New Industry Products

Innovative BCU Power Solutions for Energy Storage Systems

March 25, 2020 by MORNSUN

This article introduces MORNSUN's PV200-29Bxx series and LMF150-20Bxx series.

The proportion of solar photovoltaic power generation systems in the Power Grid is gradually increasing. How to ensure the reliability and safety of the power supply draws a big challenge for the Power Grid. In an Energy Storage System(ESS), batteries are generally installed in the Battery Container according to the international standards, which consists of batteries, Battery Series Control Unit(BCU), HVAC, fire suppression system, etc.

MORNSUN is always providing you with the diverse power solutions for the Energy Storage Industry. Check out below the BCU power solution for the Battery Container.


Power requirements of BCU in the Battery Container

DC/DC Solution Requirements

  • Ultra-wide input voltage range of 500-1500VDC that depends on the voltage of Battery Racks

  • High isolation voltage, reinforced insulation and high level of safety

  • Input reverse polarity protection

  • Meets complicated environmental requirements


AC/DC Solution Requirements

  • High requirements for surge voltage input

  • PFC function

  • Avoid harmonic interference

  • Excellent EMC performance


Innovative BCU power solution for energy storage system Figure 1



Innovative BCU power solution for energy storage system Figure 2


200W 300-1500VDC Ultra-wide Input DC/DC Converter PV200-29Bxx Series

  • Ultra-wide 300-1500VDC input voltage range

  • High isolation voltage 4000VAC

  • Industrial grade operating temperature -40℃ to +70℃

  • Input reverse polarity protection

  • CSA-C22.2 No.107.1, EN62109 safety approved


Innovative BCU power solution for energy storage system Figure 3


AC/DC Enclosed LMF150-20Bxx Series with 0.99 Power Factor!

  • Universal 85-264VAC or 120-373VDC input

  • Withstand 300VAC surge input for 5s

  • High isolation voltage up to 4000VAC

  • Built-in active PFC function(0.99 power factor)

  • EMI meets CISPR32/EN55032 Class B

  • Meets IEC/EN62368, UL6