For decades, the power grid has been a reliable bridge between electricity production units and consumers. With just a gentle press of a switch, electricity can be smoothly and continuously transmitted to thousands of households. However, with the increasing demand for renewable energy sources such as solar and wind power, the existing power grid can only ensure sufficient power supply during peak periods by successfully addressing new challenges, including integrating energy storage systems.

EPC Power, as a well-known ground power plant inverter manufacturer providing cutting-edge power conversion solutions, has partnered with Wolfspeed to develop solutions and jointly tackle energy storage challenges. This strong alliance utilizes the powerful performance of silicon carbide to create the industry's first ground power station string inverter "M", making grid connected energy storage systems more efficient, reliable, and scalable than ever before.

Challenge:

Develop an energy storage inverter with industry-leading efficiency and power density

Design modular systems, with a single inverter unit covering a wide range of power and voltage levels

Ensure that the system is easy to maintain, repair, and can be mass-produced for rapid deployment worldwide

Innovation:

M "inverter - the industry's first modular string centralized inverter optimized for battery energy storage systems

Flexible inverters that support grid connection, covering a wide range of power and voltage levels, showcasing industry-leading efficiency and power density

Low maintenance and repair requirements

Easy to mass produce, solutions can be quickly deployed globally

Solution:

Two innovative companies join forces to produce the 2300 V Wolfspeed WolfPACK? Integrating power modules into EPC Power's new energy storage solution

'M' represents modularity

Traditional energy storage systems use centralized inverters for power conversion. The operating power of these individual devices is 4-6 megawatts, and due to the large scale and high complexity of the system, they are prone to shutdown issues. When storing a large amount of renewable energy for a long time, centralized inverters face greater pressure. EPC Power's "M" inverter combines the flexibility of string inverters commonly used in household and commercial solar systems, and can be scaled up to provide renewable energy for the entire city.

M adopts a modular approach to achieve customized centralized inverters by connecting multiple small inverters. The "M" inverter has fewer passive components, smaller size, wider AC and DC operating range, and provides world-class power density. Compared with centralized inverters, the "M" modular system is easier to install and maintain, with fewer fault points and longer trouble free operation time.

M "bridges the gap between two inverter architectures, achieving stable and reliable battery storage at higher voltage levels. By distributing energy to smaller units, power units can design inverter systems that better meet the specific needs of specific energy storage stations.

The key to innovation

Technology opens up business opportunities. Silicon carbide is a tool, and if its advantages can be fully utilized in the system, fundamental changes in technology can be achieved. Wolfspeed silicon carbide enables EPC Power to change the way energy is produced and stored globally Devin Dilley, President and Chief Product Officer of EPC Power

EPC Power is well aware that utilizing the unique advantages of silicon carbide is the key to achieving reliable energy storage at the grid level. Wolfspeed's new 2300 V silicon carbide Wolfspeed WolfPACK power module is designed specifically for 1500 V busbar applications, achieving a transition from a typical three-level architecture to a simplified two-level power conversion system. This solution changes the system design from traditional busbars to lower cost printed circuit boards, significantly reducing development time and costs.

Compared the complex three-level NPC system architecture using 1200 V IGBT with the minimalist two-level system using 2300 V WolfPACK power module. The simplified two-level system reduces the number of drivers, lowers control complexity, and improves scalability.

The switching performance of silicon carbide modules enables EPC Power to significantly reduce the size of "M", decrease the number of passive components, and lower overall system costs. This innovation simplifies installation and maintenance, creating the industry's first inverter optimized for ground power station battery energy storage.

EPC Power works closely with Wolfspeed experts to maximize the use of the 2300 V WolfPACK cosmic ray FIT failure rate (7-8 times lower compared to 2000 V devices), thereby extending the lifespan of the "M" system. By utilizing this feature, the service life of "M" can be extended and its reliability can be improved, thereby directly reducing on-site failures and lowering maintenance costs.

The Power of Collaboration

As a pioneer in the world's most advanced silicon carbide semiconductor technology, Wolfspeed provides practical support throughout the design process to help customers maximize the advantages of silicon carbide. This philosophy guides Wolfspeed to collaborate with market innovators and drive the world's most disruptive technological developments.

The concepts of EPC Power and Wolfspeed are highly compatible. Wolfspeed is a leader in the commercialization of silicon carbide and has maintained a leading position in the industry for many years. What reason is there not to cooperate with this company Adam Kabulski, Vice President of Global Sales and Marketing at EPC Power

Wolfspeed and EPC Power will work together, "said Jay Cameron, Senior Vice President and General Manager of Power Semiconductors at Wolfspeed." I am deeply impressed by EPC Power's ambition and strong capabilities. They are driving us all forward steadily, striving to launch products that can completely transform the power grid and create a more sustainable future for all of us

This is reported by Top Components, a leading supplier of electronic components in the semiconductor industry

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Media Relations

Name: John Chen

Email: salesdept@topcomponents.ru