JPH03127451U - - Google Patents
Info
- Publication number
- JPH03127451U JPH03127451U JP3669490U JP3669490U JPH03127451U JP H03127451 U JPH03127451 U JP H03127451U JP 3669490 U JP3669490 U JP 3669490U JP 3669490 U JP3669490 U JP 3669490U JP H03127451 U JPH03127451 U JP H03127451U
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- current
- filters
- differential
- current transformers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims 2
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来の並列運転インバータの回路図である。
１，２……ＰＷＭインバータ、３，４……搬送
波除去フイルタ、７……負荷、８，９……電流変
成器、１０……リアクトル、１１……コンデンサ
、１２……抵抗。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is a circuit diagram of a conventional parallel operation inverter. 1, 2... PWM inverter, 3, 4... Carrier removal filter, 7... Load, 8, 9... Current transformer, 10... Reactor, 11... Capacitor, 12... Resistor.
Claims (1)
除去フイルタを介して並列接続して負荷に給電す
るインバータの並列運転装置において、前記両フ
イルタから負荷側へ流れる電流を一次入力とし二
次巻線を差動接続した一対の電流変成器と、この
電流変成器の差動接続端間に接続され前記インバ
ータの搬送波周波に一致する共振周波数を持つ共
振回路とを備えたことを特徴とするＰＷＭインバ
ータの横流防止回路。 In an inverter parallel operation device that supplies power to a load by connecting the output ends of two PWM inverters in parallel through respective carrier removal filters, the current flowing from both filters to the load side is used as the primary input, and the secondary winding is connected to the differential winding. A cross-current PWM inverter comprising: a pair of dynamically connected current transformers; and a resonant circuit connected between the differential connection ends of the current transformers and having a resonant frequency matching the carrier frequency of the inverter. prevention circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3669490U JPH03127451U (en) | 1990-04-05 | 1990-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3669490U JPH03127451U (en) | 1990-04-05 | 1990-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03127451U true JPH03127451U (en) | 1991-12-20 |
Family
ID=31543147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3669490U Pending JPH03127451U (en) | 1990-04-05 | 1990-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03127451U (en) |
-
1990
- 1990-04-05 JP JP3669490U patent/JPH03127451U/ja active Pending
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