3-Phase Motor Drive 3-Phase Modulation Po=10kW...3-Phase Motor Drive 3-Phase Modulation Po=10kW...
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P. 1 © 2016 ROHM Co.,Ltd. 3-Phase Motor Drive 3-Phase Modulation Po=10kW 3-Phase Motor Drive 3-Phase Modulation Simulation Circuit Input: Vin=400V Output: Po=10kW Vph_ph=320Vpk (Vin*MR) Im=25.5A (Po/Vin/MR/√1.5) PWM: fsw=20kHz (3-Phase Modulation) rpm=3000 MR=0.8 (Vph_ph(pk)/Vin) td1=100ns td2=100ns Gate Drive: Vd=10V Vs=-2V R source1=5Ω R sink1=2Ω R source2=5Ω R sink2=2Ω Q1,2,3,4,5,6: R6047MNZ1 (600V 47A) Si MOSFET Fast Reverse Recovery L1,2,3: 1mH R1,2,3: {Po/Im/Im/3} R4: {(Im-1)*10k} R5: 10kΩ Tj=100℃ SIMetrix SPICE Simulation Data File 3-Phase Motor
Transcript of 3-Phase Motor Drive 3-Phase Modulation Po=10kW...3-Phase Motor Drive 3-Phase Modulation Po=10kW...
P. 1 © 2016 ROHM Co.,Ltd.
3-Phase Motor Drive 3-Phase Modulation Po=10kW
3-Phase Motor Drive 3-Phase Modulation Simulation Circuit
Input: Vin=400V Output: Po=10kW Vph_ph=320Vpk (Vin*MR) Im=25.5A (Po/Vin/MR/√1.5) PWM: fsw=20kHz (3-Phase Modulation) rpm=3000 MR=0.8 (Vph_ph(pk)/Vin) td1=100ns td2=100ns Gate Drive: Vd=10V Vs=-2V R source1=5Ω R sink1=2Ω R source2=5Ω R sink2=2Ω Q1,2,3,4,5,6: R6047MNZ1 (600V 47A) Si MOSFET Fast Reverse Recovery L1,2,3: 1mH R1,2,3: {Po/Im/Im/3} R4: {(Im-1)*10k} R5: 10kΩ Tj=100℃
SIMetrix SPICE Simulation Data File
3-Phase Motor
P. 2 © 2016 ROHM Co.,Ltd.
Simulation Waveform 1
Blue: ImU
Red: Energy Loss_Q1
Green: Energy Loss_Q2
Red: Pd_Q1 Green: Pd_Q2
Vmod, Vph_ph, Im
Green: ImV Red: ImW
Blue: -V(UC) Green: -V(VC) Red: -V(WC)
Energy Loss_Q1,Q2
Power Dissipation_Q1,Q2
Blue: Vu_v Green: Vv_w Red: Vw_u
P. 3 © 2016 ROHM Co.,Ltd.
Simulation Waveform 2
Q2: onoff
Q1: offon
Green: Is_Q2 Red: Id_Q1
Red: Q1.G-Q1.S
Green: Q2.G-Q2.S
Blue: Q1.22-Q1.3(inner) Olive: Q2.22-Q2.3(inner)
Q1: onoff
Q2: offon
Red: Q1.G-Q1.S
Blue: Q1.22-Q1.3(inner)
Green: Q2.G-Q2.S
Olive: Q2.22-Q2.3(inner)
Is_Q2, Id_Q1
Vgs_Q1,Q2
Id_Q1, Is_Q2
Vgs_Q1,Q2
Green: Is_Q2 Red: Id_Q1
Q2 Reverse Recovery Current
Q2 Reverse Recovery Current
P. 4 © 2016 ROHM Co.,Ltd.
Efficiency, Power Dissipation 1
Vin=300V~500V
Power Dissipation (W/ps)
Efficiency
Power Dissipation (W/pc)
Efficiency
Q1,Q2,Q3,Q4,Q5,Q6
Po=2kW~12kW
Q1,Q2,Q3,Q4,Q5,Q6
Po=10kW fsw=20kHz
MR=0.8 Tj=100℃
Vin=400V fsw=20kHz
MR=0.8 Tj=100℃
P. 5 © 2016 ROHM Co.,Ltd.
Efficiency, Power Dissipation 2
fsw=10kHz~100kHz
Power Dissipation (W/ps)
Efficiency
Power Dissipation (W/pc)
Efficiency
Q1,Q2,Q3,Q4,Q5,Q6
Tj=-25℃~125℃
Q1,Q2,Q3,Q4,Q5,Q6
Vin=400V Po=10kW
MR=0.8 Tj=100℃
Vin=400V Po=10kW
fsw=20kHz MR=0.8
P. 6 © 2016 ROHM Co.,Ltd.
Output – Modulation Ratio
Vu_v
ImU MR=0.6~1.1
Vu_v
ImU
Red: MR=0.6
Green: MR=0.7
Blue: MR=0.8
Olive: MR=0.9
Aqua: MR=1.0
Brown: MR=1.1
Red: MR=0.6
Green: MR=0.7
Blue: MR=0.8
Olive: MR=0.9
Aqua: MR=1.0
Brown: MR=1.1
Vu_v
ImU
Vin=400V Po=10kW
fsw=20kHz Tj=100℃
Vin=400V Po=10kW
fsw=20kHz Tj=100℃
Red: Vu_v (Vpk)
Green: Vu_v (Vrms)
ImU (Arms)
