PS-ESS Series
Liquid Cooling · Grid-Tied/Off-Grid · Smart Energy Management

System Architecture

ALL-IN-ONE integration: battery PACK (with BMS), PCS, EMS, liquid cooling, fire suppression (PACK-level + cabinet-level perfluorohexanone), and STS are all housed in a single outdoor cabinet. Standardized delivery — plug & play. Supports grid-tied, off-grid, and seamless STS transition (< 20 ms). Designed for 0.4 kV low-voltage distribution grids, C&I energy storage, microgrids, and emergency backup power.

Application Positioning

Widely used in LV distribution grid heavy-load management, PV integration with reverse-power prevention, three-phase imbalance correction, emergency backup (UPS function), peak shaving & valley filling, and demand-side management. Also ideal for C&I parks, microgrids (islands, remote areas), and virtual power plants (VPP) for grid frequency regulation and demand response.

🛡 ALL-IN-ONE Integration

• ▸ Saves 70% installation time with standardized delivery
• ▸ Plug & play, drastically reduces deployment costs
• ▸ Compact footprint (≤1.3 m²), saves valuable land

⚡ High Performance

• ▸ System efficiency ≥88%, PCS ≥98.5%
• ▸ STS seamless transition < 20 ms (UPS function)
• ▸ Liquid cooling keeps cell ΔT ≤5°C, 6000 cycles

🤖 Smart Management

• ▸ 24/7 intelligent monitoring with 4G IoT remote access
• ▸ BMS + EMS dual-layer optimization for charge/discharge
• ▸ Cloud platform: remote diagnostics, fault alerts, OTA

⚡ LV Distribution Grid Heavy-Load Management

When transformer load exceeds 85%, the system automatically discharges to provide virtual capacity expansion, delaying costly grid upgrades. Perfect for residential and commercial distribution networks.

☀️ PV Integration & Reverse-Power Prevention

Charge during daytime PV surplus, discharge during evening peak. Zero reverse power export, maximizing distributed PV utilization while complying with grid codes.

⚠️ Three-Phase Imbalance Correction

Per-phase power compensation stabilizes phase voltages, reduces line losses, and extends transformer service life. Critical for LV grids with high single-phase loads.

⚡ Emergency Backup / UPS

Seamless transition to off-grid mode in ＜20 ms upon grid loss, providing uninterrupted power for critical loads — hospitals, schools, communication base stations.

📈 Peak Shaving & Valley Filling + Demand Management

Capture price arbitrage between peak and off-peak tariffs while automatically monitoring demand charges. Dual cost reduction — ideal for C&I users participating in VPP programs.

📋 Routine Maintenance

1. Check overall system operating status (BMS/EMS/PCS communication, alarms)
2. Inspect liquid cooling system: coolant level, pump operation, fan status
3. Verify fire suppression system status and pressure indicators
4. Inspect AC/DC terminals for tightness, cables for integrity
5. Confirm monitoring panel: all units normal, no faults or alarms
6. Inspect weatherproofing, dustproofing, and anti-corrosion structural integrity
7. Battery SOH (State of Health) inspection via BMS data
8. Clean ventilation filters and heat exchangers
9. Record ambient temperature, humidity, and system operating parameters

🔧 Component Replacement

1. Identify faulty component (PCS module, fan, etc.) via monitoring panel
2. Confirm replacement part is intact and compatible
3. If replacing a power module, shut down the corresponding branch circuit
4. Open the cabinet door; locate the faulty component
5. Disconnect electrical connections; remove fixing screws
6. Remove the faulty component (caution: high internal temperature or residual voltage)
7. Install the new component; secure fixing screws
8. Reconnect electrical connections
9. Close the cabinet door
10. Restore power; verify monitoring panel recognizes the new component
11. Perform functional test to confirm normal operation

About IMAXPWR

ImaxPWR (Imax Power Technology Co., Ltd.) is a national high-tech enterprise specializing in new energy. As an original equipment manufacturer, we provide integrated energy storage products and system solutions, covering bidirectional PCS, DC/DC, MPPT, hybrid inverters, AC integrated cabinets, and microgrid systems for islands, mines, oilfields, and regions across Asia, Africa, Latin America, Europe, and Australia. We are a national high-tech enterprise integrating R&D, production, and sales, with extensive experience in overseas wind-solar-diesel-storage hybrid microgrid projects. Driven by technology R&D and quality control, we support grid, microgrid, and charging station scenarios in their low-carbon transition, offering customized, reliable, and safe energy system solutions worldwide.