JPH03101187U - - Google Patents
Info
- Publication number
- JPH03101187U JPH03101187U JP965690U JP965690U JPH03101187U JP H03101187 U JPH03101187 U JP H03101187U JP 965690 U JP965690 U JP 965690U JP 965690 U JP965690 U JP 965690U JP H03101187 U JPH03101187 U JP H03101187U
- Authority
- JP
- Japan
- Prior art keywords
- power
- output
- overcurrent detection
- overcurrent
- overcurrents caused
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000009499 grossing Methods 0.000 description 1
Description
第１図はこの考案の一実施例における過電流の
原因を区別するための、母線側、出力側の電流検
出器の検出パターンを示す図、第２図、第３図、
第４図はこの考案の一実施例、及び従来装置の実
施例を示すためのもので、第２図はインバータ装
置の構成図、第３図は出力短絡時の電流の流れを
示す図、第４図は上下短絡時の電流の流れを示す
図、第５図は従来の検出パターンを示す図である
。
図において、１……電流、２……コンバータ部
、３……平滑部、４，８，９，１０……電流検出
部、５，１１……コンパレータ、６，１２……過
電流レベル設定部、７……インバータ部、１４…
…インバータ駆動回路である。なお、図中、同一
符号は同一、または相当部分を示す。
Fig. 1 is a diagram showing the detection patterns of the current detectors on the bus side and output side for distinguishing the cause of overcurrent in one embodiment of this invention, Fig. 2, Fig. 3,
Figure 4 shows an embodiment of this invention and an example of a conventional device; Figure 2 is a configuration diagram of an inverter device; Figure 3 is a diagram showing the flow of current when the output is short-circuited; FIG. 4 is a diagram showing the flow of current when an upper and lower short circuit occurs, and FIG. 5 is a diagram showing a conventional detection pattern. In the figure, 1... current, 2... converter section, 3... smoothing section, 4, 8, 9, 10... current detection section, 5, 11... comparator, 6, 12... overcurrent level setting section , 7... Inverter section, 14...
...It is an inverter drive circuit. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
換するインバータ装置の保護機能である過電流検
出において、発生した過電流モードが交流電力の
出力から負荷への配線部分で短絡事故が発生、即
ち出力側短絡による過電流と、負荷の過重による
過電流と、直流電力から交流電力を得るためにあ
る複数個の半導体素子が破損したために直流側の
正極と負極が短絡される、即ち上下短絡による過
電流を母線側の過電流検出レベルと出力側の過電
流検出レベルを変えることによつて検出、区別、
判断することを特徴としたインバータ装置。 In overcurrent detection, which is a protection function of inverter equipment that converts DC power into AC power of arbitrary voltage and frequency, the overcurrent mode that occurs is a short-circuit accident in the wiring part from the output of AC power to the load, that is, the output There are overcurrents caused by side short circuits, overcurrents caused by overloading, and overcurrents caused by short circuits between the positive and negative poles on the DC side due to damage to multiple semiconductor elements used to obtain AC power from DC power. Detects and distinguishes current by changing the overcurrent detection level on the bus side and the overcurrent detection level on the output side.
An inverter device characterized by the ability to make decisions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP965690U JPH03101187U (en) | 1990-02-02 | 1990-02-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP965690U JPH03101187U (en) | 1990-02-02 | 1990-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03101187U true JPH03101187U (en) | 1991-10-22 |
Family
ID=31513245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP965690U Pending JPH03101187U (en) | 1990-02-02 | 1990-02-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03101187U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012518159A (en) * | 2009-02-16 | 2012-08-09 | ヴァレオ システム テルミク | Method for detecting short circuit and supply module using this method |
| US9628003B2 (en) | 2013-10-18 | 2017-04-18 | Mitsubishi Electric Corporation | Direct current power supply device, motor driving device, air conditioner, and refrigerator |
| US9692289B2 (en) | 2013-06-25 | 2017-06-27 | Mitsubishi Electric Corporation | DC power-supply device and refrigeration-cycle application device including the same |
| US9816737B2 (en) | 2013-10-29 | 2017-11-14 | Mitsubishi Electric Corporation | DC power-supply device and refrigeration cycle device |
| US9960703B2 (en) | 2013-09-06 | 2018-05-01 | Mitsubishi Electric Corporation | DC power-supply device and refrigeration-cycle application device including the same |
-
1990
- 1990-02-02 JP JP965690U patent/JPH03101187U/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012518159A (en) * | 2009-02-16 | 2012-08-09 | ヴァレオ システム テルミク | Method for detecting short circuit and supply module using this method |
| US9692289B2 (en) | 2013-06-25 | 2017-06-27 | Mitsubishi Electric Corporation | DC power-supply device and refrigeration-cycle application device including the same |
| US9960703B2 (en) | 2013-09-06 | 2018-05-01 | Mitsubishi Electric Corporation | DC power-supply device and refrigeration-cycle application device including the same |
| US9628003B2 (en) | 2013-10-18 | 2017-04-18 | Mitsubishi Electric Corporation | Direct current power supply device, motor driving device, air conditioner, and refrigerator |
| US9816737B2 (en) | 2013-10-29 | 2017-11-14 | Mitsubishi Electric Corporation | DC power-supply device and refrigeration cycle device |
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