PROBLEM TO BE SOLVED: To improve power efficiency of a power conversion device.SOLUTION: The power conversion device performs switching between two modes, a filter configuring mode and a regenerative power absorbing mode. In the filter configuring mode, a storage battery 122 is charged with each of supply power and regenerative power; a capacitor 121 is combined with predetermined inductance 121 of the storage battery 122 to configure a power filter for the storage battery 122. On the other hand, in the regenerative power absorbing mode, switching of a second switching part is performed to form a cut-off state between the capacitor 121 and the storage battery 122, charging the capacitor 121 with the supply power and regenerative power.SELECTED DRAWING: Figure 3
【課題】電力変換装置の電力効率を向上すること。【解決手段】電力変換装置は、フィルタ構成モードと回生電力吸収モードという2つのモードを切り替える。フィルタ構成モードでは、供給電力及び回生電力を各々蓄電池122にも蓄電させるとともに、キャパシタ121が蓄電池122の所定のインダクタンス121との組み合わせによって蓄電池122の電力フィルタを構成している。一方、回生電力吸収モードでは、第2の切換部を切り替えてキャパシタ121と蓄電池122との間を遮断状態とすることによって、供給電力及び回生電力をキャパシタ121に蓄電させている。【選択図】図3
POWER CONVERSION DEVICE, MOBILE DRIVE SYSTEM COMPRISING POWER CONVERSION DEVICE, AND POWER STORAGE SYSTEM
電力変換装置、電力変換装置を備える移動体の駆動システム及び電力貯蔵システム
2016-12-28
Patent
Electronic Resource
Japanese
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
Power conversion device, power conversion system, and power conversion method
European Patent Office | 2018
|POWER CONVERSION DEVICE, POWER CONVERSION SYSTEM, AND METHOD FOR CONTROLLING POWER CONVERSION DEVICE
European Patent Office | 2024
|POWER CONVERSION DEVICE, DRIVE DEVICE, AND POWER STEERING DEVICE
European Patent Office | 2019
|