JPS61165099U - - Google Patents
Info
- Publication number
- JPS61165099U JPS61165099U JP1985029810U JP2981085U JPS61165099U JP S61165099 U JPS61165099 U JP S61165099U JP 1985029810 U JP1985029810 U JP 1985029810U JP 2981085 U JP2981085 U JP 2981085U JP S61165099 U JPS61165099 U JP S61165099U
- Authority
- JP
- Japan
- Prior art keywords
- load
- solar cell
- output
- frequency inverter
- constant frequency
- 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 2
- 230000002265 prevention Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Control Of Ac Motors In General (AREA)
Description
第１図Ａ，Ｂは本考案の１実施例を示す空運転
防止システムのブロツク構成図及び制御回路の詳
細構成図である。第２図は従来のポンプ駆動系の
ブロツク構成図である。第３図は第２図のポンプ
駆動系の電源に太陽電池を用いた場合のブロツク
構成図である。
２…交流モータ、３…ポンプ、８…太陽電池、
９…ＶＶＶＦインバータ、１０…制御回路、１１
…センサ部、１３…定電圧制御回路部、１４…定
周波数インバータ部、１５…水位検出制御回路部
。
FIGS. 1A and 1B are a block diagram of a dry running prevention system and a detailed diagram of a control circuit showing an embodiment of the present invention. FIG. 2 is a block diagram of a conventional pump drive system. FIG. 3 is a block configuration diagram when a solar cell is used as the power source for the pump drive system shown in FIG. 2. 2...AC motor, 3...pump, 8...solar battery,
9...VVVF inverter, 10...control circuit, 11
...Sensor part, 13... Constant voltage control circuit part, 14... Constant frequency inverter part, 15... Water level detection control circuit part.
Claims (1)
タへ入力し、前記太陽電池によつて運転される負
荷の無負荷状態を検出する交流センサ部の検出信
号を前記定周波数インバータの出力で発生させる
制御回路で前記負荷への給電を制御することを特
徴とする空運転防止システム。 A control circuit that inputs the output of the solar cell at a constant voltage to a constant frequency inverter, and generates a detection signal of an AC sensor unit using the output of the constant frequency inverter to detect a no-load state of a load operated by the solar cell. A dry running prevention system characterized in that the power supply to the load is controlled by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985029810U JPS61165099U (en) | 1985-02-28 | 1985-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985029810U JPS61165099U (en) | 1985-02-28 | 1985-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61165099U true JPS61165099U (en) | 1986-10-13 |
Family
ID=30528951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985029810U Pending JPS61165099U (en) | 1985-02-28 | 1985-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61165099U (en) |
-
1985
- 1985-02-28 JP JP1985029810U patent/JPS61165099U/ja active Pending