Sichuan Roncy Technology Co., Ltd.
Professional DC Mini UPS&BMS Solution Provider and Manufacturer
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ESS PCS-630/500 Power Conversion System Easy To Expand With Intelligent Air Cooling
A Power Conversion System (PCS) is the central power electronics component designed for efficient energy form conversion and control.
The ESS PCS-630/500 is a high-performance Power Conversion System (PCS) designed for commercial & industrial energy storage, grid-side frequency regulation, and renewable energy integration. Featuring a modular design with 630kW/500kW power ratings, it delivers efficient energy conversion, intelligent dispatch, and multi-layer protection, serving as a core component of energy storage systems.
| Parameter | PCS-630 | PCS-500 |
|---|---|---|
| Rated Power | 630kW | 500kW |
| Max. DC Input | 693kW | 550kW |
| DC Voltage Range | 550V–1000V | 500V–900V |
| AC Voltage | 380V (3-phase 3-wire) | 380V (3-phase 3-wire) |
| Efficiency | ≥98% (CEC weighted) | ≥97.5% (CEC weighted) |
| Charge/Discharge Transition | <30ms | <30ms |
| THD | <3% (rated load) | <3% (rated load) |
| Protection Rating | IP65 (outdoor) | IP65 (outdoor) |
Core Features:
✅ Wide Voltage Compatibility: Supports DC 550V–1000V input for diverse battery systems.
✅ Ultra-Fast Response: Seamless mode switching in <30ms, ideal for grid frequency regulation.
✅ Smart Grid Support: Integrated VSG (Virtual Synchronous Generator) technology for peak shaving, frequency control, and black start.
✅ High Reliability: Utilizes SiC (Silicon Carbide) devices to minimize switching losses and maximize efficiency.
① Commercial & Industrial Energy Storage
Peak Load Shaving: Reduces electricity costs via time-of-use tariffs.
Demand Management: Optimizes transformer capacity and power load.
② Grid-Side Applications
Frequency Regulation (AGC): Provides second-level power response to grid commands.
Renewable Smoothing: Mitigates fluctuations in PV/wind generation, minimizing curtailment.
③ Microgrid & Off-Grid Systems
Island Mode Operation: Ensures uninterrupted power supply during grid outages.
Parallel Redundancy: Supports N+X configuration for enhanced system availability.
(1)Modular Architecture
N+1 redundancy: Single-module failure does not disrupt system operation.
Scalable Power: Multiple units can be paralleled for MW-scale deployments.
(2)Intelligent Energy Management
Built-in EMS (Energy Management System) for remote monitoring, fault diagnosis, and efficiency optimization.
Multiple operation modes: PQ (Constant Power), VF (Constant Voltage), and VSG (Virtual Synchronous Generator).
(3)Robust Environmental Adaptability
IP65-rated enclosure for harsh outdoor conditions (humidity, salt spray).
Wide temperature range (-30°C~60°C) and high-altitude operation (≤5000m).
| Comparison | ESS PCS-630/500 | Competitors (e.g., Sungrow) |
|---|---|---|
| Efficiency | ≥98% | 97%~98% |
| Response Time | <30ms | 50~100ms |
| Modularity | N+1 Redundancy | Limited models |
| Advanced Features | Integrated VSG & Black Start | Requires external controllers |
Competitive Edge:
Superior dynamic response (critical for high-precision grid services).
Higher integration (reduces peripheral costs).
AI-Powered Predictive Control: Optimizes charge/discharge strategies with load forecasting.
Hybrid Hydrogen Integration: Compatible with hydrogen storage for zero-carbon applications.