SMA DC-DC Converter - Greater efficiency for large PV power plants

Greater efficiency for large PV power plants

SMA DC-DC Converter

Intelligently Control the Flow of Power

The new SMA DC-DC converter allows designers to increase their PV power plant’s yields by oversizing the DC array without compromising energy losses. This is accomplished with the new DC-coupling option and the generous DC–AC ratios of the Sunny Central EV inverter series.

The inverter can intelligently control the flow of power for many different use-cases, including clipped-loss capturing. The stored energy can be fed in at attractive times, for example, in the morning or at night, to achieve a better price-point for the energy. Grid operators are able to benefit from grid services, such as frequency control or time-based feed-in schedules.

Up to six DC-DC converters can be connected and operated simultaneously on the Sunny Central inverter. This minimizes battery short-circuits currents for high energy applications and avoids the need for additional and expensive protection measures inside the battery container.

Did you know?

How DC Coupling Can Increase the Efficiency of Power Plants

Read our whitepaper

Benefits of DC-coupled system layout

  • Retrofittable (storage solution can be integrated anytime)

  • Step-up/step-down converter with battery charge/discharge function

  • Limits high short-circuit currents of the battery

  • Intelligent power flow control of the system in the Sunny Central

  • Coordinated protection concept with Sunny Central

  • High efficiency at different DC voltages as well as partial and full load

  • Enables new business models

Benefits of DC-coupled system layout

Optimum integration

  • Plug N´Play Connection
  • No external controller required
  • Full tested and certified solution

Fast Installation

  • No additional combiner needed
  • Use of storage independant of PV
  • Retrofittable & Future Proof

Maximum Safety

  • Safe converter design
  • Reliable product
  • Complies to all relevant standards

High Flexibility

  • Small power blocks = Easy to scale
  • Extremely wide voltage window
  • System capable of large DC/AC ratios

Easy Commissioning

  • Single point of contact for Service
  • Reduction of risks & finger pointing
  • All conversation units from a single source

Whitepaper: Centralized or decentralized?

How DC Coupling Can Increase the Efficiency of Power Plants

A new flexibility and ease for the connection of storage at PV power plants

Read our whitepaper
How DC Coupling Can Increase the Efficiency of Power Plants

SMA DC-DC Converter



We are happy to assist you with your energy project.

Contact us now