Soft-Switching Technology for Three-phase Power Electronics Converters. Rui Li

Soft-Switching Technology for Three-phase Power Electronics Converters

for ZVS operation of S_o2 with an unbalanced load at d...Figure 12.50 Waveforms for ZVS operation of S₇ with an unbalanced load at di...Figure 12.51 Generation of gate driving signals with short‐circuit signal.Figure 12.52 Waveforms of short‐circuit signal.Figure 12.53 Power device voltage stress at different power levels.Figure 12.54 Efficiency curve at different power levels.

13 AppendixFigure A.1.1 Trace of vector

with symmetrical three‐phase voltage.Figure A.1.2 Eight state combinations for three‐phase bridges in three‐phase...Figure A.1.3 Positions of eight basic vectors of three‐phase bridges.Figure A.1.4 Composition of reference voltage vector in sector 1.Figure A.2.1 Twelve switching patterns of SVM 12: (a) sector 1‐1, (b) sector...Figure A.3.1 Twelve switching patterns of ZVS‐SVM: (a) sector 1‐1, (b) secto...Figure A.4.1 Topology of hard‐switching three‐phase grid inverter.Figure A.4.2 Driving sequence of SVM 12 in sector 1‐1 within one switching p...Figure A.4.3 Conduction time of phase A’s main switches S₁ and S₄ in one lin...Figure A.4.4 Typical EE cores with dimensions.Figure A.4.5 Driving sequence of ZVS‐SVM in sector 1‐1 within one switching ...Figure A.4.6 Key waveforms in sector 1‐1.Figure A.5.1 Topology of soft‐switching three‐phase grid inverter.Figure A.5.2 Relationship between voltage v_A0 and grid voltage v_a within 1/4...Figure A.5.3 Waveforms derivation of AC filter inductor current ripple with ...Figure A.5.4 ∆i_a×L within the first 1/4 line cycle.Figure A.6.1 Definitions of DC‐side currents.Figure A.6.2 Waveforms of resonant inductor i_Lr and DC bus current i_dc in on...Figure A.6.3 Waveforms of i_a, −i_c, and DC input current I_in within sector 1‐...Figure A.6.4 Waveforms of time‐domain DC bus current i_dc, DC filter capacito...