TH58880B - Motor drive tool - Google Patents

Abstract

DC60 (28/10/56) High-speed driving is possible. The utilization of a low-voltage power supply will be feasible and energy return will be easy to achieve. The first shunt circuit has been provided on the output side of the battery 10 to increase the voltage. Dropped across the battery 10 during motor driving. The second shunt circuit has been provided. On the output side of the first shunt-increment circuit section to increase the voltage from the section of the inverse 20 during energy return The 120 degree 20 conduction current source inverse section is provided on the output side of the second commutator section and the motor 38 is provided. On the output side of the section of the inverse 20, high-speed driving is possible. The utilization of a low-voltage power supply will be feasible and energy return will be easy to achieve. The first shunt circuit has been provided on the outside of the battery 10 to increase the voltage. Dropped across the battery 10 during motor driving. The second shunt circuit has been provided. On the output side of the first shunt-increment circuit section to increase the voltage from the section of the inverse 20 during energy return The 120 degree 20 conduction current source inverse section is provided on the output side of the second commutator section and the motor 38 is provided. on the output side of the section of the inverse 20

Claims (8)

Disclaimers (all) that will not appear on the advertisement page: 1.Motor drive tool Which includes DC power supply The chopping cycle - add one. Which will increase the voltage of the DC power source to provide There is a DC power of the inverse section during the time at which the motor is driven and the second inverse-gain segment. Designed to increase the DC voltage of the part of the An inversion to return power to the DC power place during the power return time. Return of the motor The portion of the inverse configuration, a configurable 120 ° current source. To convert the DC power of the inverse portion to a multiphase AC power. To drive the motor And to convert multi-phase AC power to DC power To return the electric power of the motor and diode with anode connected between the reactants of The second cut-off circuit. And the positive side, the direct current of the inverse part, with the cathode connected side The positive of the capacitor of the second-boost chopping circuit part, and the inverse of the rising voltage suppression. During the interruption of the inverse of the current of the gate. 2.Motor drive tool Which includes The chopping cycle - add one. That is configured to increase the voltage of the power supply. External direct current electrically connected To provide the DC power of the inverse section During the time when the motor was driven 120 ° inverse section configured for power conversion The direct current of the inverse section is multiphase AC power to drive the motor and to convert the multi-phase AC power to the DC power. To restore the power of the motor and the second reduction-boost circuit. That is configured to increase the DC voltage of the part of the Inversion to return power to external DC power source during motor reversal. 3. Motor drive equipment as requested to be used, the rights of item 1 or 2, where part of The inverse for 120 ° conductivity belongs to the inverse of the current source. 4. The motor drive apparatus hereby assumes one of the preceding claims 1 to 3, whereby the motor drive device is further equipped with a diode with a connected anode. Between the reactor of the second-boost chopping circuit section and the positive side, the DC of the inverse section, which has a cathode connected to the positive side of the capacitor of the second-boost chopping part, and the chopping-up part. Rises of the voltage on the inverse portion during the stopping of the gate current of Part of the inverse 5. Motor drive equipment, as requested in any of the preceding claims 1 to 4, where, in the low-speed motor drive area where there is no need to increase the pressure of DC power supply The operation to increase the voltage of the lower-boost chopping part of the first Has been halted 6. Motor drive equipment as requested in any of the preceding Claims 1 to 4, where at least one of the Or greater than the number of motor rotations, the motor current Motor terminal voltage Motor temperature DC voltage Of the inverse part to initiate the operation to increase the pressure has been set If the work order value, the detection value, the estimation value of the number of motor rotations, the work order value or the detection value of the motor current, the work order value or the detection value of the voltage Motor bracket terminal The detection value of the motor temperature Or the detection value of The DC voltage of the part of the inverse is equal to Or more than this setting As for the chopping cycle, reduce - add which one has been stimulated And the feedback control has been initiated in order to provide voltage The DC current added by the reduction-boost circuit section where one becomes the predetermined voltage. 7. Motor drive equipment, as requested in any of the preceding claims 1 to 4, where the work order value of the DC voltage added by the first-in-the-commute circuit section. Has been set according to at least one type Or greater than the detection value of the work order or the estimation of the number of motor rotations, the detection value or the order of the current Power of motor Motor temperature detection value, detection value or voltage command value Motor terminal The detection value of the DC voltage of the inverse section and the motor terminal control. The detection value of the DC voltage of the inverse section and the feedback control has been performed to achieve In order to provide an additional DC voltage By the chopping cycle, reducing - adding one Provide this job order value 8. Motor drive equipment as requested in any of the preceding claims 1 to 7, provided that if the number of motor turns increases And the induction voltage of the motor becomes equal to or higher than the increased DC voltage of the reduced-boost chopping part at one, the action of the reduced-boost chopping part at one has been interrupted.