PROBLEM TO BE SOLVED: To strike a balance between acceleration performance and regeneration brake performance in a high-speed range and a loss reduction due to a harmonic current of an AC motor.SOLUTION: An electric power conversion system for a railway vehicle includes a step-up/step-down chopper device 4 on a DC side of an inverter device 6, controls the step-up/step-down chopper device 4 to lower a voltage on the DC side of the inverter device 6 when the inverter device 6 outputs the lowest power, and controls the step-up/step-down chopper device 4 to increase the voltage on the DC side of the inverter device 6 in accordance with an increase of the output power from the inverter device 6.SELECTED DRAWING: Figure 1
【課題】高速度域における加速性能及び回生ブレーキ性能と、交流電動機の高調波電流による損失低減を両立する。【解決手段】鉄道車両用の電力変換装置において、インバータ装置6の直流側に昇降圧チョッパ装置4を備え、インバータ装置6の出力が最も低いときは、インバータ装置6の直流側の電圧を昇降圧チョッパ装置4により低下させ、インバータ装置6の出力の増加に合わせてインバータ装置6の直流側の電圧を昇降圧チョッパ装置4により上昇させる。【選択図】図1
ELECTRIC POWER CONVERSION SYSTEM FOR RAILWAY VEHICLE AND RAILWAY VEHICLE INCLUDING THE SAME
鉄道車両用の電力変換装置及びこれを備えた鉄道車両
29.09.2016
Patent
Elektronische Ressource
Japanisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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