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ABB AC 800PEC The high-performance control system
ABB AC 800PEC The high-performance control system
DESCRIPTION
High-performance applications with extremely fast control algorithms – cycle times that range from 100 μs (microseconds) for fast control loops to seconds for long-term operational transients – require specialized control devices.That is why we have designed the AC 800PEC, extending the capabilities of ABB’s well-known automation technology to handle the high-speed algorithms of processes such as power electronic applications.
The AC 800PEC has a unique combination of features for demanding applications:
• Short cycle times, down to 100 μs
• High processing power
• Fast communication and I/O via optical links
• Programming tools:
- System engineering with IEC61131-3 languages using ABB’s Control Builder, both Compact and Professional versions available
- Product and control development using MATLAB®/Simulink® for model-based design, easily bridging the gap from simulation to implementation
• Full integration into ABB Ability™ System 800xA
• Innovative and flexible use of FPGAs to include protocols and application functionality in the devices without creating additional processor load
• Optical communication
• Industrial grade hardware with no moving parts
• Long life cycle, easy upgrading
• Robust reliance file system, insusceptible post power loss
Built to control power in Process Industries
ABB has global expertise and technical know-how in processes for industrial, marine and other applications. As a result, the AC 800PEC is a key controller for ABB’s industrial applications, and also for third-party products and systems. The AC 800PEC is an efficient and flexible controller family. The benefits of short cycle times, fast (input/output) I/O, high-processing power and advanced control using MATLAB®/Simulink®:
• Increases process quality and output
• Saves development and engineering costs
• Reduces the energy consumption of your products
• Shortens time-to-market for your development project
• Saves headcount and resources in engineering and software development
• Enhances Return on Assets (ROA)
• Hardware backup trip integrated with fast COMBI I/O
Powerful hardware for efficient, high-speed processing
The AC 800PEC combines the floating-point computing performance of the CPU with the flexibility and high-speed capability of a FPGA.
The system is separated into three performance levels covering different cycle times. Control tasks are allocated depending on their speed requirements:
• Very fast tasks down to 25 ns (nanoseconds for FPGA tasks)
• Fast tasks down to 100 μs (microseconds for Matlab/Simulink tasks)
• Slow tasks down to 1 ms (miliseconds for control tasks)
Aluminium applications
• AC 800PEC Unit controller ↔ AC 800PEC Master controller communication via PEC - PEC fiber optical link (100 μs)
• Units can be controlled independent from master
• Allows emergency operation (full smooth current control, in emergency mode, without AC 800PEC, available only in combination with DCS800 premagnetization)
• Predictive maintenance features can be included
• Open circuit-, over current-, under voltage-, over voltage protection packages included in software - A newly developed OPC (open circuit protection) stand-alone PLC (programmable logic controller), working in combination with the AC 800PEC Master controller functions or as standalone protection, in case of the master panel maintenance
• Controlled shutdown in an event, not needing an immediate trip → less disturbance for your processes
• Potline load swing detection and load shedding function integrated in application software
• On Load Tap Changer fast tapping function in order to prevent DC current overload during disturbances
• A special potline-to-earth resistance measurement system based on an AC 800PEC family available (PERMS)
• Maximum power regulation - To prevent over-shooting of power consumption and to support your power generators
• Maximum DC voltage regulation for stabilizing your process
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