The invention discloses a dynamotor module with DC terminal voltage, comprising a first dynamotor with DC terminal voltage and a second dynamotor with DC terminal voltage, wherein the first and the second dynamotor with DC terminal voltage are connected in parallel with a DC common terminal voltage Va, and the first dynamotor with DC terminal voltage has a first rotation speed Si and a first effective magnetic flux density B1, the second dynamotor with DC terminal voltage has a second rotation speed S2 and a second effective magnetic flux density B2, wherein when the first dynamotor with DC terminal voltage and the second dynamotor with DC terminal voltage are operated at a steady state, the first rotation speed Si and the second rotation speed S2 are not equal to zero, and the first effective magnetic flux density Bland the second effective magnetic flux density B2 are not equal to zero, and the absolute ratio of |S1|/|S2| is directly proportional to B2/B1.

The invention discloses a dynamotor module with DC terminal voltage, comprising a first dynamotor with DC terminal voltage and a second dynamotor with DC terminal voltage, wherein the first and the second dynamotor with DC terminal voltage are connected in parallel with a DC common terminal voltage Va, and the first dynamotor with DC terminal voltage has a first rotation speed S1 and a first effective magnetic flux density B1, the second dynamotor with DC terminal voltage has a second rotation speed S2 and a second effective magnetic flux density B2, wherein when the first dynamotor with DC terminal voltage and the second dynamotor with DC terminal voltage are operated at a steady state, the first rotation speed S1 and the second rotation speed S2 are not equal to zero, and the first effective magnetic flux density Bland the second effective magnetic flux density B2 are not equal to zero, and the absolute ratio of |S1|/|S2| is directly proportional to B2/B1.

Embodiments of the present disclosure provide a motor control method, a laser radar, and a movable device. The method includes: determining start times of multiple motors, the start times of the multiple motors being partially or completely different; and controlling each motor of the multiple motors to start at a corresponding start time of the motor.

Enhanced network power factor corrective designs are presented that can use corrective devices that achieve long-term, operationally stable mechanical work. Embodiments can utilize reverse-winding induction motor designs with engineerable parameters and configurations for the reverse winding (13) in systems and through methods where an inductive motor (1) can present a current that leads voltage and a leading power factor (16) to correct other existing induction motors (8) in an initial network (9) or be optimized for a particular application. Designs also present a power factor correction that can present a variable correction without altering the character or physical capacitive value of an electrical correction component. Individual induction motors that have leading current and a leading power factor (16) can be provided to improve reverse winding induction motors. Progressive start controls (23) can also be used in a manner that limits inrush current to operational levels with passive current establishment control where reverse winding (13) effects can be used and perhaps even delayed to passively limit and even effect a current decrease while rotational acceleration continues after initial start transition.

Enhanced network power factor corrective designs are presented that can use corrective devices that achieve long-term, operationally stable mechanical work. Embodiments can utilize reverse-winding induction motor designs with engineerable parameters and configurations for the reverse winding (13) in systems and through methods where an inductive motor (1) can present a current that leads voltage and a leading power factor (16) to correct other existing induction motors (8) in an initial network (9) or be optimized for a particular application. Designs also present a power factor correction that can present a variable correction without altering the character or physical capacitive value of an electrical correction component. Individual induction motors that have leading current and a leading power factor (16) can be provided to improve reverse winding induction motors. Progressive start controls (23) can also be used in a manner that limits inrush current to operational levels with passive current establishment control where reverse winding (13) effects can be used and perhaps even delayed to passively limit and even effect a current decrease while rotational acceleration continues after initial start transition.

Embodiments of the present disclosure relate to a refrigeration system that includes a compressor configured to circulate refrigerant along a refrigerant loop, a motor configured to drive the compressor, and a variable speed drive coupled to the motor and configured to supply power to the motor. The variable speed drive includes a primary winding of a step down transformer coupled to an alternating current (AC) power source, a first secondary winding of the step down transformer, where the first secondary winding is configured to supply power at a variable supplied voltage to the motor when the motor operates below a threshold voltage, and a second secondary winding of the step down transformer, where the second secondary winding is configured to supply power at a fixed supplied voltage when the motor operates at or above the threshold voltage.

A driving device includes a driving unit disposed on a fixed member, a supporting member, an output member, an elastic member configured to couple the supporting member and the output member, a first scale, a first sensor configured to detect the rotation angle of the output shaft of the driving unit with the first scale, a second scale, and a second sensor configured to detect the relative displacement between the supporting member and the output member with the second scale. One of the first scale and the first sensor is disposed on the fixed member. The other of the first scale and the first sensor and one of the second scale and the second sensor are disposed on the supporting member. The other of the second scale and the second sensor is disposed on the output member.

Enhanced network power factor corrective designs are presented that can use corrective devices that achieve long-term, operationally stable mechanical work. Embodiments can utilize reverse-winding induction motor designs with engineerable parameters and configurations for the reverse winding (13) in systems and through methods where an inductive motor (1) can present a current that leads voltage and a leading power factor (16) to correct other existing induction motors (8) in an initial network (9) or be optimized for a particular application. Designs also present a power factor correction that can present a variable correction without altering the character or physical capacitive value of an electrical correction component. Individual induction motors that have leading current and a leading power factor (16) can be provided to improve reverse winding induction motors. Progressive start controls (23) can also be used in a manner that limits inrush current to operational levels with passive current establishment control where reverse winding (13) effects can be used and perhaps even delayed to passively limit and even effect a current decrease while rotational acceleration continues after initial start transition.

Enhanced network power factor corrective designs are presented that can use corrective devices that achieve long-term, operationally stable mechanical work. Embodiments can utilize reverse-winding induction motor designs with engineerable parameters and configurations for the reverse winding (13) in systems and through methods where an inductive motor (1) can present a current that leads voltage and a leading power factor (16) to correct other existing induction motors (8) in an initial network (9) or be optimized for a particular application. Designs also present a power factor correction that can present a variable correction without altering the character or physical capacitive value of an electrical correction component. Individual induction motors that have leading current and a leading power factor (16) can be provided to improve reverse winding induction motors. Progressive start controls (23) can also be used in a manner that limits inrush current to operational levels with passive current establishment control where reverse winding (13) effects can be used and perhaps even delayed to passively limit and even effect a current decrease while rotational acceleration continues after initial start transition.

A dual actuated power pack (300) comprises a battery (104) and first (101) and second (102) electric motors, as well as a power generator (103). The first electric motor (101) is powered by the battery (104) and the second electric motor (102) by a grid (106). The first and second electric motors (101, 102) are mechanically coupled (108) with each other so that when said second electric motor (102) is powered, said second electric motor (102) actuates (109) said power generator (103) and said first electric motor (101) at the same time, whereupon the first electric motor (101) functions as a hi-power battery charger and recharge the battery (104) when said second electric motor (102) actuates (109) the power generator (103). When the second electric motor is not used, the first electric motor (101) is powered (104, 105), and the power generator (103) is actuated (108) by said first electric motor (101).