Description
1. Product Overview
Part Number: IS200DSPXH2DBD
Manufacturer: GE General Electric. It is the core DSP high-speed digital signal processing main board for GE Speedtronic Mark VI turbine control system and EX2100 generator excitation system. As the core computing unit of gas and steam turbine control systems, it is classified as a critical first-level spare part for power stations.
Compatible System: Exclusively adapted to GE Mark VI turbine control racks and EX2100/EX2100e static excitation control systems, compatible with simplex, dual redundant and TMR triple redundant architectures. It is inserted into standard VME rack slots and cooperates with power boards, I/O boards and communication boards to undertake core tasks such as analog signal operation, logic calculation, closed-loop regulation and fault judgment for the whole unit.
Product Definition: High-speed DSP digital signal processing core board equipped with industrial 32-bit high-speed digital signal processor, optimized for high-precision real-time control of turbine and excitation systems. It is responsible for full-station analog operation, speed regulation, excitation PID closed-loop control, signal filtering and noise reduction, fault logic judgment and data packaging upload, serving as the computing brain of the entire control system. Abnormal operation will directly cause unit regulation instability, parameter fluctuation, protection mal-operation and unit tripping.
2. Six Core Hardware Functional Units
2.1 High-Speed DSP Core Computing Unit
Equipped with industrial 32-bit floating-point DSP processor with nanosecond-level high-speed computing capability, optimized for real-time control algorithms of generator and turbine equipment. It supports parallel processing of complex closed-loop operations such as excitation regulation, speed control, load adjustment and phase correction, ensuring unit dynamic regulation accuracy and response speed, and adapting to full working conditions of unit start-stop, grid connection and variable load.
2.2 Multi-Channel Signal Acquisition & Filtering Unit
Connects to rack analog acquisition links to receive sensor signals such as voltage, current, temperature, speed, vibration and valve position. Adopts dual filtering mechanism of multi-stage hardware filtering and algorithm filtering to eliminate high-frequency electromagnetic interference and clutter noise on site, restore accurate original signals, and avoid sampling drift and value jump.
2.3 Excitation & Turbine Closed-Loop Control Unit
Built-in original solidified control algorithm supports adaptive PID closed-loop regulation of excitation current, voltage and reactive power, as well as precise regulation of gas/steam turbine speed, load and exhaust temperature. It automatically corrects regulation parameters according to grid load and unit working conditions to realize stable grid connection, smooth load increase/decrease and rapid fault response of the unit.
2.4 Bus Data Interaction & Storage Unit
Natively compatible with Mark VI backplane bus and EX2100 internal bus for high-speed data interaction with CPU, I/O and communication boards. On-board large-capacity non-volatile memory solidifies system control programs, fixed values and logic configurations, and real-timely stores SOE event records, fault data and operation logs without power-loss data loss.
2.5 Hardware Self-Test & Fault Diagnosis Unit
Automatically completes full self-test of core chips, storage modules, bus links and operation programs after power-on. It real-timely monitors operation abnormalities, communication interruptions, program errors and parameter overlimits during operation, latches fault codes, triggers system alarms and uploads information to the upper monitoring screen for accurate fault location.
2.6 Industrial Reinforced Environmental Adaptation Unit
The entire PCB is coated with moisture-proof, salt-fog and corrosion-resistant conformal coating. Core chips adopt wide-temperature industrial-grade materials with reinforced packaging. Fanless passive heat dissipation design adapts to long-term unit vibration, high temperature and humidity in power plant cabinets, supporting 24/7 uninterrupted stable operation.
3. Core Technical Specifications
3.1 Basic Electrical & Hardware Parameters
Item | Specification |
|---|---|
Model | IS200DSPXH2DBD DSP Digital Signal Processing Main Board |
Compatible System | GE Mark VI Turbine Control System, EX2100 Excitation System |
Core Processor | 32-bit Industrial Floating-Point High-Speed DSP Processor |
Input Working Voltage | 24VDC Rack Regulated Power Supply |
Output Signal Specification | 0~10VDC Standard Analog Control Output |
Typical Power Consumption | ≤12W Low Power Design |
Operation Accuracy | Closed-loop regulation error ≤0.1% |
Mounting Type | Standard VME Rack Single-Slot Plug-in Installation |
3.2 Communication & Operation Parameters
- Bus Protocol: Mark VI dedicated backplane bus, EX2100 high-speed internal interactive bus
- Communication Protocol: Modbus TCP/RTU, industrial real-time transmission protocol
- Operation Performance: Millisecond-level closed-loop regulation and fault response
- Data Storage: Solidified programs, fixed values, operation logs and SOE records, power-off permanent storage
- Self-Test Function: Power-on full self-test, real-time operation monitoring, automatic fault latching and code alarm
3.3 Environmental & Mechanical Parameters
- Operating Temperature: -40℃ ~ +85℃ industrial ultra-wide temperature grade
- Storage Temperature: -40℃ ~ +90℃
- Humidity: 5%~95%RH non-condensing, non-corrosive environment
- Ingress Protection: IP20 (indoor cabinet installation only)
4. Product Advantages
1. Dedicated DSP high-speed operation architecture is deeply optimized for generator excitation and turbine control algorithms, with fast operation speed and high accuracy, eliminating regulation lag, overshoot and parameter fluctuation.
2. Dual hardware & algorithm anti-interference filtering efficiently filters high-frequency electromagnetic interference from power plant equipment, avoiding regulation abnormality and protection mal-operation caused by signal distortion.
3. Full native system compatibility supports plug-and-play replacement without configuration modification or parameter resetting, realizing automatic networking and greatly improving maintenance efficiency.
4. Full-dimensional fault self-test and traceability accurately locates faults with queryable codes, reducing operation and maintenance troubleshooting difficulty and distinguishing hardware faults from external circuit faults rapidly.
5. Low-power long-term stable operation adopts fanless passive heat dissipation and three-proof reinforcement process, adapting to harsh power plant working conditions with ultra-low failure rate and low lifecycle maintenance cost.
6. Strong redundancy adaptability matches simplex/dual/TMR triple redundant control architectures, meeting high-reliability control requirements of large-scale power generation units.
5. Application Scenarios
1. Combined-Cycle Thermal Power Units: Core computing board for GE 6FA/9FA gas and steam turbine Mark VI systems, responsible for unit speed control, load regulation and temperature protection logic operation.
2. Large and Medium Hydropower Units: Matches EX2100 excitation system to realize closed-loop regulation of generator voltage and reactive power, adapting to fluctuating hydropower working conditions.
3. Metallurgical & Chemical Captive Power Plants: Applied to waste heat and gas power generation unit control systems to ensure continuous and stable power supply for industrial production.
4. Oil & Gas Pipeline Compressor Units: Core control unit for turbine cabinets of large compressors, adapting to outdoor explosion-proof and temperature-fluctuating working conditions.
5. Legacy System Technical Retrofit: In-situ replacement for aging DSP boards with operation abnormality, parameter jump and communication dropout to quickly restore system stability.
