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A technology of power output and excitation winding, which is applied in the output power conversion device, the conversion of DC power input to DC power output, and the conversion of AC power input to DC power output, etc., can solve problems such as high price

Inactive Publication Date: 2021-12-24
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the structure of Patent Document 1, a dedicated circuit for controlling the current flowing to the field winding is required, and accordingly, it becomes expensive.

Method used

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Embodiment Construction

[0015] Below, according to figure 1 One embodiment of a power output device embodying the present invention will be described.

[0016] Such as figure 1 As shown, the power output device 10 has: a motor (rotating electric machine) 11; a field winding 12; a capacitor 13; motor winding; the control unit 15 controls the inverter circuit 14 . The motor 11 has a plurality of motor windings of three or more phases connected in a star configuration. In this embodiment, the motor 11 has three-phase motor windings 16U, 16V, and 16W. The inverter circuit 14 converts the DC power from the capacitor 13 into AC power, and supplies the AC power to the motor windings 16U, 16V, and 16W. The inverter 17 is constituted by the capacitor 13 and the inverter circuit 14 .

[0017] The inverter circuit 14 includes three switching element pairs S1 - S2 , S3 - S4 , and S5 - S6 corresponding to the three-phase motor windings 16U, 16V, and 16W, respectively. Two switching elements S1 and S2 conn...

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PUM

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Abstract

The power output device includes: a field winding; a motor having a plurality of motor windings of three or more phases connected in star; a capacitor; and an inverter circuit configured to perform power conversion of the power supplied from the capacitor and convert the converted power It is supplied to a plurality of motor windings; a storage battery connected to the field winding; and a control unit. The inverter circuit has a plurality of switching element pairs respectively corresponding to the plurality of motor windings. The capacitors are connected to the positive and negative bus bars. The field winding is connected to the positive busbar or the negative busbar and the neutral point of the motor. The control unit is configured to control the plurality of switching element pairs so as to boost the voltage of the storage battery to charge the capacitor, and to supply a direct current to the field winding.

Description

technical field [0001] The present invention relates to a power output device, and specifically relates to a power output device including an armature winding (field winding) type motor. Background technique [0002] It is necessary to flow DC current to an armature winding (field winding) type motor. For this purpose, a dedicated circuit (switch, etc.) for flowing DC current has conventionally been required. For example, in the motor drive device disclosed in Patent Document 1, such as Figure 6 As shown, AC current is supplied to U-phase coil U, V-phase coil V, and W-phase coil W of motor 81 via inverter 82 . In addition, the field winding 83 of the electric motor 81 is provided on a current path between the battery B and the power line 84 , and functions as a reactor L1 of the boost converter 85 . Boost converter 85 includes a reactor L1, a switching element Q1, and a switching element Q2. The control device 86 calculates the target value of the input current to the pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P27/06H02P25/022
CPCH02P6/14H02P25/16H02P6/32H02P27/06Y02B70/10H02M1/346H02M3/1552H02M1/34H02M3/158H02M7/5387H02P25/22H02P2201/09H02P2209/01
Inventor 名和政道
Owner TOYOTA IND CORP