1. Energy storage system composition
- bidirectional energy storage converter
- Bidirectional ACDC Energy Storage Converter
- Bidirectional DCDC energy storage converter (optional)
- Static toggle switch (optional)
- Isolation transformer (optional)
- Battery system, including BMS, wiring harness, etc.
- Energy management system EMS
- Air Conditioning and Fire Protection Systems
- container or outdoor cabinet
3. Features of energy storage system
Safe and reliable
- High-quality lithium iron phosphate cells and modules
- The battery module adopts PC bracket and steel structure design
- Damping pad design for battery installation, improving the shock resistance of the system
- IP54 design for safe and reliable operation in harsh environments
- PCS is connected in series with the battery pack to prevent circulation and improve system reliability and maintainability
- BMS and AC and DC multi-layer protection, the system is more secure
- Fault prediction, identification and rapid location
Efficient and convenient
- PCS and battery system adopt modular design, which is convenient for installation, maintenance and capacity expansion
- Photovoltaic, oil-generator direct access, multi-energy intelligent management and control
- Integrated equipment, can be fixed, vehicle-mounted, easy to move
- Multiple systems can be connected in parallel
- Efficient, digital and intelligent EMS system architecture design
- 0.5C charge and discharge rate
cost optimization
- One machine with multiple functions: off-grid uninterrupted power supply, dynamic capacity expansion, peak-shaving and valley-filling optimization of power consumption mode
- Reactive power compensation, harmonic suppression, improvement of three-phase unbalance, realization of multi-energy complementarity, scientific configuration
- The energy storage system is prefabricated in the factory, reducing the cost of on-site installation
- Small size, light weight, saving floor space
- Long life, low failure rate, low operation and maintenance cost
- Maximize the use of green energy and save electricity bills
4. 技术指标（可定制）
| Model | BESS200KWH-100KW |
| Efficiency | |
| Max. efficiency | 98.2% |
| Input(PV，Optional) | |
| Max. Input Power(kW) | 100 |
| Max. Input voltage(V) | 800 |
| Voltage range(V) | 200～700 |
| Start-up voltage(V) | 200 |
| Rated voltage(V) | 500 |
| Max. Current each MPPT(A) | 100 |
| Max. Short current(A) | 120 |
| MPPT number | 2 |
| Max. String number | 1 |
| Battery pack | |
| Cell type | LFP 3.2V/280Ah |
| Combination mode | 1P16S |
| Rated voltage(V) | 51.2 |
| Battery capacity(kWh) | 14.34 |
| Charge-discharge capacity | ≤1C |
| Battery string | |
| Combination mode | 14S |
| Rated voltage(V) | 716.8 |
| Voltage range(V) | 638.4～806.4 |
| Battery capacity(kWh) | 200.7 |
| Charge-discharge capacity | ≤0.5C |
| Output(On-grid) | |
| AC output topology | 3W+N/3W |
| Output rating(kW) | 100 |
| Max. Apparent power(kVA) | 110 |
| Rated output voltage(V) | 230/400 |
| Rated power frequency(Hz) | 50/60 |
| Max. Current output(A) | 159 |
| PF | 1.0lagging-1.0leading |
| THDI | <3% |
| Isolation mode | Transformer(optional) |
| Output(Off-grid) | |
| Output rating(kW) | 100 |
| Max. Apparent power(kVA) | 110 |
| Rated output voltage(V) | 230/400 |
| Frequency | 50/60 |
| Max. Current output | 159 |
| PF | 1.0lagging-1.0leading |
| General data | |
| Protection | Anti-island protection, DC reverse connection protection, insulation monitoring, DC surge protection, AC surge protection, AC over current protection，etc. |
| Operation Temperature(℃) | -25～+55 |
| Relative humidity | 0%RH～95%RH |
| Max. Altitude(m) | 4000(2000 derating) |
| Cooling mode | Air cooling |
| Display | 7/10 inch screen |
| Communication | CAN/RS485 |
| Weight(kg) | 1400 |
| Dimensions W*D*H( mm) | 1900*1300*2385 |
| IP/FFJB class | IP54/C5 |
5. Comparison of string energy storage system solution and centralized energy storage system solution
String energy storage system: each cluster of batteries is independently connected to the DC side of the bidirectional AC/DC converter
Centralized energy storage system: multiple clusters of batteries connected in parallel to the DC side of the bidirectional AC/DC converter
Features of string energy storage system:
- Each cluster of batteries is independent, not affected by inconsistent internal resistance, and the charging and discharging current of each cluster of batteries does not affect each other, eliminating circulating current
- The impact of battery short board is small, one battery only affects one battery cluster
- Simple switching operation strategy after failure
- The battery decays slowly, and the life span can be extended by a maximum of one year
- High security level, simple design
Features of centralized energy storage system
- The internal resistance of each cluster of batteries is different, and the charge and discharge current of each cluster of batteries is different, and the circulation cannot be eliminated
- The short board effect of the battery is obvious, and one battery affects one PCS system
- Complicated switching strategies after faults
- Fast battery decay
- security level down
6. Energy storage system function
Industrial and commercial energy storage system, micro grid, hybrid micro grid
- Shaving peaks and filling valleys
- Dynamic expansion
- demand control
- backup power
- black boot
- Power Quality
7. List of Application Cases
