Energy storage controller system(ESCS)
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.
ESS.pdf
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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