摘要:
Disclosed herein are a method and apparatus of controlling driving of a two-phase switched reluctance motor (SRM). The apparatus includes: a target speed arrival judging unit judging whether or not a current speed of the SRM has arrived at a target speed; a zero volt switching (ZVS) achievement judging unit judging whether or not the SRM is in a state in which ZVS is possible; a negative torque generation judging unit judging whether or not a negative torque has been generated in the SRM; an advanced angle controlling unit judging whether or not an advanced angle will be controlled based on judgment results of the target speed arrival judging unit, the ZVS achievement judging unit, and the negative torque generation judging unit; and a dwell angle controlling unit judging whether or not a dwell angle will be controlled on the judgment results.
摘要:
Disclosed herein is a rotor of a brushless direct current motor including magnets, a core in which the magnets are accommodated, a rotating shaft inserted into the core, and a pair of cover members inserted into the rotating shaft to cover both ends of the core, respectively.
摘要:
Disclosed herein is a multi-phase switched reluctance motor apparatus including: a multi-phase switched reluctance motor; a position sensing sensor provided at one side of the multi-phase switched reluctance motor; and a controller connected to the multi-phase switched reluctance motor and the position sensing sensor and controlling power in a multi-phase excitation scheme according to a detection angle of the position sensing sensor to supply the power to the multi-phase switched reluctance motor. The multi-phase switched reluctance motor may generate a reluctance torque while reducing torque pulsation, noise, and vibration.
摘要:
Disclosed herein are a switching control apparatus for a two phase switch reluctance motor and a control method using the same. The switching control apparatus includes a rectifier; and an active converter including a pair of common switches, a pair of first phase switches, a pair of serially connected second phase switches, a plurality of current feedback diodes each connected to the switches, and a pair of drivers controlling the switches and operated as operation modes 1 to 3 to provide the commercial power provided from the rectifier to the two phase SRM and drive the two phase SRMs.
摘要:
Disclosed herein are a switching control apparatus for a two phase switch reluctance motor and a control method using the same. The switching control apparatus includes a rectifier; and an active converter including a pair of common switches, a pair of first phase switches, a pair of serially connected second phase switches, a plurality of current feedback diodes each connected to the switches, and a pair of drivers controlling the switches and operated as operation modes 1 to 3 to provide the commercial power provided from the rectifier to the two phase SRM and drive the two phase SRMs.
摘要:
Disclosed herein is a rotor assembly, including: a rotor portion provided with an insertion hole into which a rotating shaft is inserted; and a magnet inserted into an embedded hole radially formed at a cross section axially vertical to the shaft of the rotor portion outwardly from the rotor portion, wherein the magnet is formed so that a width in a direction vertical to a radial direction of the magnet gradually increases from the shaft radially outwardly from the rotor portion. According to the preferred embodiment of the present invention, more magnets can be arranged in the same area, the freedom of design can be improved, and the flux amount can be increased, by the structural change of the magnet embedded in the rotor portion.
摘要:
Disclosed herein is a switched reluctance motor in which a shaft of the motor and a shaft of a load are aligned with each other so that maximum torques of the motor and the shaft coincide with each other.
摘要:
Disclosed herein is a switched reluctance motor comprising: a rotor having a shaft disposed at a central portion thereof and having salient poles formed at an outer circumference thereof; a stator having the rotor rotatably installed therein while forming a gap and having salient poles facing the salient poles of the rotor; and an extraction pressure decreasing unit separating the rotor and the stator from a mold, wherein the rotor and the stator are made of a soft magnet composite (SMC).
摘要:
Disclosed herein are a method and apparatus of controlling a switched reluctance motor (SRM). The method of controlling driving of an SRM, the method includes: sensing a variation of a load of the SRM; and controlling both of a dwell angle and a PWM duty ratio of the SRM according to the variation of the load of the SRM. Therefore, an angle and a current are simultaneously controlled, thereby making it possible to decrease a torque ripple at a low speed and constantly control a torque and rapidly respond to a command speed at a high speed. In addition, a speed and a torque of the SRM may be more precisely controlled.
摘要:
Disclosed herein is a switched reluctance motor including: a stator; a rotor rotating based on a motor shaft with respect to the stator; a housing having a cup shape and receiving the stator and the rotor therein and including a receiving groove at a central portion of a lower surface thereof; a sensor part including a disk coupled to a predetermined position of a lower portion of the motor shaft extended up to the receiving groove and a sensor detecting a rotational state of the disk, and mounted on the outside of the housing; and filter shielding the sensor part.