Australian power conversion technology specialist Rectifier Technologies (ASX: RFT) has unveiled its latest isolated power converter, the RT22. The 50kW Electric Vehicle (EV) charger module has been developed for high-powered EV chargers (HPC).
The RT22 includes features that address the common challenges faced when deploying High-Powered Chargers, most notably its built-in reactive power control and compliance to class B EMC. The RT22 is also ‘hot-pluggable’, allowing operators to avoid accidents during maintenance and to safely remove and install modules conveniently.
Each RT22 EV charger module is rated at 50kW and strategically sized to meet the defined power classes of DC Electric Vehicle chargers. For HPC manufacturers to create a 350kW High-Powered Charger, they can simply connect seven (7) RT22 modules in parallel, within their power enclosure. At an efficiency of greater than 96 percent, and a wide output voltage range between 50VDC to 1000VDC, the RT22 caters to battery voltages of all EVs currently available, including electric buses (around 700VDC or higher), as well as newer passenger EVs such as the Taycan from Porsche.
Built-in Reactive Power Control – To Meet the Increasing Demand for High-Powered Charging
As High-Powered (or Ultra-Fast) DC charging networks are rolled out across the world, an unprecedented strain will be placed on electricity networks as they draw large and intermittent amounts of power that can result in unwanted voltage fluctuations. Further, network operators are facing increasing difficulty installing HPCs without expensive network upgrades.
The RT22 has been built to address these issues, with its built-in reactive power control providing a new mechanism to regulate grid voltage levels. This allows reduced network costs and greater flexibility at installation locations.
Class B EMC – Enabling High-Powered Charger Within Urban Environments.
The RT22 will be certified to meet Class B electromagnetic compatibility (EMC).
For charger manufacturers, having this level of compliance in their power converters ensures they have the flexibility to develop a charger from a low-EMI foundation, and provide more options for potential use cases for their charger, particularly as the market on highways becomes more crowded.
For instance, HPCs are largely confined to highways, where it makes sense, as truck drivers and drivers of standard vehicles travelling long distances need a quick charge on a highway. But as heavy vehicles become more commonplace and drivers want ultra-fast charging within cities, there is likely to be a concurrent increase in the need for HPCs within urban centres.
HPC manufacturers now have a 50kW EV charger module that addresses the common challenges faced when deploying HPCs. Pre-production units are expected to be ready in Q3 2021. Read RT22’s product specification.
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