Dynamic Stability Improvement of Grid Connected DFIG Using Enhanced Field Oriented Control Technique for High Voltage Ride Through

<div>Scheme of enhanced flux oriented control, where DCOC =<i> dc</i> offset component of flux and <svg height="11.7574pt" id="M70" style="vertical-align:-3.16066pt" version="1.1" viewbox="-0.0498162 -8.59674 19.3357 11.7574" width="19.3357pt" 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="M636 22C611 29 589 38 560 74C536 104 518 134 495 173L430 300C518 328 592 392 592 492C592 555 563 594 528 618C491 643 435 650 377 650H140L131 618C222 610 223 601 208 518L137 136C121 43 116 40 27 32L18 0H295L300 32C212 40 206 42 223 138L248 279H296C334 279 350 272 369 230C393 174 413 140 441 94C482 24 523 1 626 -8L636 22ZM497 480C497 422 468 374 417 343C387 324 353 315 304 315H255L298 556C303 583 309 598 319 603C331 610 348 613 367 613C448 613 497 573 497 480Z" id="g50-83"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="654" vert-adv-y="654"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,8.203,3.001)"><path d="M435 580C435 624 455 643 538 643V662H232V643C315 643 333 628 333 580V560C190 560 38 496 38 330C38 193 135 103 316 103H333V75C333 38 299 19 232 19V0H538V19C454 23 435 33 435 76V103H460C517 103 581 121 636 156C692 192 731 255 731 330C731 496 574 560 435 560V580ZM433 523C493 523 539 502 572 461S622 372 622 318S603 221 565 188C527 156 483 140 433 140V523ZM335 140C277 140 231 157 197 192C164 227 147 269 147 318C147 370 165 417 201 459C237 502 282 523 335 523V140Z" id="g4-20"></path><glyph.data ascent="915" descent="-218" horiz-adv-x="769" vert-adv-y="769"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,15.201,3.001)"><path d="M357 391C357 416 325 451 270 451C241 451 179 431 146 400C109 365 97 334 97 307C97 248 143 213 196 180C250 146 261 123 261 101C261 75 237 40 190 40C153 40 110 72 86 109C81 116 68 119 55 112C37 102 24 87 24 66C24 30 85 -12 137 -12C229 -12 331 62 331 140C331 189 304 218 236 260C197 284 164 309 164 346C164 381 194 400 220 400C259 400 282 380 304 350C310 342 321 339 330 344C347 353 357 372 357 391Z" id="g50-116"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="381" vert-adv-y="381"></glyph.data></g></svg> = radius of flux trajectory.</div>

Journal of Renewable Energy

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Figure 4

Figure 4: Dynamic Stability Improvement of Grid Connected DFIG Using Enhanced Field Oriented Control Technique for High Voltage Ride Through 