LEADER 01178nam--2200373---450- 001 990000579170203316 005 20100824144856.0 035 $a0057917 035 $aUSA010057917 035 $a(ALEPH)000057917USA01 035 $a0057917 100 $a20010723d1817----km-y0itay0103----ba 101 $aita 102 $aIT 105 $a||||||||001yy 200 1 $aSulla natura e necessità della scienza delle cose e delle storie umane. Saggio 210 $aNapoli$cpresso Porcelli$d1817 215 $aXX, 240 p.$d20 cm 410 $12001 700 1$aJANNELLI,$bCataldo$0495601 801 0$aIT$bsalbc$gISBD 912 $a990000579170203316 951 $aFV B 4 2 9$b3407$cFV B 4 2 959 $aBK 969 $aVENTIMIGLIA 979 $aPATTY$b90$c20010723$lUSA01$h1101 979 $aPATTY$b90$c20010723$lUSA01$h1232 979 $c20020403$lUSA01$h1707 979 $aPATRY$b90$c20040406$lUSA01$h1640 979 $aCAPRI$b90$c20100824$lUSA01$h1448 979 $aCAPRI$b90$c20100824$lUSA01$h1448 979 $aCAPRI$b90$c20100824$lUSA01$h1448 996 $aSulla natura e necessità della scienza delle cose e delle storie umane. Saggio$9883366 997 $aUNISA LEADER 00929nam0-2200289 --450 001 9910750299403321 005 20231107114208.0 010 $a978-88-329-0712-4 100 $a20231107d2022----kmuy0itay5050 ba 101 0 $aita$cita 102 $aIT 105 $ay 001yy 200 1 $aFigli dello stesso mare$eFrancesco e la nuova Alleanza per il Mediterraneo$fRiccardo Cristiano$gprefazione di Massimo Borghesi 210 $aRoma$cCastelvecchi$d2022 215 $a228 p.$d21 cm 225 1 $aNodi 610 0 $aPaesi mediterranei$aRelazioni interculturali$aRuolo della Chiesa cattolica 676 $a261.8092$v23$zita 700 1$aCristiano,$bRiccardo$f<1955- >$01432644 702 1$aBorghesi,$bMassimo 801 0$aIT$bUNINA$gREICAT$2UNIMARC 901 $aBK 912 $a9910750299403321 952 $aSTO 103$b1276/2023$fFSPBC 959 $aFSPBC 996 $aFigli dello stesso mare$93577592 997 $aUNINA LEADER 09030nam 2200661 450 001 9910822663103321 005 20230125205502.0 010 $a0-470-82832-3 010 $a0-470-82403-4 010 $a0-470-82404-2 024 7 $a10.1002/9780470824054 035 $a(CKB)2550000001277681 035 $a(EBL)693323 035 $a(OCoLC)869460708 035 $a(MiAaPQ)EBC693323 035 $a(DLC) 2014003756 035 $a(CaBNVSL)mat06817684 035 $a(IDAMS)0b0000648254aa6a 035 $a(IEEE)6817684 035 $a(Au-PeEL)EBL693323 035 $a(CaPaEBR)ebr10862641 035 $a(CaONFJC)MIL599745 035 $a(OCoLC)922902939 035 $a(PPN)188574239 035 $a(EXLCZ)992550000001277681 100 $a20151222d2014 uy 101 0 $aeng 135 $aur|n|---||||| 181 $2rdacontent 182 $2rdamedia 183 $2rdacarrier 200 00$aPower electronic converters for microgrids /$fSuleiman M. Sharkh...[and others] 210 1$aSingapore :$cWiley-IEEE Press,$d[2014] 210 2$a[Piscataqay, New Jersey] :$cIEEE Xplore,$d[2014] 215 $a1 online resource (312 p.) 300 $aDescription based upon print version of record. 311 $a0-470-82405-0 311 $a1-306-68494-3 320 $aIncludes bibliographical references at the end of each chapters and index. 327 $aAbout the Authors xi -- Preface xiii -- Acknowledgments xv -- 1 Introduction 1 -- 1.1 Modes of Operation of Microgrid Converters 2 -- 1.1.1 Grid Connection Mode 2 -- 1.1.2 Stand-Alone Mode 3 -- 1.1.3 Battery Charging Mode 3 -- 1.2 Converter Topologies 4 -- 1.3 Modulation Strategies 6 -- 1.4 Control and System Issues 7 -- 1.5 Future Challenges and Solutions 9 -- References 10 -- 2 Converter Topologies 13 -- 2.1 Topologies 13 -- 2.1.1 The Two-Level Converter 13 -- 2.1.2 The NPC Converter 14 -- 2.1.3 The CHB Converter 15 -- 2.2 Pulse Width Modulation Strategies 16 -- 2.2.1 Carrier-Based Strategies 17 -- 2.2.2 SVM Strategies 22 -- 2.3 Modeling 27 -- References 28 -- 3 DC-Link Capacitor Current and Sizing in NPC and CHB Inverters 29 -- 3.1 Introduction 29 -- 3.2 Inverter DC-Link Capacitor Sizing 30 -- 3.3 Analytical Derivation of DC-Link Capacitor Current RMS Expressions 32 -- 3.3.1 NPC Inverter 33 -- 3.3.2 CHB Inverter 36 -- 3.4 Analytical Derivation of DC-Link Capacitor Current Harmonics 37 -- 3.4.1 NPC Inverter 38 -- 3.4.2 CHB Inverter 39 -- 3.5 Numerical Derivation of DC-Link Capacitor Current RMS Value and Voltage Ripple Amplitude 41 -- 3.6 Simulation Results 42 -- 3.7 Discussion 45 -- 3.7.1 Comparison of Capacitor Size for the NPC and CHB Inverters 45 -- 3.7.2 Comparison of Presented Methods for Analyzing DC-Link Capacitor Current 46 -- 3.7.3 Extension to Higher-Level Inverters 48 -- 3.8 Conclusion 48 -- References 48 -- 4 Loss Comparison of Two- and Three-Level Inverter Topologies 51 -- 4.1 Introduction 51 -- 4.2 Selection of IGBT-Diode Modules 53 -- 4.3 Switching Losses 54 -- 4.3.1 Switching Losses in the Two-Level Inverters 54 -- 4.3.2 Switching Losses in the NPC Inverter 57 -- 4.3.3 Switching Losses in the CHB Inverter 58 -- 4.4 Conduction Losses 58 -- 4.4.1 Conduction Losses in the Two-Level Inverter 60 -- 4.4.2 Conduction Losses in the NPC Inverter 61 -- 4.4.3 Conduction Losses in the CHB Inverter 63 -- 4.5 DC-Link Capacitor RMS Current 65 -- 4.6 Results 69. 327 $a4.7 Conclusion 70 -- References 71 -- 5 Minimization of Low-Frequency Neutral-Point Voltage Oscillations in NPC Converters 73 -- 5.1 Introduction 73 -- 5.2 NPC Converter Modulation Strategies 74 -- 5.3 Minimum NP Ripple Achievable by NV Strategies 77 -- 5.3.1 Locally Averaged NP Current 78 -- 5.3.2 Effect of Switching Constraints 79 -- 5.3.3 Zero-Ripple Region 81 -- 5.3.4 A Lower Boundary for the NP Voltage Ripple 81 -- 5.4 Proposed Band-NV Strategies 83 -- 5.4.1 Criterion Used by Conventional NV Strategies 83 -- 5.4.2 Proposed Criterion 84 -- 5.4.3 Regions of Operation 85 -- 5.4.4 Algorithm 88 -- 5.4.5 Switching Sequences - Conversion to Band-NV 90 -- 5.5 Performance of Band-NV Strategies 91 -- 5.5.1 NP Voltage Ripple 91 -- 5.5.2 Effective Switching Frequency - Output Voltage Harmonic Distortion 93 -- 5.6 Simulation of Band-NV Strategies 94 -- 5.7 Hybrid Modulation Strategies 100 -- 5.7.1 Proposed Hybrid Strategies 101 -- 5.7.2 Simulation Results 102 -- 5.8 Conclusions 106 -- References 107 -- 6 Digital Control of a Three-Phase Two-Level Grid-Connected Inverter 109 -- 6.1 Introduction 109 -- 6.2 Control Strategy 112 -- 6.3 Digital Sampling Strategy 113 -- 6.4 Effect of Time Delay on Stability 115 -- 6.5 Capacitor Current Observer 116 -- 6.6 Design of Feedback Controllers 119 -- 6.7 Simulation Results 121 -- 6.8 Experimental Results 123 -- 6.9 Conclusions 127 -- References 128 -- 7 Design and Control of a Grid-Connected Interleaved Inverter 131 -- 7.1 Introduction 131 -- 7.2 Ripple Cancellation 135 -- 7.3 Hardware Design 137 -- 7.3.1 Hardware Design Guidelines 138 -- 7.3.2 Application of the Design Guidelines 145 -- 7.4 Controller Structure 146 -- 7.5 System Analysis 149 -- 7.5.1 Effect of Passive Damping and Grid Impedance 151 -- 7.5.2 Effect of Computational Time Delay 151 -- 7.5.3 Grid Disturbance Rejection 154 -- 7.6 Controller Design 154 -- 7.7 Simulation and Practical Results 158 -- 7.8 Conclusions 167 -- References 167 -- 8 Repetitive Current Control of an Interleaved Grid-Connected Inverter 171. 327 $a8.1 Introduction 171 -- 8.2 Proposed Controller and System Modeling 172 -- 8.3 System Analysis and Controller Design 175 -- 8.4 Simulation Results 178 -- 8.5 Experimental Results 179 -- 8.6 Conclusions 182 -- References 182 -- 9 Line Interactive UPS 185 -- 9.1 Introduction 185 -- 9.2 System Overview 188 -- 9.3 Core Controller 192 -- 9.3.1 Virtual Impedance and Grid Harmonics Rejection 193 -- 9.4 Power Flow Controller 195 -- 9.4.1 Drooping Control Equations 195 -- 9.4.2 Small Signal Analysis 196 -- 9.4.3 Stability Analysis and Drooping Coefficients Selection 200 -- 9.5 DC Link Voltage Controller 206 -- 9.6 Experimental Results 209 -- 9.7 Conclusions 217 -- References 218 -- 10 Microgrid Protection 221 -- 10.1 Introduction 221 -- 10.2 Key Protection Challenges 221 -- 10.2.1 Fault Current Level Modification 221 -- 10.2.2 Device Discrimination 223 -- 10.2.3 Reduction in Reach of Impedance Relays 223 -- 10.2.4 Bidirectionality and Voltage Profile Change 224 -- 10.2.5 Sympathetic Tripping 224 -- 10.2.6 Islanding 224 -- 10.2.7 Effect on Feeder Reclosure 224 -- 10.3 Possible Solutions to Key Protection Challenges 225 -- 10.3.1 Possible Solutions to Key Protection Challenges for an Islanded Microgrid Having IIDG Units 225 -- 10.4 Case Study 229 -- 10.4.1 Fault Level Modification 231 -- 10.4.2 Blinding of Protection 232 -- 10.4.3 Sympathetic Tripping 233 -- 10.4.4 Reduction in Reach of Distance Relay 233 -- 10.4.5 Discussion 234 -- 10.5 Conclusions 235 -- References 236 -- 11 An Adaptive Relaying Scheme for Fuse Saving 239 -- 11.1 Introduction 239 -- 11.1.1 Preventive Solutions Proposed in the Literature 240 -- 11.1.2 Remedial Solutions Proposed in the Literature 241 -- 11.1.3 Contributions of the Chapter 242 -- 11.2 Case Study 242 -- 11.3 Simulation Results and Discussion 245 -- 11.4 Fuse Saving Strategy 247 -- 11.4.1 Options and Considerations for the Selection of Ipickup of the 50 Element 249 -- 11.4.2 Adaptive Algorithm 251 -- 11.5 How Reclosing Will Be Applied 252 -- 11.6 Observations 255. 327 $a11.7 Conclusions 257 -- References 257 -- Appendix A SVM for the NPC Converter-MATLABª-Simulink Models 261 -- A.1 Calculation of Duty Cycles for Nearest Space Vectors 261 -- A.2 Symmetric Modulation Strategy 262 -- A.3 MATLABª-Simulink Models 263 -- References 279 -- Appendix B DC-Link Capacitor Current Numerical Calculation 281 -- Index 285. 330 $aAs concerns about climate change, energy prices, and energy security loom, regulatory and research communities have shown growing interest in alternative energy sources and their integration into distributed energy systems. However, many of the candidate microgeneration and associated storage systems cannot be readily interfaced to the 50/60 Hz grid. In Power Electronic Converters for Microgrids, Sharkh and Abu-Sara introduce the basics and practical concerns of analyzing and designing such micro-generation grid interface systems. Readers will become familiar with methods for stably feeding th 606 $aElectric current converters 606 $aSmall power production facilities$xEquipment and supplies 615 0$aElectric current converters. 615 0$aSmall power production facilities$xEquipment and supplies. 676 $a621.31/4 700 $aSharkh$b S. M$g(Suleiman M.)$01659143 702 $aSharkh$b S. M$g(Suleiman M.), 801 0$bCaBNVSL 801 1$bCaBNVSL 801 2$bCaBNVSL 906 $aBOOK 912 $a9910822663103321 996 $aPower electronic converters for microgrids$94013665 997 $aUNINA LEADER 02193nas 2200601-a 450 001 9910624322503321 005 20240413022330.0 035 $a(CKB)110978977275632 035 $a(CONSER)e--23000011- 035 $a(EXLCZ)99110978977275632 100 $a20750726a18919999 --- a 101 0 $aeng 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 04$aThe American school board journal 210 $aMilwaukee, Wis. $cBruce Pub. Co 215 $a1 online resource 300 $aPublished: Washington, D.C., <1977>-May 1984; Alexandria, Va., June 1984- 300 $aEditors: Mar.-Dec. 1891, W.G. Bruce; Jan.-June, 1892, S. Cocraft; July 1892-Dec. 1912, W.G. Bruce; Jan. 1913-June 1924. W.C. Bruce; July 1924- W.G. Bruce, W.C. Bruce. 311 08$aPrint version: The American school board journal. 0003-0953 (DLC)e 23000011 (OCoLC)1480706 330 $a"A periodical of school administration." 517 1 $aSchool board journal 517 1 $aAmerican school 517 1 $aASBJ 531 $aAMERICAN SCHOOL BOARD JOURNAL 531 $aAM SCH BOARD J 531 0 $aAm. sch. board j. 606 $aEducation$vPeriodicals 606 $aSchool management and organization$vPeriodicals 606 $aSchool boards$zUnited States$vPeriodicals 606 $aEducation$2fast$3(OCoLC)fst00902499 606 $aSchool boards$2fast$3(OCoLC)fst01107008 606 $aSchool management and organization$2fast$3(OCoLC)fst01107575 607 $aUnited States$2fast 608 $aPeriodicals.$2fast 608 $aPeriodicals.$2lcgft 615 0$aEducation 615 0$aSchool management and organization 615 0$aSchool boards 615 7$aEducation. 615 7$aSchool boards. 615 7$aSchool management and organization. 676 $a370/.5 702 $aBruce$b William George$f1856-1949, 702 $aBruce$b William Conrad$f1882- 702 $aCocroft$b Susanna$f1862-1940, 712 02$aNational School Boards Association, 906 $aJOURNAL 912 $a9910624322503321 920 $aexl_impl conversion 996 $aThe American school board journal$92968069 997 $aUNINA