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3. FUNDAMENTALS <strong>OF</strong> DVR Mustafa İNCİ This is more than the DVR voltage rating (0.5p.u.), therefore the device is voltage limited i.e. V DVR , max = 0. 5pu . The lower limit of the retained supply=0.9p.u.– 0.4p.u.=0.5 p.u. (Ramachandaramurthy et al., 2004). The equivalent circuit of the conventional DVR shown in Figure 3.1 is illustrated using Figure 3.8. From Figure 3.1, it is quite clear that the voltage on the load side of the DVR is given by V = V + V (3.5) L S DVR i f s s p p inv f filter M DVR S Load (a) L filter transformer n 2 R i n V inv n 2 L f n 2 Rs n 2 Ls Rp Lp n 2 C ZM f n V filter V DVR V S Load (b) V L 25
3. FUNDAMENTALS <strong>OF</strong> DVR Mustafa İNCİ Load Figure 3.8. (a), (b) and (c) Equivalent circuit of system shown in Figure 3.1 (c) By using equivalent circuit, the injected voltage can be written as V DVR Z = M nV filter Req + jωL (3.6) eq The relationship between and can be expressed as V filter Z 1 jωC = C f = Vinv = ZC + Ri + Z 1 L + Ri + jωL 2 f jωC f V inv ( 1− ω L f C f ) + jRiωC f (3.7) By using (3.6) and (3.7), can be rearranged in (3.8) and (3.9) V Z V ω + = M DVR n Req + j L 2 eq inv ( 1− ω L f C f ) jωRiC f Z M V ( R + jω L )( [ 1− ω L C ) + jωR C ] inv = n 2 eq eq f f i f (3.8) V DVR = NV inv (3.9) 26
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Page 3 and 4: ABSTRACT MSc THESIS MODELING AND AN
Page 5 and 6: ACKNOWLEDGEMENTS First and foremost
Page 7 and 8: 3.2.2.1. Inverters ................
Page 9 and 10: VII
Page 12 and 13: LIST OF FIGURES PAGES Figure 1.1. D
Page 14 and 15: Figure 5.3. Injected voltages by us
Page 16 and 17: LIST OF SYMBOLS C : DC Link Capacit
Page 18 and 19: LIST OF ABBREVATIONS A AC APF ASD C
Page 20: 1. INTRODUCTION Mustafa İNCİ 1. I
Page 23 and 24: 1. INTRODUCTION Mustafa İNCİ 4
Page 25 and 26: 2. POWER QUALITY Mustafa İNCİ 2.1
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Page 34 and 35: 3. FUNDAMENTALS OF DVR Mustafa İNC
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Page 66 and 67: 4. MODELING OF PROPOSED DVR Mustafa
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4. MODELING OF PROPOSED DVR Mustafa
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5. SIMULATION RESULTS AND CASE STUD
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6. CONCLUSION Mustafa İNCİ 6. CON
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6. CONCLUSION Mustafa İNCİ • En
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DELFINO, B., FORNARI, F., PROCOPIO,
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KARIMI-GHARTEMANI M., IRAVANI M.R.
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OĞUZ, G., 2004. Performance Of A D
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TESTA A., AKRAM M.F., BURCH R., CAR
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BIOGRAPHY Mustafa İNCİ was born i
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APPENDIX 123
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LIST OF PUBLICATIONS International
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