POWER TRANSMISSION DEVICE AND POWER TRANSMISSION SYSTEM
POWER TRANSMISSION DEVICE AND POWER TRANSMISSION SYSTEM
- Neue Suche nach: MISAWA TAKAHIRO
- Neue Suche nach: MISAWA TAKAHIRO
PROBLEM TO BE SOLVED: To grasp a current change in a power transmission coil with high accuracy by extremum search control to improve the search accuracy of an optimal frequency by the extremum search control, in a power transmission device which transmits power to a power reception device in a non-contact manner and a power transmission system including the power transmission device.SOLUTION: A power supply ECU 250 includes: a first control unit 400 which executes transmission power control; and a second control unit 500 which executes the minimum control of a power transmission coil current. The second control unit 500 vibrates a transmission power frequency to execute the extremum search control to search for a frequency causing a smallest current to flow through the power transmission coil. The power supply ECU 250 further includes a third control unit 600 which corrects a duty in synchronization with the frequency vibration in a manner to suppress a transmission power vibration caused by the frequency vibration.SELECTED DRAWING: Figure 4
【課題】受電装置へ非接触で送電する送電装置及びそれを備える電力伝送システムにおいて、極値探索制御による送電コイルの電流変化を精度よく把握して極値探索制御による最適周波数の探索精度を向上させる。【解決手段】電源ＥＣＵ２５０は、送電電力制御を実行する第１の制御部４００と、送電コイル電流最小制御を実行する第２の制御部５００とを含む。第２の制御部５００は、送電電力の周波数を振動させることによって、送電コイルに流れる電流が最小となる周波数を探索する極値探索制御を実行する。電源ＥＣＵ２５０は、さらに、周波数の振動による送電電力の振動を抑制するように、周波数の振動に同期してデューティを補正する第３の制御部６００を含む。【選択図】図４
Dokumentinformationen
POWER TRANSMISSION DEVICE AND POWER TRANSMISSION SYSTEM
送電装置及び電力伝送システム
2017-07-27
Patent
Elektronische Ressource
Japanisch
| 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 / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
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