400V Microgrid Integration with Modular Galaxy 241 Hybrid Deployment for a Confidential Customer
Project Overview
To enable reliable microgrid operation, FFD POWER implemented a 400V microgrid BESS integration for an undisclosed site, delivering a 500 kW / 2,410 kWh modular microgrid energy storage system as a customer-confidential project.
The solution was deployed as 10 × Galaxy 241 Hybrid units, forming a hybrid inverter BESS for microgrid applications and fully integrated on a 400V LV microgrid energy storage bus. By combining modular battery storage with inverter-based control, the system ensures stable, resilient local power within a microgrid environment.
Under EMS-controlled microgrid BESS coordination, the system supports load continuity, renewable energy smoothing (when present), and operational flexibility, enabling the site to maintain voltage and frequency stability during grid disturbances or fully islanded operation.
Project Background
The customer developed a microgrid project at an undisclosed site where local power stability and continuity are critical. The project required a modular storage solution that could operate as part of a microgrid, supporting stable voltage and frequency on a low-voltage bus and providing flexible dispatch for load support and system balancing. The solution is deployed using multiple Galaxy 241 Hybrid units, enabling scalable capacity, simplified installation, and maintenance flexibility. The microgrid operates on a 400V connection voltage, suitable for integration with local LV distribution.
Project Challenge
- Microgrid Stability and Resilience: The system must support stable voltage and frequency and maintain local power continuity under disturbances.
- Low-Voltage 400V Integration: Multi-unit operation must be coordinated on a 400V busbar to ensure safe parallel operation and reliable dispatch.
- Modular Fleet Coordination: With multiple hybrid units, the EMS must balance SOC and power limits to deliver consistent microgrid performance.
FFD POWER Solution
FFD POWER delivered a 500 KW/2,410 KWH microgrid BESS deployed as 10× Galaxy 241 Hybrid, integrated on a 400 V LV bus. Under EMS coordination, the system manages charging/discharging to support local load continuity and stabilize the microgrid bus. The hybrid units enable flexible operation for both grid-connected support and islanded microgrid operation, with coordinated SOC balancing and power limiting across all units to maintain stable long-term performance.
System Specifications
- Site Type : Customer confidential microgrid
- BESS POWER : 500 KW
- BESS capacity : 2,410 KWH
- Product used : 10× Galaxy 241 Hybrid (50kW/241kWh Unit) + EMS
- Architecture: Modular Microgrid BESS on 400 V LV Bus with Multi-Unit Coordination
Operational Logic: Microgrid Bus Support and Multi-Unit Coordination
The EMS coordinates microgrid operation across multiple hybrid units to maintain stability and continuity:
- Bus Stabilization: The PCS controls real-time active/reactive power to stabilize microgrid voltage and frequency on the 400V bus during load or generation fluctuations.
- Continuity Support: During disturbances or islanded operation, the BESS supplies local loads to maintain continuous operation and reduce reliance on backup generation.
- Fleet SOC Balancing: The EMS enforces unit-level SOC boundaries and power limits to balance utilization across all hybrid units and maintain consistent performance.
