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 has become the leading supplier of utility-scale solar inverters for photovoltaic power plants in both North and Latin America, according to a 2019 report on market shares and ordering trends of inverters for solar power plants, published by Wood Mackenzie Power & Renewables.
Power Electronics chose the Intersolar Europe trade fair, held in Munich on 15-17 May, as the launch venue for its latest developments in solar energy, energy storage and electric mobility. The event marked a year since the company had successfully established itself as the number-one supplier of utility-scale solar inverters in the United States, Latin America and Spain.
The Valencia-based company Power Electronics will be participating, with its HEC V1500 solar inverter, in what is to be Iberdrola’s largest solar project in the world: the mega-sized Núñez de Balboa, complex in the municipalities of Usagre, Hinojosa del Valle and Bienvenida, in the Badajoz region of western Spain.
We are here to help you
With 24/7 access to our technical assistance.
Please contact us for further help and information.