ABB PPD517A3011 3BHE041576R3011 Excitation Central Controller – Functional Overview
1. Core Control Functions
Master regulator for synchronous generator excitation systems, executing control algorithms with <1ms cycle times for precise voltage/current regulation
Implements dual-channel redundant control (hot standby) with automatic failover to ensure continuous operation
2. Advanced Grid Support Features
Grid Code Compliance: Supports IEEE C50.13, IEC 60034-3, and regional grid standards for voltage/frequency response
Customizable PSS (Power System Stabilizer) with multi-band damping algorithms (0.1-2.5Hz range)
3. System Architecture
Modular design with FPGA-based processing for deterministic real-time control
Fiber-optic communication (up to 100Mbps) between controller and I/O modules for noise immunity
4. Protection & Monitoring
Integrated protection suite:
Over/under excitation (ANSI 24/40)
Loss-of-field (ANSI 40)
V/Hz protection with dual-slope characteristic
Condition monitoring:
Rotor winding temperature estimation (±3°C accuracy)
Real-time harmonic distortion analysis
5. Communication Interfaces
IEC 61850-8-1 (GOOSE/SV) for substation automation
OPC UA for vertical integration with SCADA/MES systems
Redundant PRP/HSR networks per IEC 62439-3
6. Application Scope
Large steam/hydro turbines (up to 1500MW units)
Industrial power plants with strict power quality requirements
Black start-capable excitation systems
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