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CHAPTER 4: MOTOR AND MATRIX CONVERTER MODEL ZCM,b a ZCM,a ZCM,c b c ZDM,ab a ZDM,bc ZDM,ac b c CMImpedance DMImpedance DM + CM ZP,b ZP,a ZP,c ZP = Z ′ DM //ZCM a bc Z ′ DM,b Z ′ DM Z ′ DM,a = ZDM 3 Za−bc = ZP + ZP 2 Figure 4.15: Procedure to calculate analytically the impedance across a-bc Z ′ DM,c figuration (for example measured between phase a and bc) includes the CM impedance too. To consider this into the DM impedance estimation, the CM extra impedance had to be added to the impedance calculation process. In order to do this, some transfor- mations are needed to transform the DM impedance (-dm components in the model) into star configuration, in a way so as to be able to calculate analytically the parallel value with the CM one, to get a final impedance value to be compared with the reference. Assuming a balanced system, Fig. 4.15 explains this process: the star equivalent value for the DM impedance is one third of the original (delta) value, and this will be in parallel with the CM single phase impedance. This value is the single phase equivalent star impedance value, and before being compared with the DM impedance value, it has to be multiplied by 1.5, considering the impedance a-bc, that is one phase plus the parallel of the other two. This final value was compared by the GA with the reference experimental impedance measurement for the DM configuration. 4.5 GA to model other components 4.5.1 Modelling of the LISN The datasheet of the used Lisn, model: FCC-LISN-5-50-1-DEF STAN 59-41, provides its schematic as in Fig. 4.18. A detail is noticeable though: the inductor has multiple connections that are not further specified. On the datasheet a real impedance versus frequency is reported, so that graph has been imported in Matlab and a GA program has been used to evaluate the values of the 4 inductances, whose total value had to 51
CHAPTER 4: MOTOR AND MATRIX CONVERTER MODEL Impedance [Ω] 200 0 −200 −400 −600 −800 −1000 0.1 1 10 Frequency [MHz] Model [Re] Model [Im] System [Re] System [Im] Figure 4.16: Matrix converter input DM: matching of the measured and simulated Impedance [Ω] 2000 1000 0 −1000 −2000 −3000 −4000 −5000 impedance 0.1 1 10 Frequency [MHz] Model [Re] Model [Im] System [Re] System [Im] Figure 4.17: Matrix converter output DM: matching of the measured and simulated impedance 52
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EMI Filter Design for Matrix Conver
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that may involve long Finite Elemen
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CONTENTS 3.1 Introduction . . . . .
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CONTENTS B External DLL 118 B.1 C c
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LIST OF FIGURES 2.10 Measurement at
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LIST OF FIGURES 6.9 CM Conducted EM
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LIST OF FIGURES 8.18 Input CM and D
Page 15 and 16: LIST OF TABLES 7.9 Attenuation for
Page 17 and 18: CHAPTER 1: INTRODUCTION the receive
Page 19 and 20: CHAPTER 1: INTRODUCTION Abs. Magnit
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Page 23 and 24: CHAPTER 1: INTRODUCTION • Make th
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Page 27 and 28: CHAPTER 1: INTRODUCTION the filters
Page 29 and 30: CHAPTER 1: INTRODUCTION experimenta
Page 31 and 32: CHAPTER 2 Experimental implementati
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Page 51 and 52: CHAPTER 3: HF MODELLING STRATEGY De
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Page 71 and 72: 5.1 Introduction CHAPTER 5 EMI Meas
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Page 77 and 78: CHAPTER 5: EMI MEASUREMENTS iA iB I
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Page 81 and 82: CHAPTER 5: EMI MEASUREMENTS Motor c
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Page 85 and 86: CHAPTER 5: EMI MEASUREMENTS CM Volt
Page 87 and 88: CHAPTER 6: SIMULATIONS OF INPUT AND
Page 93 and 94: 78 Figure 6.7: Complete HF model Po
Page 97 and 98: CHAPTER 7 Filter Design and realiza
Page 99 and 100: CHAPTER 7: FILTER DESIGN AND REALIZ
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CHAPTER 8 Filter realization and ex
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CHAPTER 8: FILTER REALIZATION AND E
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CHAPTER 9 Conclusions and Further w
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APPENDIX A Scientific Publications
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B.1 C code APPENDIX B External DLL
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APPENDIX B: EXTERNAL DLL Tseq_Pulse
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APPENDIX B: EXTERNAL DLL B.2 MAST c
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References [1] RTCA Incorporated. R
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REFERENCES nious drives. In Europea
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REFERENCES [48] D.F. Knurek. Reduci
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