The Future of Electric Propulsion
Battery life is a constant worry for those who operate UAVs. Whether it’s a large, industrial, and long-distance flier or a small recreational model, the first question when planning a mission is always: how much energy is there and how far can I fly?
In the constant battle between range, weight, torque, and battery size, conventional EV motor design seems to be lagging when it comes to inventiveness. Traditional permanent magnet brushless motors can provide variable speed outputs, with their motors generating high torque at low speeds and high speed at low torque levels. However, the range of speed and torque characteristics may not be sufficient to cover the desired range, even if the output power of the motor is sufficient.
