FILTER DEVICE AND ELECTRIC VEHICLE DRIVE CONTROLLER

• Main Authors: MURAHATA AKIHIRO, YONEOKA TAKEHIRO, JIMICHI TAKUSHI, YOKOZUTSUMI RYO, TAKUNO TSUGUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 13.08.2015
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRONIC CIRCUITRY; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; RESONATORS; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To obtain a filter device capable of removing failure quickly, and operating an inverter after removing the failure.SOLUTION: A filter device 5 for removing a noise current generated from an inverter 6 includes a first filter capacitor 52a provided in parallel with the DC section of the inverter 6, a first filter reactor 51a provided between the high potential side of the first filter capacitor 52a and a stringing 1, i.e., a DC power supply source, a fuse 53 as a circuit disconnecting section that is disconnected when a current larger than a current rating flows therethrough, and a series circuit 56 of a second filter reactor 51b of inductance element, and a second filter capacitor 52b of a capacitance element, the series circuit 56 having one end connected with the low potential side of the first filter capacitor 52a, and connected with one end of the first filter reactor 51a. 【課題】故障を速やかに除去し、故障除去後にインバータを動作させることを可能とするフィルタ装置を得ること。【解決手段】インバータ６が発生するノイズ電流を除去するフィルタ装置５は、インバータ６の直流部と並列に設けられた第１のフィルタコンデンサ５２ａと、第１のフィルタコンデンサ５２ａの高電位側と直流電力の電力供給源である架線１との間に設けられた第１のフィルタリアクトル５１ａと、電流定格より大きい電流が流れると切になる回路切断部としてのヒューズ５３、インダクタンス要素である第２のフィルタリアクトル５１ｂおよびキャパシタンス要素である第２のフィルタコンデンサ５２ｂとを直列に接続した直列回路部であって、その一端が第１のフィルタコンデンサ５２ａの低電位側に接続され、第１のフィルタリアクトル５１ａの一端が接続される直列回路部５６と、を備える。【選択図】図１