To provide a high voltage direct current feeding system capable of improving efficiency of energy utilization in which the regenerative electric power obtained by regeneration brake is efficiently supplied to an electric vehicle traveling in a distant place, and the generation of a cyclic current flowing between a direct current feeder and a high voltage direct current feeder is suppressed, and thereby the regenerative electric power is utilized effectively.SOLUTION: A high voltage direct current feeding system of the present invention includes: a direct current feeder where a direct current feeding voltage is supplied, and direct current power is supplied to an electric vehicle by the direct current feeding voltage; a high voltage direct current feeder arranged in parallel to the direct current feeder, and having a direct current feeding high voltage being not less than the direct current feeding voltage of the direct current feeder; and a power conversion apparatus interposed between the direct current feeder and the high voltage direct current feeder at intervals, and lending electric power between the direct current feeder and the high voltage direct current feeder. The power conversion apparatus performs control of increasing and decreasing the direct current feeding high voltage of the high voltage direct current feeder in response to the change of the direct current feeding voltage of the direct current feeder.SELECTED DRAWING: Figure 1
【課題】回生ブレーキにより得られた回生電力を遠方で走行する電気車へ効率よく供給し、かつ直流き電線と高圧直流き電線との間を流れる循環電流の発生を抑制し、回生電力を有効活用することにより、エネルギー利用の効率を向上させる高電圧直流き電システムを提供する。【解決手段】本発明の高電圧直流き電システムは、直流き電電圧が供給され、当該直流き電電圧により電気車に対して直流電力を供給する直流き電線と、直流き電線と並行に配設され、直流き電線の直流き電電圧以上の直流き電高電圧の高電圧直流き電線と、直流き電線と前記高電圧直流き電線との間に間隔を置いて介挿され、直流き電線及び高電圧直流き電線間において電力を融通する電力変換装置とを備え、電力変換装置が、直流き電線の直流き電電圧の変化に対応して、高電圧直流き電線の直流き電高電圧を増減する制御を行なう。【選択図】図1
HIGH VOLTAGE DIRECT CURRENT FEEDING SYSTEM, POWER CONVERSION APPARATUS AND HIGH VOLTAGE DIRECT CURRENT FEEDING METHOD
高電圧直流き電システム、電力変換装置及び高電圧直流き電方法
2020-03-19
Patent
Elektronische Ressource
Japanisch
IPC: | B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
Europäisches Patentamt | 2021
|Direct current-direct current voltage conversion device and fuel cell power system
Europäisches Patentamt | 2020
|Europäisches Patentamt | 2017
|