PROBLEM TO BE SOLVED: To reduce a ripple generated in a load current, the ripple being caused by a zero cross of a voltage of AC power.SOLUTION: A power transmitter 2 comprises: a power converter 26 for converting AC power Pac1 supplied from a power source PS, to DC power Pdc; a first detector 23 for detecting a current Idc of the DC power Pdc; an FB signal generator 28 for generating an FB signal on the basis of the current Idc; and a first controller 25 for performing feedback control, on the basis of the FB signal, on AC power Pac2 to be supplied to a power receiver 3. The FB signal generator 28 generates a cancel waveform for reducing a ripple generated in the current Idc, the ripple being caused by a zero cross of a voltage Vac1 of the AC power Pac1; and generates the FB signal on the basis of the current Idc and the cancel waveform.SELECTED DRAWING: Figure 2
【課題】交流電力の電圧のゼロクロスに起因して負荷電流に生じるリップルを低減すること。【解決手段】送電装置2は、電源PSから供給される交流電力Pac1を直流電力Pdcに変換する電力変換器26と、直流電力Pdcの電流Idcを検出する第1検出器23と、電流Idcに基づいて、FB信号を生成するFB信号生成器28と、FB信号に基づいて、受電装置3に供給する交流電力Pac2のフィードバック制御を行う第1制御器25と、を備え、FB信号生成器28は、交流電力Pac1の電圧Vac1のゼロクロスに起因して電流Idcに生じるリップルを低減するためのキャンセル波形を生成し、電流Idc、及びキャンセル波形に基づいて、FB信号を生成する。【選択図】図2
POWER TRANSMITTER AND NON-CONTACT POWER SUPPLY SYSTEM
送電装置及び非接触給電システム
28.09.2017
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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