1.5779 | 1.4739 | 1.4772 | 1.4731 | 1.5005 | 1.4459 | 1.4792 |
 RMSE | \(9.8602\times 10^{-4}\) | \(1.0017\times 10^{-3}\) | \(1.0504\times 10^{-3}\) | \(2.3384\times 10^{-3}\) | \(1.0137\times 10^{-3}\) | \(7.6579\times 10^{-4}\) | \(7.6841\times 10^{-4}\) | \(8.6480\times 10^{-4}\) | \(4.9989\times 10^{-3}\) | \(7.8396\times 10^{-4}\) |
DDM | ||||||||||
 \(I_{ph}\)(A) | 0.760790 | 0.759770 | 0.761350 | 0.736970 | 0.761150 | 0.760830 | 0.760750 | 0.761190 | 0.791450 | 0.760860 |
 \(I_{sd1}\) (\(\mu\)A) | 0.373630 | 0.071649 | 0.585210 | 0.854700 | 0.278570 | 0.187210 | 0.318150 | 0.126580 | 0.642170 | 0.208560 |
 \(I_{sd2}\) (\(\mu\)A) | 0.271510 | 0.440680 | 0.169750 | 0.196520 | 0.196900 | 0.996220 | 0.267270 | 0.455080 | 0.965250 | 0.440740 |
 \(R_{sh}\) (\(\Omega\)) | 54.479500 | 92.118600 | 45.177900 | 58.899000 | 49.559600 | 54.681700 | 54.089900 | 47.259800 | 12.189500 | 56.308800 |
 \(R_{s}\) (\(\Omega\)) | 0.036555 | 0.035200 | 0.037444 | 0.036382 | 0.036542 | 0.037082 | 0.036714 | 0.037566 | 0.039587 | 0.036661 |
 \(n_1\) | 1.997700 | 1.859900 | 1.904200 | 1.707900 | 1.702700 | 1.434700 | 1.998900 | 1.407200 | 1.579900 | 1.448500 |
 \(n_2\) | 1.466400 | 1.514000 | 1.425800 | 1.486700 | 1.446000 | 2.000000 | 1.464500 | 1.746100 | 1.832100 | 1.799400 |
 RMSE | \(9.8346\times 10^{-4}\) | \(1.3697\times 10^{-3}\) | \(1.1097\times 10^{-3}\) | \(2.4222\times 10^{-2}\) | \(1.0235\times 10^{-3}\) | \(7.4192\times 10^{-4}\) | \(7.5727\times 10^{-4}\) | \(8.1849\times 10^{-4}\) | \(2.0863\times 10^{-2}\) | \(8.0037\times 10^{-4}\) |
TDM | ||||||||||
 \(I_{ph}\)(A) | 0.76077 | 0.76065 | 0.76031 | 0.76746 | 0.7607 | 0.76085 | 0.76058 | 0.76097 | 0.78249 | 0.76072 |
 \(I_{sd1}\) (\(\mu\) A) | 0.0043821 | 0.31689 | 0.73845 | 0.79243 | 0.35674 | 0.090904 | 0.93996 | 0.42128 | 0.43867 | 0.32592 |
 \(I_{sd2}\) (\(\mu\)A) | 0.30437 | 0.1 | 0.10568 | 0.2784 | 0.18025 | 0.95898 | 0.24448 | 0.034704 | 0.43479 | 0.32714 |
 \(I_{sd3}\) (\(\mu\)A) | 1 | 0.99067 | 0.27352 | 0.29601 | 0.44456 | 0.92695 | 0.98737 | \(3.38\times 10^{-5}\) | 0.32901 | 0.79995 |
 \(R_{sh}\) (\(\Omega\)) | 54.4258 | 55.995 | 66.023 | 41.335 | 52.8921 | 55.8943 | 63.6227 | 55.9845 | 35.6222 | 64.1659 |
 \(R_{s}\) (\(\Omega\)) | 0.036472 | 0.036265 | 0.0371 | 0.032955 | 0.037494 | 0.038114 | 0.0361 | 0.03503 | 0.039877 | 0.035866 |
 \(n_1\) | 2 | 1.4802 | 1.7654 | 1.7252 | 1.8137 | 1.3762 | 1.9902 | 1.5089 | 1.5551 | 1.4852 |
 \(n_2\) | 1.4757 | 1.9403 | 1.3978 | 1.5034 | 1.4318 | 1.9674 | 1.4603 | 1.9403 | 1.6355 | 1.9967 |
 \(n_3\) | 2.6576 | 4.6524 | 2.5093 | 3.1298 | 3.4027 | 2.008 | 4.6782 | 2.0347 | 2.7947 | 2.4205 |
 RMSE | \(9.8228\times 10^{-4}\) | \(9.8997\times 10^{-4}\) | \(1.0461\times 10^{-3}\) | \(4.3137\times 10^{-3}\) | \(1.0584\times 10^{-3}\) | \(7.3218\times 10^{-4}\) | \(8.3668\times 10^{-4}\) | \(9.5551\times 10^{-4}\) | \(1.5493\times 10^{-2}\) | \(9.2952\times 10^{-4}\) |
PVM | ||||||||||
 \(I_{ph}\)(A) | 1.0294 | 1.0241 | 1.0183 | 0.55027 | 1.0297 | 1.0314 | 1.0313 | 1.0284 | 0.90697 | 1.0215 |
 \(I_{sd}\) (\(\mu\)A) | 4.0479 | 3.4115 | 2.4511 | 0.20772 | 6.1573 | 2.6276 | 2.7394 | 2.9996 | 0.00051304 | 1.3294 |
 \(R_{sh}\) (\(\Omega\)) | 35.0831 | 975.7735 | 253.6792 | 550.5105 | 42.356 | 22.8261 | 23.5141 | 34.8845 | 342.7705 | 149.6894 |
 \(R_{s}\) (\(\Omega\)) | 0.032981 | 0.034037 | 0.0349 | 0.025977 | 0.031502 | 0.034341 | 0.03421 | 0.034131 | 0.0005111 | 0.037522 |
 n | 1.3673 | 1.3479 | 1.3139 | 1.1652 | 1.4149 | 49.4484 | 49.6081 | 49.9476 | 30.3078 | 46.9245 |
 RMSE | \(2.4679\times 10^{-3}\) | \(3.9275\times 10^{-3}\) | \(4.9871\times 10^{-3}\) | \(3.4675\times 10^{-1}\) | \(2.9992\times 10^{-3}\) | \(2.0489\times 10^{-3}\) | \(2.0507\times 10^{-3}\) | \(2.1995\times 10^{-3}\) | \(1.9808\times 10^{-1}\) | \(4.6287\times 10^{-3}\) |