Active clamping three-level inverter

Abstract

The invention discloses an active clamping three-level inverter, which comprises a shell and a main loop unit, and is characterized in that the shell is provided with an openable operation panel; the main loop unit comprises an incoming line laminated busbar, a main copper bar, a magnetic ring assembly, a main loop laminated busbar, two EMI filter plates, a first copper bar and a second copper bar, the incoming line laminated busbar is connected with the main loop laminated busbar through the main copper bar, the main copper bar penetrates through the magnetic ring assembly, one EMI filter plate is detachably connected with the incoming line laminated busbar through the first copper bar, and the other EMI filter plate is detachably connected with the magnetic ring assembly through the second copper bar. The other EMI filter board is detachably connected with the main loop laminated busbar through a second copper bar, and the first copper bar and the second copper bar are arranged close to the operation panel. Compared with the prior art, the active clamping three-level inverter provided by the invention is provided with the magnetic ring assembly and the EMI filter plate, so that strong current interference can be reduced, and the electromagnetic compatibility of the whole inverter is improved; and meanwhile, the first copper bar and the second copper bar are close to the operation panel and are convenient to disassemble, so that the debugging and mounting convenience of the inverter is improved.

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