According to foreign media reports, ABB, a railway and electric travel traction technology supplier, announced the launch of an innovative kit, including AMXE250 motors and HES580 inverters customized for electric buses.
The new propulsion unit works together to provide the industry with more efficient, reliable and convenient solutions, marking a major leap forward in cleaner and more sustainable transportation options.
, (Photo source: ABB), HES580 is the first 3-level inverter on the market for electric buses, with excellent energy efficiency and power output.
Compared with traditional two-level inverters, the HES580 can significantly reduce motor harmonic losses by 75%, significantly reducing heat dissipation and fully saving energy.
The key to achieving this excellent performance is its innovative three-level architecture.
Unlike two-level inverters that switch between two voltage levels (DC+ and DC-), the HES580 introduces a third voltage step-neutral.
This effectively halves the voltage step during each switching operation, reducing current ripple and subsequently reducing harmonic losses.
As a result, the AMXE250 motor can operate at higher efficiency and provide better performance under various driving conditions.
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