To provide a high voltage direct current feeding system which efficiently supplies regenerative electric power by a regenerative brake to a distant electric vehicle, suppresses increase in capacity of a power conversion device for converting a voltage of the regenerative power, suppresses each increase in price and an installation area, and enables installation of a facility of performing power interchange by the generative power.SOLUTION: A high voltage direct current feeding system includes: a direct current feeder for supplying direct current power to an electric vehicle by a direct current feeding voltage; a high voltage direct current feeder of a direct current feeding high voltage equal to or higher than a direct current feeding voltage of a direct current feeder arranged in parallel; and a power conversion device which is interposed between the direct current feeder and the high voltage direct current feeder at an interval, and performs power interchange between the direct current feeder and the high voltage direct current feeder. The power conversion device subtracts or adds an adjustment voltage corresponding to load current flowing in the power conversion device from the direct current feeding voltage corresponding to change in the direct current feeding voltage of the direct current feeder, uses a correction direct current feeding voltage obtained by correcting the direct current feeding voltage, and controls the direct current feeding high voltage of the high voltage direct current feeder.SELECTED DRAWING: Figure 1
【課題】回生ブレーキによる回生電力を遠方の電気車へ効率よく供給し、かつ回生電力の電圧変換を行う電力変換装置の大容量化を抑え、価格及び設置面積の各々の増加を抑制した、回生電力による電力融通を行う設備の設置を可能とす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、直流き電電圧により電気車に直流電力を供給する直流き電線と、並行に配設された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、直流き電線と高電圧直流き電線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で電力を融通する電力変換装置を備え、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、前記電力変換装置に流れる負荷電流に対応する調整電圧を前記直流き電電圧から減算または加算し、当該直流き電電圧を補正した補正直流き電電圧を用い、高電圧直流き電線の直流き電高電圧を制御する。【選択図】図1
HIGH VOLTAGE DIRECT CURRENT FEEDING SYSTEM, POWER CONVERSION DEVICE 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
2021-07-26
Patent
Electronic Resource
Japanese
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 |
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