short-circuit type ii - messe frankfurt
TRANSCRIPT
Digitally Controlled IGBT Gate Driver for
HVDC Applications with
Advance Protection Features in a Short
-Circuit Type II ScenarioRicha Singh, Power Integrations GmbH
About the Speaker
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Richa Singh is an Application Engineer in Industrial Gate Driver group of Power Integrations, where I am working on Gate drivers for HVDC applications. She received her Bachelors degree from GalgotiasCollege of Engineering and Technology, India and Masters degree from Ernst Abbe Hochschule, Jena, Germany. During her Masters internship and thesis, she worked in Robert Bosch GmbH for an year on topics related to characterization of passive components. Later she worked for 2 years in Würth Elektronik GmbH as a Product Manager for passive components.
1SP0351-Functional Blocks
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Desaturation monitoring
Fiber optical interface
optionally rotatable
Rugged +15V supply input connector
Optionally rotatable
Dynamic Advanced Active Clamping allows extended DC-link voltage in off-state for up to 60 s
Gate/Emitter
connection
Gate resistors
Cable connector to StakPak
+-50A peak output current booster stage
Collector connection
Data for Press Pack IGBT used as DUT
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DC collector current (IC) 2000A
Collector-emitter voltage (VCES) 4500V
Gate-emitter voltage (VGES) ±20V
Mounting force (FM) 70kN
Normal IGBT SwitchingCharacteristics
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PWM
vCE1
i C3
vDC
vGE1
GDU-1Fiber
vPWM(12)
vSO(12)
GND
GND
LLoad
LStray
CDC
OFF
GDU-2
vCE2 vGE2
GDU-3 (DUT)
vCE3vGE3
GDU-4Fiber
vPWM(34)
vSO(34)
GND
GND
Fiber
Fiber
Interface Boardfor GDU-1and GDU-2
Interface Boardfor GDU-3and GDU-4
OFF
OFF
iC2 iC1
T1T2
T4 T3
Normal Switching–Equivalent Circuit
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Normal Switching–Test Setup
7
DUT: 5SNA 2000K452300
GDU: 1SP0351
The parallel connection is
necessary in order to realize
the SC condition without
saturating the other IGBT
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Normal Switching–Turn-OFF
8
Single-Pulse-Test was performed on
ABB’s 5SNA 2000K452300
VDC = 3000V
iC = 4000A
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Normal Switching–Turn-ON
9
Double-Pulse-Test was performed on
ABB’s 5SNA 2000K452300
VDC = 3000V
iC = 4000A
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Short Circuit Type I–Equivalent Circuit
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PWM
vCE1
i C3
vDC
vGE1
GDU-1Fiber
vPWM(12)
vSO(12)
GND
GND
LLoad
LStray
CDC
OFF
GDU-2
vCE2 vGE2
GDU-3 (DUT)
vCE3vGE3
GDU-4Fiber
vPWM(34)
vSO(34)
GND
GND
Fiber
Fiber
Interface Boardfor GDU-1and GDU-2
Interface Boardfor GDU-3and GDU-4
OFF
OFF
iC2 iC1
T1T2
T4 T3
Short Circuit Type I–Test Setup
12
DUT: 5SNA 2000K452300
GDU: 1SP0351
Load inductor is replaced
by metal bar
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Short Circuit Type I–Result
13
VDC = 3000V
iSC = 8kA
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Bridge Shoot Through–Equivalent Circuit
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Bridge Shoot Through–Test Setup
16
DUT: 5SNA 2000K452300
GDU: 1SP0351
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TPulse,top (t1-t0) 70µs
TPulse,bot (t3-t2) 20µs
TDelay,bot (t2-t0) 50µs
Bridge Shoot Through–Control Signal
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Bridge Shoot Through–Result
18
VDC = 2200V
iSC,top = 7.3kA
iSC,bot = 6.7kA
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Short Circuit Type II–Equivalent Circuit
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ON
vCE1
i C3
vDC
vGE1
GDU-1
Fiber
vPWM(12)
vSO(12)
GND
GND
LLoad
LStray
CDC
PWM
GDU-2
vCE2 vGE2
GDU-3 (DUT)
vCE3vGE3
GDU-4
CE4GE4 vv
Fiber
vPWM(34)
vSO(34)
GND
GND
Fiber
Fiber
Interface Boardfor GDU-1and GDU-2
Interface Boardfor GDU-3and GDU-4
PWM
OFF
T1T2
T4 T3
Current Sharing during Turn-Off for T1 and T2
21
Due to the distance differences
between T1 and T2 to the DC link
capacitor, IGBT T1 (red) takes
dynamically more current than IGBT
T2 (black), but is still sufficient for
testing IGBT T3 in SC II scenario. The
static current sharing (t < 4 µs) is
optimal.
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Short Circuit Type II–Control Signals
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TPulse,bot (t1-t0) 60µs
TPulse,top (t3-t2) 15µs
TDelay,bot (t2-t0) 40µs
Short Circuit Type II–Result
24
VDC = 3000V
iSC3 = 11.8kA
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Gate Driver function is to protect costly power semiconductor
Power Integrations 1SP0351 gate driver can protect the IGBT in 3 different
short circuit scenario – SC I, Bridge-Shoot-Through, SC II
A fault signal is generated by the gate-driver which turns off the IGBT within
the SCSOA
Conclusion
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For Further Question
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