DS-SEP23-PG52_Layout 1 12/09/2023 13:51 Page 1
FEATURE
POWER
DEVELOPING AN E-DRIVE SYSTEM FOR AN ELECTRIC FLYING BOAT
An advanced e-drivetrain system has been developed by Equipmake for an electric flying boat with a fast-cruising range of 100 nautical miles
L
ed by former F1 engineer Ian Foley, Equipmake of Norfolk has forged its reputation on advanced EV technology,
delivering a suite of electrification solutions – from cutting-edge electric motors to complete EV powertrains. The company serves a wide range of sectors, including automotive, marine, mining, off-highway and aerospace. Recently, the company supplied an
advanced e-drivetrain system for a world-first electric flying boat. To meet application demands, Equipmake
designed, developed and manufactured a bespoke fully electric drivetrain, featuring a specially adapted version of its lightweight, power dense, high-performance HPM-400 motor, producing peak power of 80kW, complete with an integrated gearbox. The drivetrain also features Equipmake’s own HPI-450 IGBT inverter and a 120kWh custom battery pack.
100 NAUTICAL MILES A collaboration between modern classic yacht design and build experts, Spirit Yachts, and advanced marine engineering company, BAR Technologies, the new SpiritBARTech35EF is said to be the first of its kind to have a fast-cruising range of 100 nautical miles. Using BAR Technologies’ America’s Cup simulation and design expertise, the purpose-built 35ft electric flying boat features a trio of active retractable foils to help minimise drag. The boat is constructed fromamix of titanium
and cold-moulded wood with a carbon fibre reinforced shell, a structure that weighs just a tonne. Combined with the advanced e-drivetrain fromEquipmake, the SpiritBARTech35EF has a top speed of 28 knots/32mph and can achieve its total range at a speed of 22 knots. According to the company, this project is the
first time its electrification products and expertise have been applied to the rapidly growing electric marine market. Following the success of this project, Equipmake and BAR Technologies are
5 DESIGN SOLUTIONS SEPTEMBER 2023 2
exploring further opportunities to collaborate and increase the potential market for Equipmake’s products in BAR Technologies’ systems. Ian Foley, CEO, Equipmake said: “On behalf of
everyone at Equipmake I’mproud we have played a key role with Spirit Yachts and BAR Technologies on this incredible electric flying boat, which truly sets new standards for long range electric vessels. Our in-house developed electrification technology has many varied high-performance applications, from aerospace to automotive, and the SpiritBARTech35EF is the perfect showcase for how it can be applied to the rapidly growing electric marine market.”
Adding to this, John Cooper, CEO, BAR
Technologies, said: “We firmly believe that the future of this sector will be defined by developments in the sustainability and efficiency of vessels. We have been delighted to partner with Equipmake on its remarkable powertrain. Ian Foley and his team are true leaders in the field of electrification and share our ethos of lightweighting and competition-bred design and development. We look forward to exploring further opportunities to work together.”
Equipmake
https://equipmake.co.uk
INCREASING POWER SUPPLY SYSTEM EFFICIENCY
New to Rutronik’s product range are the Optima and Speedy high-voltage FRED types – with 600V and 1200V respectively – from PANJIT. The power diodes improve the system efficiency of an application and are used for low-frequency
(Optima) or high-frequency (Speedy) applications. They feature low leakage current and improved EMI characteristics. PANJIT FREDs are ideal for rectifier or freewheeling circuits in a wide range of power applications, such as UPS systems or data centers, but also household appliances. The stability of power supply systems depend, among other things, on the electrical properties
of the power diodes used. It is therefore important to use the exact FRED suitable for each application, keeping in mind the target switching frequency of the planned application. Optima- type FREDs are suitable for rectifier circuits such as high-power bridge diodes and bypass diodes, optimised for lower power losses at low VF, and predestined for low switching frequency applications. Speedy-FREDs are more suitable for high-frequency freewheeling switching in CCM boost PFC and Vienna PFC to achieve maximum system efficiency. These offer low reverse recovery time (trr) and optimised Vf, as well as better trade-off performance between Vf and the reverse recovery charge (Qrr).
Rutronik
www.rutronik24.com
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