A motor drive monitors operation of a motor and adaptively track disturbances experienced by the motor. The motor drive receives a command signal and a cycle position signal. An estimated disturbance observed throughout a cycle of operation is stored in a look up table, and the motor drive uses the stored values as a feedforward value into a control module. The motor drive adaptively monitors operation of the motor and generates a new estimated disturbance value throughout each subsequent cycle of operation. The values of the estimated disturbance are updated within the look up table as a function of the new estimated disturbance values and of the previously stored values. The stored disturbance values adaptively track cyclic disturbances in the controlled machine or process and to reduce the effects of these cyclic disturbances on tracking error in the controlled machine or process.

Systems and methods of the present disclosure enable drive filtering with reduced common mode and differential mode harmonics using a drive filter including, common-differential mode inductors connected to an alternating current (AC) power source, where each common-differential mode inductor has a common mode inductance and a differential mode inductance. A differential mode capacitor is connected to each common-differential mode inductors for filtering the differential mode inductances. A first common mode capacitor is connected to each common-differential mode inductor for filtering the common mode inductances, where each first common mode capacitor are commonly connected. A second common mode capacitor is connected to each common-differential mode inductor for filtering the common mode inductances, where each second common mode capacitor are commonly connected. Output contacts are connected to the common-differential mode inductors to connect a load to the AC power source.

Systems and methods of the present disclosure enable drive filtering with reduced common mode and differential mode harmonics using a drive filter including, common-differential mode inductors connected to an alternating current (AC) power source, where each common-differential mode inductor has a common mode inductance and a differential mode inductance. A differential mode capacitor is connected to each common-differential mode inductors for filtering the differential mode inductances. A first common mode capacitor is connected to each common-differential mode inductor for filtering the common mode inductances, where each first common mode capacitor are commonly connected. A second common mode capacitor is connected to each common-differential mode inductor for filtering the common mode inductances, where each second common mode capacitor are commonly connected. Output contacts are connected to the common-differential mode inductors to connect a load to the AC power source.

A motor control apparatus includes: a motor configured to drive a load; and a control unit configured to control the motor. The control unit is configured to, when activating the motor, determine whether a predetermined condition for determining that fluctuation in magnitude of the load occurs is satisfied, activate the motor in a first mode when the predetermined condition is satisfied, and activate the motor in a second mode when the predetermined condition is not satisfied, and the first mode is a mode in which an increase in rotation speed of the motor is gentler than an increase in rotation speed of the motor in the second mode.

A motor control apparatus includes: a motor configured to drive a load; and a control unit configured to control the motor. The control unit is configured to, when activating the motor, determine whether a predetermined condition for determining that fluctuation in magnitude of the load occurs is satisfied, activate the motor in a first mode when the predetermined condition is satisfied, and activate the motor in a second mode when the predetermined condition is not satisfied, and the first mode is a mode in which an increase in rotation speed of the motor is gentler than an increase in rotation speed of the motor in the second mode.

A motor control device controls a driving of a motor having a motor winding. The motor control device includes a motor control unit and a parameter setting unit. The motor control unit controls the driving of the motor. The parameter setting unit sets a control parameter related to a driving control of the motor such that at least one of a motor torque and a motor speed is variable according to a system temperature.

A continuously variable speed controller comprises an operating unit, an operation detector coupled to the operating unit to detect a continuous variation of an action of the operating unit, an information processor electrically connected to the operation detector to obtain a corresponding motor speed variation quantity based on a detection result from the operation detector, and a motor controller electrically connected to the information processor to receive the motor speed variation quantity and adjust a speed of the motor continuously based on the motor speed variation quantity. As such, speed control becomes more intuitive, and can achieve stepless speed change, while no need to set the speed switch to occupy the control and detection ports, simplifying structure of the product.

A continuously variable speed controller comprises an operating unit, an operation detector coupled to the operating unit to detect a continuous variation of an action of the operating unit, an information processor electrically connected to the operation detector to obtain a corresponding motor speed variation quantity based on a detection result from the operation detector, and a motor controller electrically connected to the information processor to receive the motor speed variation quantity and adjust a speed of the motor continuously based on the motor speed variation quantity. As such, speed control becomes more intuitive, and can achieve stepless speed change, while no need to set the speed switch to occupy the control and detection ports, simplifying structure of the product.

A system and method for shaping the trajectory of a motion command to reduce the effects of a load on performance of a motor dynamically modifies the motion profile in real time to limit the reference signals in the motion profile to feasible commands. A load observer determines an estimated disturbance acceleration. The estimated disturbance acceleration includes the dynamics of the controlled load and is used to modify a maximum and a minimum limit for the acceleration reference. The acceleration limits are, in turn, used to determine velocity limits. The motion profile and modified acceleration and velocity limits are provided to a state filter which determines a new motion profile for use by the motor drive to control operation of a motor and to control the load connected to the motor.

An apparatus includes a servo motor being configured to drive a traveling part for transferring an object along a traveling rail, a servo driver being configured to control an operation of the servo motor with adjusting a torque of the servo motor according to a load level, an overload determination unit being configured to check a degree of overload of the servo driver and a motion controller being configured to generate a speed signal and a speed profile according to a transfer command which a control unit of controlling an operation of the traveling part transmits thereto, the motion controller generating either a normal speed profile when the servo driver is not at an overload state or a corrected speed profile when the servo driver is at the overload state, and transmitting the speed signal and the speed profile to the servo driver.