Research Article
A Grey-Box Model of a DC/DC Boost Converter for PV Energy Systems
Table 2
Correlation coefficients of the proposed models corresponding to load resistance.
| Load | Correlation coefficient | White-box model | Black-box model | Grey-box model |
| 100 Ω | 0.969607374871639 | 0.989513638531563 | 0.989820560464109 | 200 Ω | 0.976144494547240 | 0.991640393050001 | 0.993413906368015 | 300 Ω | 0.976923513467295 | 0.990436320971092 | 0.993590316644113 | 400 Ω | 0.979988267054458 | 0.989421560287630 | 0.993837996469483 | 500 Ω | 0.980225900502161 | 0.988866958508408 | 0.993865075783872 | 600 Ω | 0.985603416035943 | 0.989670275878091 | 0.994144100656739 | 700 Ω | 0.982795930071293 | 0.986884751559852 | 0.993201940018121 | 800 Ω | 0.984517235328024 | 0.987159320329735 | 0.992496091425469 | 900 Ω | 0.982673910426754 | 0.988889783662086 | 0.993452111138890 | 1 kΩ | 0.979762754682253 | 0.986772163427075 | 0.991985164520238 | 2 kΩ | 0.976144494547240 | 0.991640393050001 | 0.993413906368015 | 3 kΩ | 0.976923513467295 | 0.990436320971092 | 0.993590316644113 | 4 kΩ | 0.979988267054458 | 0.989421560287630 | 0.993837996469483 | 5 kΩ | 0.980225900502161 | 0.988866958508408 | 0.993865075783872 | 6 kΩ | 0.985603416035943 | 0.989670275878091 | 0.994144100656739 | 7 kΩ | 0.982795930071293 | 0.986884751559852 | 0.993201940018121 | 8 kΩ | 0.984517235328024 | 0.987159320329735 | 0.992496091425469 | 9 kΩ | 0.982673910426754 | 0.988889783662086 | 0.993452111138890 | 10 kΩ | 0.935970454110177 | 0.961261382638612 | 0.963262087672671 | 20 kΩ | 0.931870554390938 | 0.963208688647779 | 0.965073476115451 | 30 kΩ | 0.933618975230007 | 0.959623222565440 | 0.961791180543948 | 40 kΩ | 0.933903318154406 | 0.959545572674599 | 0.961225377879551 | 50 kΩ | 0.913986342412283 | 0.949099664989821 | 0.950941023597757 | 60 kΩ | 0.930819295880845 | 0.957568658115150 | 0.958862100443451 | 70 kΩ | 0.930682875491503 | 0.955620053912268 | 0.957565076893362 | 80 kΩ | 0.924463965754733 | 0.955476590411907 | 0.956782645035189 | 90 kΩ | 0.932454024167612 | 0.959497120248109 | 0.960276549391506 | 100 kΩ | 0.934523015669254 | 0.958883606912570 | 0.959847019029370 | 200 kΩ | 0.926376070445581 | 0.959697268346821 | 0.960287822022982 | 300 kΩ | 0.934618234112205 | 0.958547227511676 | 0.959703720185535 | 400 kΩ | 0.924483253918741 | 0.956441961509381 | 0.957258335268235 | 500 kΩ | 0.918083893513768 | 0.954893996522147 | 0.956127236637524 | 600 kΩ | 0.922747183436913 | 0.954612204426463 | 0.955873694057610 | 700 kΩ | 0.932109903206404 | 0.958829830993813 | 0.959931624512020 | 800 kΩ | 0.912661691575812 | 0.947996746439804 | 0.949092672243520 | 900 kΩ | 0.920549605992836 | 0.949959031814387 | 0.951848302572760 | 1 MΩ | 0.928352443784171 | 0.958162827359424 | 0.958908262966600 |
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