Power conversion device
A power conversion device and power technology, applied in the direction of converting irreversible AC power input into DC power output, etc., to achieve the effects of high harmonic countermeasures, miniaturization and simple structure
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Embodiment approach 1
[0020] figure 1 It is a configuration diagram showing the configuration of the power conversion device according to Embodiment 1 of the present invention. Such as figure 1 As shown, the power conversion device has a three-phase diode rectifier 2 , a buck-boost converter 3 , a low-pass filter (LPF: Low-Pass Filter) 5 , and a three-phase voltage-type inverter 6 .
[0021] Such as figure 1 As shown, the power conversion device is connected to the system power supply 1 . The system power supply 1 is composed of a commercial power supply, that is, a three-phase AC power supply. The power converter converts the commercial three-phase AC power from the system power supply 1 into the three-phase AC power required by the motor 7 to drive the motor 7 . Here, a description will be given assuming that the drive target of the power conversion device is the electric motor 7 .
[0022] A three-phase diode rectifier 2 is connected to the system power supply 1 . The three-phase diode rec...
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Abstract
Description
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Application Information
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