Experimental Evaluation on the Influence of RCD Snubbers in a 3-Level Thyristor Based MLCR CSC

<div>Experimental currents <svg height="15.7151pt" id="M278" style="vertical-align:-7.079201pt" version="1.1" viewbox="-0.0498162 -8.6359 17.6257 15.7151" width="17.6257pt" 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="M405 650H141L135 622C222 616 230 610 215 535L133 116C118 41 113 33 29 28L23 0H289L295 28C209 33 205 40 219 116L298 535C312 609 317 616 399 622L405 650Z" id="g113-74"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="428" vert-adv-y="428"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,4.719,3.132)"><path d="M463 633C453 636 427 644 417 648C388 660 349 667 316 667C183 667 100 592 100 483C100 398 176 335 223 305L259 282C321 242 358 203 358 149C358 66 301 22 234 22C110 22 70 131 57 208L24 205L28 48C51 23 128 -17 215 -17C342 -17 446 60 446 174C446 262 394 310 317 361L284 383C229 420 183 455 183 515C183 569 222 628 298 628C384 628 418 563 428 481L461 487C459 527 458 593 463 633Z" id="g50-84"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="487" vert-adv-y="487"></glyph.data></g><g transform="matrix(.0065,0,0,-0.0065,9.023,5.233)"><path d="M575 299C575 406 528 454 412 454C385 454 342 447 313 440L330 514L318 525C293 510 258 487 242 466L227 419C194 403 158 384 123 361L126 327C155 342 183 355 220 364L107 -148C96 -198 76 -210 19 -215L14 -253L259 -241V-206L240 -205C184 -202 183 -188 192 -141L220 -1C242 -10 269 -12 284 -12C352 5 434 48 484 102C542 165 575 238 575 299ZM479 290C479 170 380 41 305 41C281 41 249 60 237 72L300 395C329 399 353 401 374 401C426 401 479 377 479 290Z" id="g176-113"></path><glyph.data ascent="3439" descent="-2858" horiz-adv-x="600" vert-adv-y="600"></glyph.data></g><g transform="matrix(.0065,0,0,-0.0065,12.761,7.029)"><path d="M394 0V37C301 42 295 50 295 122V635C236 613 178 596 109 583V553L165 551C205 549 209 544 209 495V122C209 50 203 42 111 37V0H394Z" id="g176-50"></path><glyph.data ascent="3439" descent="-2858" horiz-adv-x="494" vert-adv-y="494"></glyph.data></g></svg>, <svg height="15.7738pt" id="M279" style="vertical-align:-7.1379pt" version="1.1" viewbox="-0.0498162 -8.6359 17.6257 15.7738" width="17.6257pt" 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="M405 650H141L135 622C222 616 230 610 215 535L133 116C118 41 113 33 29 28L23 0H289L295 28C209 33 205 40 219 116L298 535C312 609 317 616 399 622L405 650Z" id="g113-74"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="428" vert-adv-y="428"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,4.719,3.132)"><path d="M463 633C453 636 427 644 417 648C388 660 349 667 316 667C183 667 100 592 100 483C100 398 176 335 223 305L259 282C321 242 358 203 358 149C358 66 301 22 234 22C110 22 70 131 57 208L24 205L28 48C51 23 128 -17 215 -17C342 -17 446 60 446 174C446 262 394 310 317 361L284 383C229 420 183 455 183 515C183 569 222 628 298 628C384 628 418 563 428 481L461 487C459 527 458 593 463 633Z" id="g50-84"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="487" vert-adv-y="487"></glyph.data></g><g transform="matrix(.0065,0,0,-0.0065,9.023,5.233)"><path d="M575 299C575 406 528 454 412 454C385 454 342 447 313 440L330 514L318 525C293 510 258 487 242 466L227 419C194 403 158 384 123 361L126 327C155 342 183 355 220 364L107 -148C96 -198 76 -210 19 -215L14 -253L259 -241V-206L240 -205C184 -202 183 -188 192 -141L220 -1C242 -10 269 -12 284 -12C352 5 434 48 484 102C542 165 575 238 575 299ZM479 290C479 170 380 41 305 41C281 41 249 60 237 72L300 395C329 399 353 401 374 401C426 401 479 377 479 290Z" id="g176-113"></path><glyph.data ascent="3439" descent="-2858" horiz-adv-x="600" vert-adv-y="600"></glyph.data></g><g transform="matrix(.0065,0,0,-0.0065,12.761,7.029)"><path d="M455 312C455 472 400 635 248 635C95 635 39 458 39 312C39 144 93 -12 248 -12C400 -12 455 166 455 312ZM361 314C361 173 337 30 249 30C163 30 131 174 131 313C131 451 155 594 248 594C334 594 361 454 361 314Z" id="g176-49"></path><glyph.data ascent="3439" descent="-2858" horiz-adv-x="494" vert-adv-y="494"></glyph.data></g></svg>, and <svg height="15.7151pt" id="M280" style="vertical-align:-7.079201pt" version="1.1" viewbox="-0.0498162 -8.6359 17.6257 15.7151" width="17.6257pt" 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="M405 650H141L135 622C222 616 230 610 215 535L133 116C118 41 113 33 29 28L23 0H289L295 28C209 33 205 40 219 116L298 535C312 609 317 616 399 622L405 650Z" id="g113-74"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="428" vert-adv-y="428"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,4.719,3.132)"><path d="M463 633C453 636 427 644 417 648C388 660 349 667 316 667C183 667 100 592 100 483C100 398 176 335 223 305L259 282C321 242 358 203 358 149C358 66 301 22 234 22C110 22 70 131 57 208L24 205L28 48C51 23 128 -17 215 -17C342 -17 446 60 446 174C446 262 394 310 317 361L284 383C229 420 183 455 183 515C183 569 222 628 298 628C384 628 418 563 428 481L461 487C459 527 458 593 463 633Z" id="g50-84"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="487" vert-adv-y="487"></glyph.data></g><g transform="matrix(.0065,0,0,-0.0065,9.023,5.233)"><path d="M575 299C575 406 528 454 412 454C385 454 342 447 313 440L330 514L318 525C293 510 258 487 242 466L227 419C194 403 158 384 123 361L126 327C155 342 183 355 220 364L107 -148C96 -198 76 -210 19 -215L14 -253L259 -241V-206L240 -205C184 -202 183 -188 192 -141L220 -1C242 -10 269 -12 284 -12C352 5 434 48 484 102C542 165 575 238 575 299ZM479 290C479 170 380 41 305 41C281 41 249 60 237 72L300 395C329 399 353 401 374 401C426 401 479 377 479 290Z" id="g176-113"></path><glyph.data ascent="3439" descent="-2858" horiz-adv-x="600" vert-adv-y="600"></glyph.data></g><g transform="matrix(.0065,0,0,-0.0065,12.761,7.029)"><path d="M452 139L416 148C386 81 373 77 319 77H141L282 220C372 312 414 373 414 464C414 569 332 635 240 635C181 635 132 609 101 574L42 493L70 467C98 506 143 562 209 562C280 562 324 515 324 435C324 347 261 272 197 197C148 139 89 84 34 29V0H417L452 139Z" id="g176-51"></path><glyph.data ascent="3439" descent="-2858" horiz-adv-x="494" vert-adv-y="494"></glyph.data></g></svg> through reinjection IGBTs.</div>

Journal of Engineering

fig24

Figure 24

Figure 24: Experimental Evaluation on the Influence of RCD Snubbers in a 3-Level Thyristor Based MLCR CSC 