Electric power conversion device
A power conversion device and current technology, applied in circuit devices, output power conversion devices, electrical components, etc., can solve problems such as IGBT damage
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Embodiment 1
[0049] A first embodiment of the present invention will be described.
[0050] In Embodiment 1, a delta connection CMC is realized that significantly reduces the volume and weight of a reactor (reactor) as compared with the conventional delta connection CMC.
[0051] Below, use figure 1 The overall structure of Example 1 will be described.
[0052] The power conversion device 102 interconnected with the power system 101 is composed of a transformer 103 , a common core reactor 104 , a uv-phase cluster 109 , a vw-phase cluster 110 , and a wu-phase cluster 111 .
[0053] The common core reactor 104 is composed of uv-phase windings 105, vw-phase windings 106, wu-phase windings 107, and a common iron core 108. The uv, vw, and wu-phase windings 105-107 are polarized with magnetomotive force Wound on the common core 108.
[0054] The uv phase cluster 109 and the uv phase winding 105 are connected in series. Likewise, the vw-phase cluster 110 and the vw-phase winding 106 , and the...
Embodiment 2
[0133] Next, a second embodiment of the present invention will be described.
[0134] In Embodiment 2, instead of the unit cell 112 of Embodiment 1 figure 2 ,use Figure 7 A unit cell 701 is shown with an active power supply mechanism 702 connected.
[0135] Thus, in the second embodiment, effective electric power can be received between the power system 101 and the power conversion device 102 .
[0136] Hereinafter, the overall structure of Embodiment 2 will be described.
[0137] In Example 2, in figure 1 In the power conversion device 102 shown, the M unit cells 112 included in each of the clusters 109 to 111 are configured to be figure 2 The unit cell shown is replaced by Figure 7 A unit cell 701 is shown with an active power supply mechanism 702 connected thereto.
[0138] In addition, the whole structure is the same as that of Example 1 except for this point.
[0139] Below, refer to Figure 5 Control when the power conversion device 102 receives active power ...
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