Torque control of dc motor

With some products, Velocity mode operation can include capacity for regeneration. DC Drives – Torque Control : To control DC motors torque, a DC drive will regulate . The question is not clear, to me. There are three main types of D. F the main factor to control armature current, depends on speed.

A System for Speed and Torque Control of DC.

Motors with Application to Small Snake Robots.

Ankur Kapoor, Nabil Simaan, Peter Kazanzides. Department of Computer Science. However, at low speeds the error in stator resistance used in stator flux estimation becomes critical. Maximum sustainable torque is achieved at full rated current on the armature ( and field). Most DC motors , especially small ones such as your 2HP . The motor current will not vary over the speed range if the load is less than . Simplified DC Motor Torque Control . Figure 9: Steady state relationship between torque and speed in the stator voltage control with constant armature current.

Figure 10: Block diagram of the DC motor with constant armature current. The transfer matrix of the whole system is easily computed from the . Blocks pertinent to the control of the DC motor are modeled using basic blocks found in the Sim. Abstract: A high-stiffness torque control system for geared DC motors is considered.

Methods to identify the parameters needed to achieve this control system are described. Direct torque control has some. Abstract—In this paper, the position-sensorless direct torque and indirect flux control of brushless dc (BLDC) motor with nonsinu- soidal back electromotive force (EMF) has been extensively inves- tigated.

In the literature, several methods have been proposed for. BLDC motor drives to obtain optimum current and torque . Currently, road vehicles are more equipped with permanent magnet synchronous motors. Particularly interesting are brushless dc (BLDC) motors , which, due to. The command torque is achieved by the phase current reshaping. The recursive least square algorithm is used for the online parameters estimation, hence the indirect adaptive controller is built.

In this section we look at the evolution of DTC, charting the four milestones of variable speed drives, namely: – DC motor drives. We examine each in turn, leading to a . AC drives, frequency control, PWM. The problem is that you cannot control both the voltage and the current.