
Advanced automation & control systems
Digital speed governors and Unit control architectures engineered for instant and stable control, offering grid support ancillary services and autonomous plant operation.
As intermittent renewables destabilize modern electrical grids, hydropower is required to act with absolute precision. Litostroj Group engineers state-of-the-art digital speed governor, that offer maximal grid support.
We design, program and integrate custom speed governors with Complete unit control architectures, that guarantee safe, optimized Water-to-Wire performance under most volatile network conditions.
Operational parameters
Powerhouse control architectures
Digital speed governors
The brain of the hydro-mechanical unit.
Our governors feature highly sophisticated, redundant PLC-based architectures, engineered for precise control of turbines and pump-turbines across all operating regimes. They deliver stable, accurate performance—even during load rejections, transitions, and emergency trips—ensuring maximum HPP safety. Proven customer satisfaction on Litostroj speed governing projects since 2000. Precision. Safety. Proven performance.

Smart integration
When paired with electrical batteries or shunt resistors, the Litostroj governors actively balance grid load and generation—enhancing frequency regulation on isolated grids, enabling fast frequency responses for interconnected networks, or guarding Kaplan runners in FCR regulation. Flexible. Responsive. Grid-ready.

Unit control system
Our unit controller receives start/stop commands and references from SCADA, intelligently initializing all subsystems for flawless operation. It gathers real-time data, performs monitoring, alarming, and diagnostics, and transmits critical information back to SCADA—keeping you fully informed.
We design complete unit control infrastructure, integrating all main and auxiliary systems into a single digital interface. Optimized automatic sequences ensure fast startup and smooth mode transitions, minimizing downtime and maximizing efficiency. Centralized. Intelligent. Reliable.

Ready to modernize your powerhouse automation?
From digital speed governors to unit controllers.
