To provide a noise current leakage prevention structure, a noise current leakage prevention method, and an electric railway vehicle that are capable of suppressing noise leakage caused by the switching operation of a power conversion device.SOLUTION: A noise current leakage prevention structure comprises: a three-phase output line 17 that transmits power between a power conversion device 16 electrically connected to a vehicle body 20 side and a main motor 18 electrically connected to a rail 21 side; a shield 25 that is applied to the three-phase output line 17; and connection lines 31a, 31b that are electrically connected to the shield 25 and connect the vehicle body 20 side and the rail 21 side via a capacitor 30.SELECTED DRAWING: Figure 2
【課題】電力変換装置のスイッチング動作に起因したノイズの漏洩を抑制することができるノイズ電流漏洩防止構造、ノイズ電流漏洩防止方法および電気鉄道車両を提供することができる。【解決手段】電気的に車体20側に接続する電力変換装置16と電気的にレール21側に接続する主電動機18との間で送電を行う3相出力線17と、3相出力線17に施されるシールド25と、シールド25に電気的に接続するとともに、車体20側とレール21側とをコンデンサ30を介して接続する接続線31a、31bと、を備えるノイズ電流漏洩防止構造。【選択図】図2
NOISE CURRENT LEAKAGE PREVENTION STRUCTURE, NOISE CURRENT LEAKAGE PREVENTION METHOD AND ELECTRIC RAILWAY VEHICLE
ノイズ電流漏洩防止構造、ノイズ電流漏洩防止方法および電気鉄道車両
2024-05-14
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B61C Lokomotiven , LOCOMOTIVES / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / 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 |
Leakage current of electric railway track and calculation as to its prevention
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Engineering Index Backfile | 1929
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