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3.34MW Grid-Forming ESS PCS 3.34MW Grid-Forming ESS PCS

3.34MW Grid-Forming ESS PCS

Product Advantages Product Advantages
High Energy Efficiency

· Three-level topology, maximum conversion efficiency of 99%

· Intelligent air cooling control system, low losses, reduces system osses by 5%

· Wide DC voltage range (1000Vdc~1500Vdc) without derating

· True grid-forming capability, supports 300% overloading for 10s

· Advanced grid-forming algorithm based on "PSS + VirtualCircuit" with excellent dynamic performance

High Reliability

· IP65 protection and C5 corrosion resistance, suitable for various application scenarios

· DC-side short-circuit current breaking capacity of 250KA within milliseconds

· Supports detection and protection for multiple system faults and temperature anomalies

· System coordination enables multiple fault protection mechanisms

Flexible System Solutions

· Modular single-unit design supporting multiple parallel units

· Compatible with various battery system configurations for long-duration charging and discharging

· Compact size, small footprint, easy to transport, hoist, and adapt to diverse scenarios

· Integrated design ensures simple, convenient, and efficient maintenance

Grid-Friendly

· Supports PQ, VF, SVG, VSG functions and high/low voltage ride-through

· Rapid dispatch capability, off-grid operation, and "black start" functionality

· Compliant with IEC 61850 protocol and supports fast power response

Technical Specifications Technical Specifications
Model EAPCS3344KHV
DC-Side
DC Operating Voltage Range 1000-1500Vdc
Rated Operating Voltage 1250Vdc
Maximum DC Current 3416A
Number of Input Channels 4
AC Side (Grid-Connected)
Rated Power 3344kVA @45°C
Maximum Apparent Power 10032kVA (>10s)
Rated AC Current 2800A@45°C
Rated Grid Voltage 690Vac
AC Line Configuration 3P+PE
Grid Voltage Range -15%~ +10%
Permissible Grid Frequency 45Hz~55Hz (configurable)
THD <3%
Rated Power Factor >99% (rated power)
AC Side (Off-Grid)
Rated AC Voltage 690Vac
AC Voltage Range -15%~+10%
AC Voltage Harmonics < 3% (at Rated Balanced Resistive Load)
Rated Grid Frequency/Grid Frequency Range 50Hz/45~55 Hz
Reactive Power Adjustable Range -105% ~ +105%
Safety Functions
Protection Surge protection, Grid short-circuit/ground fault, Insulation impedance, Overtemperature faultprotection, Low voltage ride-through (LVRT), High voltage ride-through (HVRT), Anti-islandingprotection, AC overcurrent/short-circuit protection, DC overcurrent/short-circuit protection,DC reverse polarity protection, Power module fault protection (IGBT)
System Parameters
Maximum Efficiency 99%
Protection/Anti-Corrosion Grade IP65/C3 (C5 optional)
Noise <80dB
Cooling Method Intelligent forced air cooling
Weight < 1200kg
Dimensions (WxHxD) 850mmx2447mmx2086mm
Operating Temperature  -35°C~60°C
RangeStorage Temperature Range -40°C~70°C
Operating Relative Humidity 0~95%
Maximum Altitude at Installation Site 5000m (derated above 4000m)
Display and Communication
External Communication Interface (Monitoring System) RS485 / Ethernet / CAN
External Communication Protocol (Monitoring System) Modbus-TCP / IEC61850 / IEC104
HMI LCD Screen / Bluetooth APP
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