PROBLEM TO BE SOLVED: To provide a protection device, capable of detecting a switch failure, and a transformation system having the protection system.SOLUTION: A protection system 13 includes an FET 30 on a current path flowing, when a DC voltage is applied between terminals 10, 11, between the terminals 10, 11 through a DCDC converter 12. The FET 30 becomes ON when the application direction of the DC voltage applied between the terminals 10, 11 is one direction, whereas becomes OFF when the application direction of the DC voltage is another direction. When the application direction of the DC voltage applied between the terminals 10, 11 is the one direction, a control unit 35 detects whether or not the FET 30 is in failure.
【課題】スイッチの故障を検知することができる保護装置、及び、該保護装置を備える変圧システムの提供。【解決手段】保護装置13では、端子10,11間に直流電圧を印加した場合に、DCDCコンバータ12を介して端子10,11間を流れる電流の経路にFET30が設けられている。FET30は、端子10,11間に印加される直流電圧の印加方向が一方向である場合にオンとなり、直流電圧の印加方向が他方向である場合にオフとなる。また、端子10,11間に印加される直流電圧の印加方向が一方向である場合において制御部35はFET30が故障しているか否かを検知する。【選択図】図1
PROTECTION DEVICE AND TRANSFORMATION SYSTEM
保護装置及び変圧システム
2015-05-28
Patent
Electronic Resource
Japanese
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
European Patent Office | 2024
|European Patent Office | 2024
|PROTECTION DEVICE, PROTECTION SYSTEM, AND PROGRAM FOR PROTECTION DEVICE
European Patent Office | 2024
|