The DC Motors speed can be controlled by varying the supply voltage and are available in a wide range of voltages, however the most popular types are 12 and 24V, with some of the advantages including easy installation, speed control over a wide range, quick starting, stopping, reversing and acceleration, high starting torque
, linear speed and torque curve.
The torque is expected to be higher than the starting torque
in order to ensure that the motor doesn't start in the reverse rotation.
In these positions, this type of motor has no starting torque
. In order to eliminate this defect in motors with this design, rotor teeth shape asymmetry is introduced [17, 18].
Its essence is to provide the necessary starting torque
, which is conditioned by the operating conditions of the drive.
The small form factor and 400 percent starting torque
of Lenze's g350 geared motor is designed for use in conveyors.
The selection of airfoil design is based on the performance of the Cl/Cd ratio although both have low starting torque
. The airfoils specification and configuration is shown in Table 1 and Fig.
Huh et al. numerically calculated the contact normal force and starting torque
of a lip for wheel bearings according to various design parameters.
Initially Motor starting torque
165Nm and finally settled the motor torque value of 75Nm.
Various supplementary design parameters were given from ICE technical data, including the starting torque
that ERPMSM had to overcome.
During the starting process, starting current is approximately 30 % and starting torque
is approximately 25-30% of direct on line starting.
Based on Bang-Bang control method, DTC system regulates stator flux and provides heavy starting torque
In some cases, the current drawn from the battery was recorded as 0 A when the wheelchair was stationary and the motor current increased rapidly to a high value in some situations when the starting torque
of the motor was high at the time of operating the wheelchair.