Energy Management System
EMS for BESS & Hybrid Power Plants
Energy Management System that schedules and dispatches battery storage and hybrid power plants for the best economic result within grid and operating constraints.
The ATS Energy Management System works on two layers. Optimal Scheduling runs on a 24-hour horizon and uses operator, system operator and market operator setpoints, electricity prices or time-of-use tariffs and renewable forecasts to set the optimal charge and discharge schedule for the BESS. Its objective is to minimise total operating cost while keeping system reliability and reserve margins.
Real-time Dispatch runs every second on real-time measurements. It allocates demand among committed units within technical and operational constraints and re-optimises dynamically when actual conditions move away from the forecast
Features
- Two-layer control strategy: 24-hour optimal scheduling and real-time dispatch every second
- Multi-objective optimisation: time-of-use and price arbitrage, maximum renewable yield, ancillary services
- Mixed-integer linear programming with branch-and-bound solving method
- Considers grid code requirements, equipment specifications, device availability and real-time operating data
- Inputs from AI-based renewable generation forecasts, PPA and market information, and dispatch centre setpoints
- Together with the Master PPC, issues PV generation setpoints, BESS charge/discharge setpoints and reactive power setpoints to STATCOM/SVG
Functions
- Zero export and zero import control
- Energy shifting: stores surplus or curtailed renewable energy and discharges it when generation is insufficient, with operator-defined charge and discharge limits
- Time-of-use and price arbitrage control: charges in low-tariff periods and discharges in high-tariff periods
- Peak-shaving control: charges off-peak and discharges at peak demand to reduce demand charges
- Rule-based scheduling: peak-shaving, time-of-use/energy shifting, fixed schedule, manual
- Optimal generation dispatch scheduling to maximise renewable production and energy performance
Our services
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