An Improved P&O Based MPPT for PV Systems with Reduced Steady-State Oscillation

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Name</td><td class="align_center">Number/value</td><td class="align_center">Name</td><td class="align_center">Number/value</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left"><span style="width: 16.4833ptpx;"><svg height="11.9224pt" id="M40" style="vertical-align:-3.286501pt" version="1.1" viewbox="-0.0498162 -8.6359 16.4833 11.9224" width="16.4833pt" 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="M645 631C614 643 545 666 457 666C215 666 23 519 23 283C23 90 158 -16 337 -16C412 -16 489 2 522 10C543 39 590 127 606 167L580 181C519 89 459 18 348 18C201 18 122 136 122 287C122 464 244 632 435 632C544 632 602 595 608 472L639 475C643 526 645 581 645 631Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,8.619,3.132)"><path d="M221 640C187 640 167 607 168 581C168 555 185 538 208 538C239 538 262 565 261 595C261 619 247 640 221 640ZM223 109C199 88 165 62 153 62C147 62 145 70 151 94L219 369C231 416 232 448 209 448C183 448 113 407 58 353L70 331C101 356 131 373 139 373C145 373 145 363 140 341L77 86C57 4 71 -12 91 -12C125 -12 202 47 236 87L223 109Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,10.985,3.132)"><path d="M480 109C451 80 424 63 415 63C408 63 407 72 413 99C429 168 446 238 462 306C492 434 464 449 439 449C420 449 399 442 373 426C331 402 257 344 189 251H187L208 338C226 415 222 449 200 449C172 449 114 412 59 354L73 330C98 354 128 375 137 375C143 375 146 367 139 335C114 224 85 105 57 -4L63 -11C82 -4 109 3 135 8C147 69 162 128 174 177C224 262 340 385 384 385C399 385 405 371 391 314C374 240 357 166 339 92C320 15 330 -12 354 -12C380 -12 436 20 495 85L480 109Z"></path></g></svg></span></td><td class="align_center">50 V/470 <i>μ</i>F</td><td class="align_center">Load</td><td class="align_center">110 <i>Ω</i></td></tr><tr><td class="align_left"><span style="width: 7.31558ptpx;"><svg height="8.68572pt" id="M41" style="vertical-align:-0.0498209pt" version="1.1" viewbox="-0.0498162 -8.6359 7.31558 8.68572" width="7.31558pt" 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="M541 160L512 170C485 116 462 88 439 67C411 41 376 35 318 35C272 35 238 37 224 48C207 61 205 85 212 121L290 533C305 611 308 615 391 622L397 650H139L133 622C217 615 221 612 206 533L126 118C111 41 103 34 23 26L17 0H474C489 31 528 124 541 160Z"></path></g></svg></span></td><td class="align_center">400 <i>μ</i>H</td><td class="align_center">Switch frequency</td><td class="align_center">50KHz</td></tr><tr><td class="align_left"><span style="width: 13.9075ptpx;"><svg height="11.9087pt" id="M42" style="vertical-align:-3.2728pt" version="1.1" viewbox="-0.0498162 -8.6359 13.9075 11.9087" width="13.9075pt" 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="M645 631C614 643 545 666 457 666C215 666 23 519 23 283C23 90 158 -16 337 -16C412 -16 489 2 522 10C543 39 590 127 606 167L580 181C519 89 459 18 348 18C201 18 122 136 122 287C122 464 244 632 435 632C544 632 602 595 608 472L639 475C643 526 645 581 645 631Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,8.619,3.132)"><path d="M257 449C165 449 37 374 37 209C37 98 119 -12 256 -12C355 -12 473 65 473 226C473 349 381 449 257 449ZM244 416C333 416 380 320 380 204C380 67 329 21 267 21C184 21 130 115 130 241C130 354 184 416 244 416Z"></path></g></svg></span></td><td class="align_center">50 V/470 <i>μ</i>F</td><td class="align_center">Processor</td><td class="align_center">LPC1768</td></tr><tr><td class="align_left">Diode</td><td class="align_center">MBR20100</td><td class="align_center">Sample time</td><td class="align_center">30mS</td></tr><tr><td class="align_left">Gate drive</td><td class="align_center">TC4424</td><td class="align_center">Current sensor</td><td class="align_center">ACS712</td></tr><tr><td class="align_left">Switch</td><td class="align_center">IRFZ44N</td><td class="align_center">Voltage sensor</td><td class="align_center">MCU ADC</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The boost converter components and processor specifications.</div>

International Journal of Energy Research

tab2

Table 2

Table 2: An Improved P&O Based MPPT for PV Systems with Reduced Steady-State Oscillation 