Electric Traction Motor Technology Playing Major Role in EV Amongst Other Applications
Climate change is one of the world's most pressing issues and decarbonizing our energy system is a critical component of addressing it. Because fossil-fuel-powered motor cars, trains, and aircraft account for around one-quarter of worldwide energy consumption – and roughly the same amount of global carbon-dioxide emissions. Hence, clean transportation is important in the battle against climate change. Both the environment and human health are harmed by these pollutants.
Electric vehicles (EVs) can assist to reduce carbon emissions in both transportation and power generation. This is due to the flexibility that EV batteries may provide to the power supply, as well as the reduced exhaust emissions. They provide an untapped source of flexibility that can assist energy systems significantly. Various novel electric traction drive technologies have been applied in commercially available electric vehicles to boost efficiency and power density since the advent of electric vehicles. In order to enhance user space in the car, extend range, and promote market acceptance, power density and performance of the traction motor drive are projected to be greatly increased for future electric vehicles.
Vehicle traction using electric motors advanced vehicle propulsion systems rely heavily on drives, which include electric traction motors and power electronics. The research of innovative materials and manufacturing for the next generation of lightweight ultraefficient machines is motivated by the constraints that traction motor design faces in terms of fulfilling highly demanding criteria for power densities and conversion efficiencies. Furthermore, in order to gain momentum in the market, these electric traction drive systems must allow cost-effective vehicle options. The electric traction motor market size is estimated to be USD 14,125.3 million in 2020 and is projected to register a CAGR of 21.2% over the forecast period.
Technology Trends in Electric Traction Motor:
To suit diverse performance needs, the automobile industry has explored a broad variety of electric traction designs. Single motors with mechanical transmissions and individually controlled in-wheel drives are the most frequent vehicle layouts (direct-drive or via reduction gear). Previously, they concentrated on hybrid electric cars (HEVs), but now they are concentrating on full electric vehicles (EVs). The power electronics (inverter, boost converter, and on-board charger) and traction motor used to move an electrified vehicle are referred to as electric traction. To allow for wide market penetration of electric cars, the design and production of electric traction motors is undergoing a continuous research and improvement process.
Improvements to electric motors are on the horizon, with a particular focus on lowering the usage of rare earth minerals inside the rotor magnet, which accounts for the majority of the motor's expenses yet is critical to fulfilling performance requirements. In addition, the key themes are cost, volume, and weight reduction while preserving or improving performance (better efficiency at higher power) and dependability (a 15 year, 300K mile lifetime).
Motor topology developments, advanced power electronics, advanced materials, winding design approach, design optimization and robust design method, and modular and scalable designs are some of the key techniques to achieve growth trends.