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In this paper a fractional-order (or alternatively known as a non-integer) FOPID type controller (that gives better performance than classical, integer-order PID type) was proposed for tracking of the rotational speed reference signal of propeller in electric propulsion system used in multirotor flying robots and platforms. For propulsion system (electronic speed controller, brushless direct current...
Multirotor aerial vehicles are extensively employed in applications requiring a stationary surveillance platform to monitor a situation on the ground for a specific duration. In most cases, these systems are small in size and weigh < 10Kgs. This paper presents a design methodology employed to develop a multirotor system exceeding the conventional size and weight category. The study includes modelling...
An optimization problem based on discrete-integer and continuous variables in order to design a multirotor for a specific application (maximum thrust-to-weight and maximum flight time) is developed. We considered the length and the diameter of the rods as continuous variables and the selection of the motors, propellers, and battery as discrete-integer variables, the components selected are available...
The increasing civilian demand for autonomous aerial vehicle in the professional markets led to an abundance of inexpensive navigational hardware platforms and vehicle prototypes. Current photogrammetry-based applications require crisp and precise positioning of images so that the process does not fails. Also systems adaptable to the circumstances for better effectiveness, vehicles capable of vertical...
Conventional quadrotor UAVs have crucial underactuation limitations. This appears in the coupling between the roll angle and the movement in y-direction, and between the pitch angle and the movement in x-direction. The quadrotor capability of hovering with either roll or pitch angle is restricted due to these limitations. In this paper, a novel design modification is proposed in order to increase...
The versatility of the quadcopter as one of the most flexible aerial vehicle has earned its spot as a favourite for drones and hobby projects. Conventional quadcopters are in use today, which consists of four propellers attached to four motors on the quadcopter body. The propellers are paired such that the opposite pairs rotate in the same direction whereas the adjacent pairs rotate in the opposite...
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