DC-AC Motor Drive 3-Phase 3-Phase-Modulation …...DC-AC Motor Drive 3-Phase 3-Phase-Modulation...
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P. 0 © 2018 ROHM Co.,Ltd. DC-AC Motor Drive 3-Phase 3-Phase-Modulation Po=20kW Input : Vin=500V Output : Po=20kW Vpp=400Vpk Im=40.8A PWM : MR=0.8 fsw=20kHz(3-Phase-Modulation) rpm=3000 Gate Drive : Vd=10V R source=2Ω R sink=1Ω Q1～Q6 : R6076MNZ1 MOSFET(600V 76A) L1～L3 : 500uH Tj=100℃ DC-AC Motor Drive 3-Phase 3-Phase-Modulation Po=20kW Simulation Circuit ImU ImV ImW
Transcript of DC-AC Motor Drive 3-Phase 3-Phase-Modulation …...DC-AC Motor Drive 3-Phase 3-Phase-Modulation...
P. 0 © 2018 ROHM Co.,Ltd.
DC-AC Motor Drive 3-Phase 3-Phase-Modulation Po=20kW
Input : Vin=500V
Output : Po=20kW
Vpp=400Vpk
Im=40.8A
PWM : MR=0.8
fsw=20kHz(3-Phase-Modulation)
rpm=3000
Gate Drive : Vd=10V
R source=2Ω
R sink=1Ω
Q1～Q6 : R6076MNZ1
MOSFET(600V 76A)
L1～L3 : 500uH
Tj=100℃
DC-AC Motor Drive 3-Phase 3-Phase-Modulation Po=20kW Simulation Circuit
ImU
ImV
ImW
P. 1 © 2018 ROHM Co.,Ltd.
Simulation Waveform
Im, Vpp, Vmod (0～20ms) Vin=500V Po=20kW MR=0.8 fsw=20kHz Tj=100℃
Red : ImU(A)
Loss(J)
Vpp(V)
Green : ImV(A) Blue : ImW(A)
Vmod(V)
Red : Vmod-U(V)
Red : Q1
Red : Vpp-UV (V)
Green : Vmod-V(V)
Blue : Vmod-W(V)
Loss, Pd (Q1,Q2)
Green : Q2
Pd_Q1(kW)
Pd_Q2(kW)
Red : Q1
Green : Q2
Im(V)
P. 2 © 2018 ROHM Co.,Ltd.
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Vin(V)
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Efficiency, Power Dissipation 1
Pd(W) Power Dissipation
Vin : 300V～500V Po=20kW MR=0.8 fsw=20kHz Tj=100℃
Efficiency : 100×Po/Pin
Efficiency (%)
Efficiency : 100×Po/Pin
Pd(W) Power Dissipation
Po : 10kW～30kW
Efficiency (%)
Vin=500V MR=0.8 fsw=20kHz Tj=100℃
Q1～Q6
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Po
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Dis
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Po(kW)
Q1～Q6
P. 3 © 2018 ROHM Co.,Ltd.
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Dis
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Tj(℃)
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Efficiency, Power Dissipation 2
Pd(W) Power Dissipation
fsw : 10kHZ～100kHz Vin=500V Po=20kW MR=0.8 Tj=100℃
Efficiency : 100×Po/Pin
Efficiency (%)
Efficiency : 100×Po/Pin
Pd(W) Power Dissipation
Tj : -25℃～125℃
Efficiency (%)
Vin=500V Po=20kW MR=0.8 fsw=20kHz
Q1～Q6
Q1～Q6
P. 4 © 2018 ROHM Co.,Ltd.
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ImU
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MR
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0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2
Vp
p-U
V (
V)
Output –Modulation Ratio-
ImU(A)
Vpp-UV, ImU Vin=500V Po=20kW fsw=20kHz Tj=100℃
MR : 0.6～1.1
Vpp-UV(V)
Vin=500V Po=20kW fsw=20kHz Tj=100℃
Vpp-UV(V)
Brown : MR=1.1 Aqua : MR=1.0 Olive : MR=0.9 Blue : MR=0.8 Green : MR=0.7 Red : MR=0.6
Red : MR=0.6 Green : MR=0.7 Blue : MR=0.8 Olive : MR=0.9 Aqua : MR=1.0 Brown : MR=1.1
ImU(Arms)
Vpp-UV(Vpk)
Vpp-UV(Vrms)
ImU(A)
