Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase Inverter

<div>Bode magnitude plots of <svg height="9.10848pt" id="M64" style="vertical-align:-3.291111pt" version="1.1" viewbox="-0.0498162 -5.81737 10.7784 9.10848" width="10.7784pt" 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="M219 86C216 168 211 250 206 337C201 410 189 448 163 448C131 448 79 396 43 344L60 322C91 359 110 375 118 375S132 358 136 298C141 238 152 81 155 -12H182C242 62 331 177 390 258C435 321 451 360 451 391C450 424 432 448 408 448C390 448 372 435 366 419C362 410 362 401 366 394C373 383 376 367 376 350C376 283 262 138 221 86H219Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,5.811,3.132)"><path d="M452 282C452 397 389 451 302 451C268 451 227 441 188 422C95 377 24 281 24 154C24 65 70 -12 173 -12C240 -12 297 16 342 52C418 113 452 201 452 282ZM359 282C359 163 308 66 247 39C237 35 225 32 212 32C151 32 114 79 114 157C114 301 180 380 223 398C240 405 250 408 265 408C315 408 359 369 359 282Z"></path></g></svg>(s)/<i>d</i>(s). (a) Variation of <i>ω</i><sub><i>o</i></sub> and <i>ω</i><sub><i>c</i></sub> and (b) variation of <i>k</i><sub><i>p</i></sub> and <i>k</i><sub><i>i</i></sub>.</div>

International Transactions on Electrical Energy Systems

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Figure 13

Figure 13: Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase Inverter 