As the adoption of renewable energy continues to increase, the need for solutions such as peak demand management and continuous power supply assurance is growing. It is becoming increasingly critical to deliver renewable energy to the grid, energy storage systems, and downstream loads with the lowest possible power loss. onsemi has launched a range of products for these purposes.
F5BP Power Modules For Energy Storage System applications
Recently, onsemi launched the latest generation of silicon and silicon carbide hybrid power integrated modules (PIMs) in F5BP packaging, which are ideal for increasing the power of large solar string inverters or energy storage systems (ESS).
Compared with previous generations of products, these modules provide higher power density and efficiency at the same size, increasing the total system power of solar inverters from 300kW to 350kW. This means that a large solar power plant with an installed capacity of one gigawatt using the latest generation of modules can achieve energy savings of nearly two megawatts per hour, equivalent to powering more than 700 homes per year. In addition, fewer modules are required to achieve the same power, which can reduce component costs by more than 25%.
Source from onesemi
Solar power is increasingly becoming the preferred renewable energy source worldwide due to its lowest levelized energy cost. To compensate for the instability of solar power generation, utility operators are also adding large battery energy storage systems (BESS) to ensure the grid's stability. To support this system combination, manufacturers and utilities need solutions to provide the highest efficiency and reliable power conversion. For every 0.1% increase in efficiency, $250,000 in operating costs can be saved per gigawatt of installed capacity per year.
The F5BP-PIM integrates 1050V FS7 IGBTs and 1200V D3 EliteSiC diodes to achieve high voltage and current conversion while reducing power consumption and improving reliability. The FS7 IGBTs have low turn-off losses, reducing switching losses by up to 8%, while the EliteSiC diodes provide excellent switching performance, reducing the on-state voltage drop (VF) by 15% compared to previous generations.
These PIMs include an innovative I-type neutral point clamped (INPC) topology inverter module and a flying capacitor topology boost module. The modules also use an optimized electrical layout and an advanced direct copper bond (DBC) substrate to reduce stray inductance and thermal resistance. In addition, the copper substrate further reduces the thermal resistance from the junction to the heat sink by 9.3%, ensuring that the module remains cool under heavy load. This thermal management is critical to maintaining the efficiency and life of the module, making it very effective in demanding applications that require reliable and continuous power supply.
“As a variable energy source dependent on sunlight, continual advances in increasing system efficiencies, reliability and advanced storage solutions are needed to be able to maintain the stability and reliability of global grids during peak and off-peak power demand,” said Sravan Vanaparthy, vice president, Industrial Power Division, Power Solutions Group, onsemi. “A more efficient infrastructure increases adoption and assures us that, as more solar power generation is built out, less energy is wasted and pushes us forward on a path away from fossil fuels.”
7-gen IGBT Modules Simplify The Design of Renewable Energy Applications
onsemi 7-gen 1200V QDual3 Insulated Gate Bipolar Transistor (IGBT) power module has higher power density and 10% higher output power than previous similar products.
When used in a 150kW inverter, the QDual3 module has 200W less losses than the closest competitor, greatly reducing the size of the heat sink. It is designed to work in harsh conditions and is ideal for high-power converters such as central inverters for solar power plants, energy storage systems (ESS), commercial agricultural vehicles (CAV), and industrial motor drives.
Source from onsemi
With the QDual3 module, manufacturers can design solar inverters and energy storage systems with stronger power generation and storage capabilities at the same system size, improve energy management efficiency, and enhance storage capacity, to connect solar power to the grid more smoothly.
The module also supports storing excess power in the energy storage system, which can effectively alleviate the intermittent problem of solar power generation points and ensure the reliability and stability of the power supply. For large-scale system applications, these modules can be connected in parallel to increase the output power to several megawatts.
The QDual3 IGBT module adopts an 800 A half-bridge configuration, integrates the new 7th generation trench field stop IGBT and diode technology, and uses ON Semiconductor's advanced packaging technology to reduce switching and conduction losses. The 800 A QDual3 module has an IGBT Vce(sat) as low as 1.75V (175℃), low Eoff, and 10% lower energy loss than the closest alternative. The QDual3 module also meets the stringent standards required for automotive applications.