Purpose – The purpose of this paper is to analyze the impact of the torque, power, jerk and energy consumed constraints …/methodology/approach – An algorithm is presented in which the trajectory is generated under real working constraints (specifically torque, power … the value of the torque, power, jerk and energy consumed and the relationship between them, therefore enabling the user to …

Small Darrieus hydrokinetic turbines with fixed pitch blades typically suffer from poor starting torque, low efficiency … helical blades, or reduced by using multiple blades. Starting torque can be marginally improved by the use of cambered blade … starting torque, high efficiency and reduced shaking but active pitch control systems add considerably to complexity and cost …

been suggested to increase starting torque and efficiency, ducts to increase power output and helical blades to produce … smooth torque. To assess each of these modifications, tests were conducted in Australia and Canada on HKTs with fixed and … to about 0.3. Fixed blade turbines, both straight and helical, exhibited low starting torque, while variable pitch …

Purpose – The purpose of this study is to demonstrate the variation between the set torque and the actual torque at … factorial experiments. Design/methodology/approach – The methodology used was design of experiments with the set torque as the … signal factor and the tripping torque as response variable. The compounded noise factor was identified based on the type of …

torque ripple. Based on winding function approach, the proposed model consists in computing self and mutual inductances … reduce torque ripple. These currents are used within a vector control scheme. Satisfactory agreement between simulation and …

simulation of the characteristics (e.g., power output, torque fluctuation, induced velocity, and acoustic emission) of tidal …

presents a control strategy that achieves torsional torque suppression and power system stabilization. Since the measurement of … the torsional torque is technically difficult and there is uncertainty in mechanical constants of the shaft torsional … system, the torsional torque is estimated by using a H∞ observer. The simulation results validate the effectiveness of the …

dynamics is proposed. By analyzing the driving torque acting on each axis while the robot moves in different directions, the … into the fuzzy sliding mode control (FSMC) system to coordinate the driving torque as a factor of influence. Findings – A …

Conventional Savonius rotors have high coefficient of static torque at certain rotor angles and a negative coefficient … of static torque from 135° to 165° and from 315° to 345° in one cycle of 360°. In order to decrease this variation in … static torque from 0° to 360°, a helical Savonius rotor with a twist of 90° is proposed. In this study, tests on helical …