IS200GDDDG1ABA - Gate Driver and Dynamic Discharge Board

SPECIFICATIONS

Part No.: IS200GDDDG1ABA
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Size: 17.8 cm high x 33.02 cm wide
Temperature Operating: -30 to 65 o C
Product Type: Gate Driver and Dynamic Discharge Board
Availability: In Stock
Series: EX2000

Functional Description

IS200GDDDG1ABA is a gate driver and dynamic discharge board developed by GE. It is a part of EX2000 series. The primary function of the board is to establish interface isolation between the IGBTs and the primary processor firing circuits within the EX2000 PWM-based exciter. This isolation ensures seamless communication and control while preventing electrical interference.

Dynamic Discharge Circuit Control

The board assumes control over the dynamic discharge circuitry, a pivotal component managing discharge processes. It oversees the gating circuits responsible for the active IGBTs in both the A and B legs, regulating their activation and deactivation.

Instrumentation Provision

Beyond isolation and control, the board serves as a hub for instrumentation within the EX2000 PWM system. It processes crucial metrics, including output DC voltage, DC link voltage, shunt current (millivolt input), and heat sink thermistor data. These processed metrics are then transmitted to LDCC processors to be utilized by the regulators for optimized system performance and regulation.

Integration and Functionality

By consolidating isolation, control, and instrumentation functions, the board streamlines the operation of the EX2000 PWM-based exciter, enhancing its overall efficiency and control mechanisms. Its role in managing critical aspects of the system's performance makes it a fundamental component within the larger framework of the exciter's operation and regulation.

LED Indicators

• The LED labeled Bridge OK (DS100) illuminates to signify the absence of IGBT leg faults and the absence of overcurrent detected within the system.
• The LED denoted as IMOK (DS101) on the GDDD board lights up when there are no bridge faults detected, the unit is not in a reset state, power supply voltages meet the required levels, and no dynamic discharge faults are identified.
• An additional LED labeled DD AUX POWER AVAILABLE (DS102) indicates the availability of auxiliary power for the dynamic discharge circuit. This power is sourced from the DC link via the RDS connection.

Jumpers

• JP1 Jumper: JP1 jumper plays a critical role in configuring the input level of the DC output voltage for inputs APL-6 and BPL-5 on the GDDD board. Its settings must align precisely with the value specified in EE.612 (VDCMAX). This alignment ensures proper compatibility and functionality within the system.
• JP2 Jumper: The JP2 jumper serves to configure the input level of the DC link voltage for inputs CPL-12 and CPL-2 on the GDDD board. Similar to JP1, its settings must correspond accurately to the value outlined in EE.612 (VDCMAX) for seamless integration and operation.
• JP3 Jumper: JP3 jumper is responsible for configuring the input level of the DC dynamic discharge reference for inputs CPL-12 and CPLCOM on the GDDD board. Its configuration should correspond in line with the level specified in EE.612 (VDCMAX). For instance, if EE.612 equals 604, JP3 should be set to 500, and if EE.612 equals 360, JP3 should be set to 300. This alignment ensures proper referencing and functionality of the dynamic discharge circuitry within the system.

The WOC team is always available to help you with your EX2000 requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IS200GDDDG1ABA?
It is a gate driver and dynamic discharge board developed by GE under the EX2000 series.

What functionalities does the board control?
The board manages the dynamic discharge circuit and gating circuits for the active IGBTs in the A and B legs of the system.

What instrumentation does the board provide?
It processes and transmits metrics such as output DC voltage, DC link voltage, shunt current (millivolt input), and heat sink thermistor data to LDCC processors. These metrics are used by regulators for optimal system performance.

How does the board contribute to system optimization?
By controlling critical circuits, processing essential metrics, and providing isolation, the board enhances system efficiency, stability, and regulation within the EX2000 PWM-based exciter.

What is the significance of the board's role in system safety?
It's comprehensive control over circuits and metrics aids in fault prevention, accurate IGBT control, and ensures the reliability and safety of the EX2000 PWM-based exciter.