FREQUENCY RESPONSE

Frequency Response as Grid Balancing service
Automated operation
Primary or Secondary
High availability and accuracy
Response time of < 200 ms

SOC MANAGEMENT FOR BATTERY LIFE MAXIMIZATION

Automatic State of Charge management in a multi-MW Battery plant

FREQUENCY RESPONSE

Auto charge or discharge service

• Capability to export power at a specific level for a specific period or until the exported energy reaches a limit.
• Limited by Time (“run for 0.5 hours) or Energy (“run till charging used x MWh)

SOC Setpoint

• Achieve a specific setpoint
• Achieve a specific setpoint at a specific hour

Charge/discharge through a setpoint

Storage Control loops

Feed forward control loop

• To compensate for standard losses

Availability based

• To compensate for unavailable inverters
  Closed loop control schemes

Two separate PID loops, one for Active Power (P) and one for Reactive Power (Q)

• Less than 1 second loop