Energy storage controller system(ESCS)
ESS.pdf
Operation principle:
Energy storage in power system including solar panels,inverter (for AC and DC conversion),and provide backup power for the main electrical backup lines.Household electricity demand different choice of different components.
Feature:
Parameter:
| Battery cell | |||
| Rated capacity | 50kw | 75kw | 100kw |
| Battery type | LiFePO4 battery | ||
| Model of cell | 3.2V 70A Square aluminum shell | ||
| Battery group array | 16S16P | 16S22P | 16S30P |
| Voltage range of battery group | 44V cycles at 80%DOD | ||
| BMS Protection | Short Circuit Protection,Over Charge Protection,Over Discharge Protection,Reverse Polarity Protection,Cell Over Voltage,Cell Under Voltage and Temperature,Low Voltage Cut Off (automatic Reconnect) | ||
| Charge | |||
| Battery charge temperature | 0~50℃ | ||
| Maximum charge voltage | 59±0.5V | ||
| Rated charge voltage | 584±0.4V | ||
| Nominal charge current | 200A | 300A | 380A |
| Discharge | |||
| Battery working temperature | －20℃～60℃ | ||
| Allowable maximum discharge current | 250A 1min | 250A 1min | 250A 1min |
| Rated allowable maximum discharge current | 200A | ||
| Discharge termination voltage | 40 | ||
| Self Discharge Rate | Less than 3%per month (nominal temperature) | ||
| Inverter | |||
| Type | Stand-alone Inverter (Off Grid Inverter)Single phase output transformer | ||
| Rated power | AC output power continuously 5.0KW/7.5KW/10KW at electrical load type :Unity power factory (pf=1) | ||
| Nominal Input Voltage | 48VDC | ||
| Output voltage | 110V-220VAC | ||
| Output voltage regulation | ±5% at steady state load | ||
| Total harmonic distortion(THDv) | Less than 4% when the electrical load is 0.8 lagging power factor | ||
| Maximum surge power | 200% of nominal power | ||
| Maximum running current | 75 | ||
| Overload ability(10min) | 110% | ||
| AC input frequency | 50Hz/60Hz(automatic tracking) | ||
| Output efficiency | ≥90% | ||
| Wave form | Pure sine wave form | ||
| Protection | Over load,Short Circuit,Over Input Voltage,DC Reverse Polarity,Battery Low Voltage Cut Off(automatic reconnect) | ||
| Communication | RS232/RS485 | ||
| Solar Charge Controller | |||
| DC start voltage(VDC) | 70V | 70V | 70V |
| Minimum DC start voltage(VDC) | 70V | 70V | 70V |
| Maximum DC voltage(VDC) | 145V | 145V | 145V |
| Max PV input power at STC (stardard Test Condition) | 5KW | 7.5KW | 10KW |
| Output voltage charger to battery | 48VDC | 48VDC | 48VDC |
| MPPT charger at STC | 2 MPPT 7.68KW | 3MPPT14.4KW | 4MPPT19.2KW |
| Charge and Discharge controller as SOC (Stage of Charge) | |||
| Overcharge Protection,Reverse Polarity Protection,Anti Reverse Diode Protection | |||
| Loading | |||
| Loading power | Backup time 10 hours with loading 5kw | Backup time 10hours with loading 7.5kw | Backup time 10 hours with loading 10kw |
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