3190 kVA - 3630 kVA
The HEM medium-voltage inverter from Power Electronics is designed for large-scale solar applications that require the advantages of a central inverter combined with the modular design of string architecture. The medium-voltage equipment is likewise integrated into the package.
FIELD REPLACEABLE UNITS
The Freesun HEM unit is the only solar inverter on the market to integrate the transformer and medium-voltage cells into the same set of equipment. Its use in utility-scale plants delivers considerable savings in terms of CAPEX, while greatly simplifying design and installation.
Field Replaceable Units
The Freesun HEM device consists of six FRUs (Field Replaceable Units) designed, as the name implies, for easy replacement in situ. These are connected to each other in such way that if there is a breakdown, the faulty module shuts down and its energy is evenly distributed among the still-active FRUs.
iCOOL 3 is a ventilation system designed to supply a constant flow of clean air to the inside of the equipment without any need for dust filters or liquid cooling.
Multilevel topology is the most efficient way of addressing the management of high DC voltages. This three-level configuration reduces losses at the power stage, increases efficiency and minimizes overall harmonic distortion.
This innovative control mode allows you to reduce medium-voltage transformer loss by up to 25%, and also to cut the plant’s power consumption.
The Freesun HEM unit comes with a high level of protection against external agents such as rain, snow and ice. It is fitted with insulating panels designed to shield it from solar radiation and a casing that provides C4 corrosion protection by default.
During the night, when the inverter does not actively export power, it can import a small amount of energy to prevent internal condensation – without any use of heating elements.
The Freesun HEM if fitted with all the medium-voltage elements. This compact solution simplifies the task of designing the installation, while also reducing connection costs. Its front access also makes it easier to maintain.
The Freesun HEM device allows the connection of up to six Freemaq DC/DC units.
Freesun HEM inverter modules offer a useful service life of more than 30 years’ operation in aggressive environments and under extreme weather conditions. They are tested and configured to withstand anything from the sub-zero temperatures of the Siberian tundra to the searing heat of California’s Death Valley.
Power Electronics will be attending Solar Power International (SPI), Energy Storage International, and North America Smart Energy Week at the Salt Palace Convention Center in Salt Lake City, Utah, from 23 to 26 of September. This is the largest gathering of industry experts, leaders, and professionals from the solar, energy storage, smart energy, microgrid solutions, and EV infrastructure industry in North America.
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The head of the solar division of Power Electronics for Latin America, Raquel Igualá, has highlighted the importance of knowing exactly the grid code that will be required prior to the sizing of a photovoltaic plant, in its participation in the portal’s interview cycle of news specialized in renewable energies of Latin America “Energía Estrategica”. […]
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