ROTARY MACHINE DRIVE SYSTEM AND VEHICLE

• Main Authors: NISHIHAMA KAZUO, TAKAHASHI AKIFUMI, HOSHINO KATSUHIRO, MAEKAWA NORIYUKI
• Format: Patent
• Language: English; Japanese
• Published: 15.04.2021
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

To provide a highly reliable rotary machine drive system capable of suppressing wear of an electric contact at the time of switching sliding with a relatively simple configuration in a rotary machine drive system having a winding switching device.SOLUTION: A rotary machine drive system includes: a rotary machine having a plurality of windings; an inverter device for driving the rotary machine at a variable speed; and a winding switching device for switching connection of the plurality of windings. The winding switching device includes: winding terminals; semi-movable element having short circuit portions facing the winding terminals and a sliding portion having first projecting portions provided on a surface opposite to a surface having the short circuit portions; a movable element having a sliding portion on which second projecting portions are provided on a surface facing the sliding portion of the semi-movable element. Connection of the plurality of windings are switched by sliding the movable element with respect to the semi-movable element to change connection of the winding terminals and the short circuit portions.SELECTED DRAWING: Figure 3 【課題】巻線切替装置を備えた回転機駆動システムにおいて、比較的簡単な構成で、切替摺動時の電気接点の摩耗を抑制可能な信頼性の高い回転機駆動システムを提供する。【解決手段】複数の巻線を有する回転機と、前記回転機を可変速運転するインバータ装置と、前記複数の巻線の接続を切り替える巻線切替装置と、を備え、前記巻線切替装置は、巻線端子と、前記巻線端子と対向する短絡部を有し、かつ、前記短絡部を有する面の反対側の面に第１の凸部が設けられた摺動部を有するセミ可動子と、前記セミ可動子の摺動部と対向し、前記セミ可動子の摺動部と対向する面に第２の凸部が設けられた摺動部を有する可動子と、を有し、前記セミ可動子に対し前記可動子をスライドさせることで、前記巻線端子と前記短絡部との接続を変更し、前記複数の巻線の接続を切り替えることを特徴とする。【選択図】 図３