Energy Management System EMS

This energy management system controls and monitors the battery, power section, climate control and fire suppression of a storage installation. Cell voltage is measured to ±5 mV, cell temperature to ±2 °C.

On request

The price depends on quantity, specification and place of delivery.

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The system works on three levels. The BMU sits at the cell, the CMU at the string, the GPD at system level. Cell voltage, cell temperature, string current and insulation resistance are measured.

If a value drifts, the alarm management reports it, shuts the system down and records the event. Operation runs through a phone app or a web interface. The catalogue lists microgrid, peak shaving, frequency control and PV charging stations as applications.

Technical data

Cell voltage measurement accuracy (BMU): ±5 mV
Cell voltage sampling interval (BMU): ≤200 ms
Cell temperature measurement accuracy (BMU): ±2 °C
Cell temperature sampling interval (BMU): ≤3 s
Cell balancing (BMU): passive balancing, 150 mA max.
Cell voltage measuring range (BMU): 1~5 V
Overcurrent protection (BMU): 250 A/1 s
Short-circuit protection (BMU): 500 A/10 ms
String voltage measuring range (CMU): 100~1,000 V
String voltage measurement accuracy (CMU): ±1 %
String voltage sampling interval (CMU): ≤100 ms
String current measuring range (CMU): ±300 A
String current measurement accuracy (CMU): ≤1 %
String current sampling interval (CMU): ≤50 ms
SOC calculation accuracy (CMU): ≤8 %
Input insulation resistance (CMU): ≥10 MΩ, 1,000 V DC