ABB D1031SH45TS02 3BHB006457R0001 MV Converters
ABB D1031SH45TS02 + 3BHB006457R0001 4500V Press-Pack Freewheeling Diode Stack For Large Capacity GE EX2100 Excitation & MV Converters
Manufacturer: ABB Hitachi Energy Semiconductors Hungary
Dual Part Number: Diode Wafer:D1031SH45TS02 / Complete Water-Cooled Mount Assembly:3BHB006457R0001
Matching Power Device: 5SHY3545L0010 4500V Snubberless IGCT + 3BHB013088R0001 Fiber Optic GDU
Compatible System: Large Capacity GE EX2100 Static Excitation Cabinet, ABB ACS6000 MV Drives, HVDC VSC Converters
Type: 4500V 100mm StakPak Press-Pack Soft Fast Recovery Freewheeling Diode Complete Water-Cooled Stack Assembly
Core Function: 4.5kV IGCT reverse inductive current absorption, three-phase rectifier power conversion, overvoltage suppression, modular parallel stack design, long-term 24/7 power plant continuous operation
1. Product Overview
D1031SH45TS02 is ABB 4500V 100mm diameter StakPak soft fast recovery freewheeling press-pack diode, matched with dedicated water cooling mounting frame 3BHB006457R0001 as a full power stack unit. It is exclusively paired with 4500V snubberless IGCT 5SHY3545L0010 to form full bridge arms for high-power medium voltage converters.
Hermetic ceramic press-pack housing eliminates internal solder layers for outstanding thermal cycling fatigue resistance; the device fails in short-circuit mode to prevent generator loss-of-field runaway risks in large power plant excitation systems. Soft recovery characteristic drastically reduces switching reverse recovery losses, lowering cabinet heat generation under full-load continuous operation.
Mainly deployed in large unit GE EX2100 static excitation converters for 300MW+ gas/steam turbine generators, also widely used in ABB ACS6000 medium voltage rolling mill & mine four-quadrant drives, wind farm high-power grid-connected VSC converters and HVDC flexible transmission valves. Double-sided water cooling base supports stable 1120A rated continuous output. ABB discontinued original new production, refurbished and surplus stacks are mainstream spare parts for power plant maintenance and retrofit.
2. Full Electrical Specifications
• Device Type: Soft Fast Recovery Press-Pack Freewheeling Diode
• Repetitive Reverse Voltage VRRM: 4500 V
• Average Forward Current IFAV @85℃: 1120 A
• Non-repetitive Surge Current IFSM (10ms): 23 kA
• Forward Voltage Drop VF @1120A,25℃: ~4.2 V
• Recovery Characteristic: Low Qrr soft recovery, optimized for 0~2kHz switching frequency
• Cooling Method: Double-sided forced water cooling integrated in 3BHB006457R0001 frame
• Operating Junction Temperature Tj: -40℃ ~ +125℃
• Wafer Diameter: 100 mm
• Single Diode Chip Weight: 750 g
• Total Assembly Weight: ~2.1 kg
• Packaging: Hermetic ceramic StakPak press-pack, short-circuit fail-safe failure mode
• Certifications: IEC 62477, UL power generation industrial power semiconductor standard
3. On-stack Hardware Layout
1. Core power diode wafer: D1031SH45TS02 100mm circular StakPak press-pack silicon chip
2. Complete water cooling assembly: 3BHB006457R0001 (water channel base, compression clamp, nickel-plated laminated copper busbars, insulation partitions, positioning latches)
3. High-current copper busbar stack for DC bridge circuit connection
4. Standard positioning structure for parallel stacking with 4500V IGCT power stacks
5. Hermetic ceramic sealed housing for long-term high voltage insulation and moisture corrosion resistance
4. System Matching Hardware Chain (Large Unit EX2100 Generator Excitation)
• IS215UCVEH2AF / DS200SDCCG5AHD: Turbine & Excitation Main Control CPU Board
• Fiber optic cable: Transmit PWM excitation gating pulses to IGCT GDU board
• 3BHB013088R0001 GDU Gate Drive Unit: IGCT pulse amplification & multi-channel fault detection
• 5SHY3545L0010 4500V IGCT main power switching device
• D1031SH45TS02 + 3BHB006457R0001 freewheeling diode stack: reverse inductive current absorption & three-phase rectifier bridge arm
• Generator rotor excitation winding: converter DC output load
• Full signal chain: Main CPU AVR PWM command → Fiber → GDU → IGCT switch; inductive reverse current diverted through D1031SH45TS02 diode to suppress rotor overvoltage, realize four-quadrant generator excitation regulation & fast de-excitation during unit trip
• Platform Separation: Exclusive ABB 4500V medium voltage power semiconductor stack, incompatible with GE low voltage I/O boards, Siemens SPPA-T3000, Honeywell Ovation DCS hardware
5. Typical Industrial Application Scenarios
• Large capacity 300MW+ gas/steam turbine GE EX2100 excitation cabinet: Freewheeling & rectifier diode for four-quadrant generator AVR voltage & reactive power closed-loop control
• ABB ACS6000 medium voltage steel rolling mill & mine drives: Rectifier bridge arm diode for motor four-quadrant speed regulation and brake energy recycling
• Wind farm high-power grid-connected VSC converter: Bidirectional energy conversion freewheeling protection for 4.5kV power stacks
• HVDC flexible transmission converter valve: Main rectifier power conversion unit for high voltage DC energy transmission
ABB Hitachi Energy © D1031SH45TS02 + 3BHB006457R0001 4500V Press-Pack Freewheeling Diode Stack For Large Power Plant Excitation & Medium Voltage Converters