L vs. LCL Filter for Photovoltaic Grid-Connected Inverter: A Reliability Study

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr class="thead"><td class="align_left">Device</td><td class="align_center"><span style="width: 13.028ptpx;"><svg height="12.5612pt" id="M138" style="vertical-align:-3.27287pt" version="1.1" viewbox="-0.0498162 -9.28833 13.028 12.5612" width="13.028pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M529 97L508 118C475 75 449 58 438 58C428 58 421 66 415 104C393 234 374 403 364 496C345 670 307 712 254 712C220 712 174 691 153 669L161 645C176 653 194 658 206 658C237 658 261 640 278 562C287 522 290 483 293 434C223 269 110 105 23 9L32 -12C59 -6 85 0 108 7C152 64 251 252 300 366C307 297 315 221 337 82C346 24 363 -12 393 -12C425 -12 475 13 529 97Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,7.761,3.132)"><path d="M152 404V712C115 698 54 683 7 677V654C71 648 73 642 73 579V24C128 -2 179 -12 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50C318 4 339 -12 366 -12C410 -12 461 21 505 69L492 96C467 79 434 60 418 60C406 60 400 78 411 147C422 217 439 300 457 366C487 366 524 367 536 370C547 385 558 408 574 449Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,7.358,3.132)"><path d="M720 -138C627 -96 538 -41 476 2C594 39 703 153 703 331C703 532 552 665 384 665C170 665 44 499 44 315C44 215 87 129 147 73C211 11 298 -11 355 -14C476 -99 554 -136 584 -144S664 -160 712 -159L720 -138ZM348 25C231 49 146 172 146 342C146 533 249 629 360 629C497 629 601 510 601 302C601 142 523 51 443 28C434 34 425 41 416 47L348 25Z"></path></g></svg></span></td><td class="align_center"><span style="width: 13.1715ptpx;"><svg height="9.14241pt" id="M142" style="vertical-align:-3.1815pt" version="1.1" viewbox="-0.0498162 -5.96091 13.1715 9.14241" width="13.1715pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M574 449L545 460C526 432 516 430 487 430C404 430 311 435 226 435C104 435 56 379 25 341L43 318C81 354 121 372 181 372C161 246 87 53 23 3L30 -12C48 -12 88 -4 113 11C157 75 207 248 232 371L386 367L326 109C321 86 318 66 318 50C318 4 339 -12 366 -12C410 -12 461 21 505 69L492 96C467 79 434 60 418 60C406 60 400 78 411 147C422 217 439 300 457 366C487 366 524 367 536 370C547 385 558 408 574 449Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,7.358,3.132)"><path d="M517 162C503 123 484 88 467 68C445 42 417 34 341 34C291 34 256 34 237 47C219 59 213 81 213 128V317H308C395 317 402 311 415 240H444V431H415C403 364 398 356 307 356H213V584C213 613 215 616 246 616H322C394 616 421 609 435 587C448 566 458 544 467 502L496 506C493 557 488 625 488 650H42V622C120 616 128 612 128 523V125C128 43 120 35 29 28V0H511C520 31 540 125 546 158L517 162Z"></path></g></svg></span></td><td class="align_center"><span style="width: 14.0575ptpx;"><svg height="9.27027pt" id="M143" style="vertical-align:-3.309361pt" version="1.1" viewbox="-0.0498162 -5.96091 14.0575 9.27027" 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style="vertical-align:-3.27284pt" version="1.1" viewbox="-0.0498162 -5.96091 14.4046 9.23375" width="14.4046pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M574 449L545 460C526 432 516 430 487 430C404 430 311 435 226 435C104 435 56 379 25 341L43 318C81 354 121 372 181 372C161 246 87 53 23 3L30 -12C48 -12 88 -4 113 11C157 75 207 248 232 371L386 367L326 109C321 86 318 66 318 50C318 4 339 -12 366 -12C410 -12 461 21 505 69L492 96C467 79 434 60 418 60C406 60 400 78 411 147C422 217 439 300 457 366C487 366 524 367 536 370C547 385 558 408 574 449Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,7.358,3.132)"><path d="M687 650H462V622C543 612 549 605 530 547C498 447 422 252 372 126H370C302 298 229 492 204 563C188 607 191 615 262 622V650H17V622C77 616 93 608 122 534C180 389 262 172 329 -11H360C436 196 541 450 568 516C606 605 619 614 687 622V650Z"></path></g></svg></span></td></tr><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr><td class="align_left">MOSFET</td><td class="align_center">0.012</td><td class="align_center">3.67</td><td class="align_center">5.5</td><td class="align_center">8</td><td class="align_center">6</td><td class="align_left"> </td><td class="align_left"> </td></tr><tr><td class="align_left">Inductor</td><td class="align_center">0.00003</td><td class="align_center">1.82</td><td class="align_left"> </td><td class="align_center">3</td><td class="align_center">6</td><td class="align_left"> </td><td class="align_left"> </td></tr><tr><td class="align_left">Capacitor</td><td class="align_center">0.00037</td><td class="align_center">1.209</td><td class="align_left"> </td><td class="align_center">10</td><td class="align_center">10</td><td class="align_center">0.35449</td><td class="align_center">26.17</td></tr><tr class="table-tr"><td colspan="8"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>LCL filter adjustment factors.</div>

International Journal of Photoenergy

tab6

Table 6

Table 6: L vs. LCL Filter for Photovoltaic Grid-Connected Inverter: A Reliability Study 