DRIVING SYSTEM

• Main Authors: HAZEYAMA MORIYUKI, KOJIMA TETSUYA, KANEKO KENTA, TERAMOTO KOTA, SUZUKI TOSHIKI, YAMAZAKI HISANORI, HAMADA MASARU
• Format: Patent
• Language: English; Japanese
• Published: 08.05.2024
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROL OR REGULATION THEREOF; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

To provide a driving system with simple structure.SOLUTION: A driving system 1 includes a motor M1, a power converter 11, and a control unit 12. The motor M1 is a synchronous reluctance motor that is rotated by being supplied with electric power. The power conversion unit 11 includes a plurality of switching elements SW11, SW12, SW13, SW14, SW15, SW16, is directly connected to the motor M1, converts power supplied from a power supply into power to be supplied to the motor M1, and supplies the converted power to the motor M1. The control unit 12 controls the plurality of switching elements SW11, SW12, SW13, SW14, SW15, SW16 included in the power conversion unit 11. The motor M1, which is a synchronous reluctance motor, is a motor of a railcar having no permanent magnets, and does not generate a no-load induced voltage due to the permanent magnets when there is no-load rotation in a state where the power conversion unit 11 is stopped.SELECTED DRAWING: Figure 1 【課題】構造が簡易な駆動システムを提供する。【解決手段】駆動システム１は、モータＭ１と、電力変換部１１と、制御部１２と、を備える。モータＭ１は、電力の供給を受けて回転する同期リラクタンスモータである。電力変換部１１は、複数のスイッチング素子ＳＷ１１，ＳＷ１２，ＳＷ１３，ＳＷ１４，ＳＷ１５，ＳＷ１６を有し、モータＭ１に直接接続されて、電源から供給される電力をモータＭ１に供給するための電力に変換し、変換した電力をモータＭ１に供給する。制御部１２は、電力変換部１１が有する複数のスイッチング素子ＳＷ１１，ＳＷ１２，ＳＷ１３，ＳＷ１４，ＳＷ１５，ＳＷ１６を制御する。同期リラクタンスモータであるモータＭ１は、永久磁石を有さない鉄道車両の電動機であって、電力変換部１１が停止した状態における無負荷時の回転がある場合に、永久磁石に起因する無負荷誘起電圧を生じない。【選択図】図１