UNITROL 6000 X-power series UAD149A1501 3BHE014135R1501 丨ABB

UNITROL® 6000 PSS Standalone Enhance your excitation system to comply with Grid Code regulations at minimal cost

 • Extend the life cycle of your current excitation system by adding functionality, fast and simple 

 • Advanced solutions and services to comply with local grid codes regulations 

 • Reliable product with highest availability 

 • Worldwide network of UNITROL® specialists at your service

The challenge Grid codes are constantly changing due to the new and unprecedented network developments. Therefore, installed plant equipment requires to be upgraded/replaced to comply with the network regulations which leads to increased extended outages and costs. PSS SA is a cost-effective solution to be compliant immediately.

Why Power System Stabilizer Standalone (PSS SA) Power system stabilizers (PSS) are commonly used to damp various types of oscillation modes, as from interarea oscillations in large transmission networks to local oscillation modes of synchronous generating units. This is done by adding a stabilizing signal to the voltage regulator of the existing excitation systems.

The comprehensive and flexible solution: ABB’s UNITROL® 6000 Power System Stabilizer Standalone

Extend the life cycle of your current excitation system by adding functionality, fast and simple 

 • For any excitation brand – Indirect or Static excitation systems 

 • Extending the life cycle of your current system and enabling compliance with today’s complex grid code regulations 

 • Full Power System Stabilizer (PSS) functionalities according latest IEEE421.5 standards (PSS 2A/2B/2C or 4B/4C)

Advanced solutions and services to comply with the grid codes regulations 

 • Build-in signal injections and high-end recording features to support - System identification (of Generator and Grid), even when no dynamic Model data is available from the OEMs- Fast and efficient capturing of network disturbances, supporting post-mortem analysis of large-scale network events and prove related unit compliance (e.g. NERC MOD-026-1)- Post-mortem analysis of failure on the complete gen-set. 

 • Adaptive PSS (APSS), with a patented grid observer, which optimizes the PSS settings based on actual network and operation conditions. 

 • Advanced Speed measurement algorithms based on dynamic generator models to improve PSS performance during interarea and local modes 

 • Dedicated RoCoF (Rate of Change of Frequency) PSS Blocking function to block PSS during large scale grid frequency changes, to avoid malfunctions. 

 • Designated filter networks to avoid torsional interactions, and risks of mechanical damages

Reliable product with highest availability 

 • Based on UNITROL® 6000 X-power control devices, with proven track records 

 • Options for redundant configurations 

 • Extended IOs, as DCS interface and special configurations (e.g. for Pump storage with PSS operation in generating and pump mode) 

 • Dedicated touch screen HMI Interface to have control and monitoring at your fingertips

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