B - Operations – Transporting – 60 – L
Patent
B - Operations, Transporting
60
L
B60L 9/18 (2006.01) B60L 9/00 (2006.01) B60L 15/00 (2006.01) H02M 1/12 (2006.01)
Patent
CA 2355456
The present invention provides a controller for driving an electric vehicle in- cluding a small filter having sufficient attenuation characteristics in order to avoid the adverse influence of the higher harmonic component contained in the return wire current flowing through a rail exerted on the safety equipment for railway or the like provided therein. In a controller for driving an electric vehicle including an inverter 6 supplied with the electric power through a D.C. filter 5, in the D.C. filter 5, two reactors 51a and 51b having the magnetic coupling are connected in series to ensure effe c- tively an inductance, to realize miniaturization and also to make the near- place in- stallation possible. A first capacitor 52a is connected between output terminals, and to the series connection point of the two reactors, a third reactor 53 having an indu c- tance value roughly equal to the mutual inductance thereof and a second capacitor 52b which are connected in series are connected to cancel the negative equivalent inductance provided by the magnetic coupling to prevent the adverse influence of the magnetic coupling, whereby the two-stage filter characteristics are effectively utilized and a substantial attenuation of the higher harmonic components is realized.
Kumano Masayoshi
Maruyama Takafumi
Shikata Susumu
Marks & Clerk
Mitsubishi Denki Kabushiki Kaisha
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