To maintain an intermediate voltage at a proper value by supplying desired power to a power bus even in the case where power supply from a supply source of a high output priority becomes impossible.SOLUTION: A power conditioner includes a control section by which an output voltage of a supply source of a high output priority among multiple supply sources is set in such a manner that power is supplied to a power bus and the output priority of the output voltage becomes higher than an output voltage of a supply source of a low output priority on the basis of predetermined output priorities, and a supply source to supply power to the power bus is selected and controlled. When it is determined that a supply source of a high output priority is in an output disabled state, the control section boosts an output voltage of a supply source whose output priority is low and which is in an output enabled state, to an output voltage of the supply source for which the output disabled state is determined and the output priority is high, and supplies power from the supply source of the low output priority to the power bus.SELECTED DRAWING: Figure 3
【課題】出力優先順位が高い供給源からの電力供給が不能となった場合においても、電力バスに所望の電力を供給し、中間電圧を適正な値に維持する。【解決手段】予め決定された出力優先順位に基づいて、電力バスへ電力供給されるように複数の供給源のうち出力優先順位が高い供給源の出力電圧を出力優先順位が低い供給源の出力電圧よりも高くなるように設定するとともに、電力バスへ電力供給させる供給源を選択し、制御する制御部を含み、制御部は、出力優先順位が高い供給源が出力不可状態と判断したときに、出力優先順位を維持したまま、出力優先順位が低く、かつ出力可能状態にある供給源の出力電圧を出力不可状態と判断された出力優先順位が高い供給源の出力電圧にまで昇圧させ、その出力優先順位が低い供給源から電力バスに電力供給させる。【選択図】図3
POWER CONDITIONER AND POWER STORAGE SYSTEM
パワーコンディショナおよび蓄電システム
2020-01-09
Patent
Electronic Resource
Japanese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
CHARGE-DISCHARGE MANAGEMENT DEVICE, POWER CONDITIONER, POWER STORAGE DEVICE, AND PROGRAM
European Patent Office | 2015
|