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Rotary Motor Controls

A technology for rotating electrical machines and control devices, which is used in motor control, AC motor control, battery/fuel cell control devices, etc., and can solve problems such as failure of inverter fail-safe operation.

Active Publication Date: 2019-07-19
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such a case, there is a possibility that the above-mentioned fail-safe operation cannot be properly performed on the inverter

Method used

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  • Rotary Motor Controls
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Examples

Experimental program
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Embodiment Construction

[0032] Hereinafter, a rotating electric machine control device according to the present embodiment will be described based on the drawings. Such as figure 1 As shown, the rotary electric machine control device 1 is configured to include an inverter control device 20 which controls a rotary electric machine drive device including an inverter 10 . The inverter 10 is connected to the high-voltage battery 2H (high-voltage direct-current power supply) as the first direct-current power supply, and is connected to the rotating electrical machine 80, and the multi-phase alternating current (here, a three-phase alternating current) between the direct current of the high-voltage battery 2H and the rotating electrical machine 80 is connected. ) A power conversion device that converts power between. In the present embodiment, inverter 10 is connected to high-voltage battery 2H via contactor 9 . The inverter control device 20 is connected to a low-voltage battery 2L (low-voltage DC powe...

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PUM

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Abstract

Even if the electric power supply to the inverter control device is cut off, the rotating electric machine drive device including the inverter is appropriately performed fail-safe control. A rotary electric machine control device (1) having as a control object a rotary electric machine drive device (1) provided with an inverter (10) connected to a first DC power supply (2H) and an AC rotary electric machine (80) to convert power An inverter control device (20) for switching the switching element (3) constituting the inverter (10) with electric power supplied by two DC power sources (2L), and performing fail-safe control. When the electric power supplied from the second DC power supply (2L) to the inverter control device (20) decreases, the rotary electric machine control device (1) receives the first DC power supply (2H) as the power source from the backup power supply ( 2B) Power is supplied to the inverter control device (20) for fail-safe control.

Description

technical field [0001] The present invention relates to a rotating electrical machine control device for driving and controlling an AC rotating electrical machine. Background technique [0002] For example, in electric vehicles, hybrid vehicles, etc., an inverter is provided between an AC rotating electric machine that drives wheels and a high-voltage DC power supply, and the inverter converts electric power between DC and AC. In many cases, the inverter is switched and controlled by an inverter control device that is operated by supplying electric power from a low-voltage direct-current power supply that is lower in voltage than the high-voltage direct-current power supply. In addition, there are cases where a switching device (contactor) is provided between the high-voltage DC power supply and the inverter. When the contact of the contactor is closed, it becomes a conduction state, and the high-voltage DC power supply is electrically connected to the inverter (and the rot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P27/06H02P29/00
CPCH02P27/06H02P29/00B60L3/003B60L3/0046B60L7/18B60L15/02B60L15/2045Y02T10/72B60L50/15B60L50/16B60L58/20H02P29/032Y02T10/64Y02T10/70Y02T10/7072H02P6/12H02P6/14
Inventor 苏布拉塔·萨哈堀田丰中村恭士
Owner AISIN AW CO LTD