JPH036719U - - Google Patents
Info
- Publication number
- JPH036719U JPH036719U JP6587989U JP6587989U JPH036719U JP H036719 U JPH036719 U JP H036719U JP 6587989 U JP6587989 U JP 6587989U JP 6587989 U JP6587989 U JP 6587989U JP H036719 U JPH036719 U JP H036719U
- Authority
- JP
- Japan
- Prior art keywords
- reactive power
- multiplier
- control device
- output
- voltage signal
- 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
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Electrical Variables (AREA)
Description
第１図は本考案の実施例を示し、第２図は前記
第１図における電圧較正装置を示す。第３図は第
２図装置における各部波形図を示す。第４図は従
来の無効電力補償装置の制御装置を示す。
９……位相同期回路、１０……ゲートパルス発
生回路、１１……電圧較正装置、１２……ＲＯＭ
、１３……Ｄ／Ａ変換器、１４……乗算器、１５
……開平器、１６……乗算器。
FIG. 1 shows an embodiment of the present invention, and FIG. 2 shows the voltage calibration device shown in FIG. FIG. 3 shows waveform diagrams of various parts in the device shown in FIG. 2. FIG. 4 shows a conventional control device for a reactive power compensator. 9...Phase synchronization circuit, 10...Gate pulse generation circuit, 11...Voltage calibration device, 12...ROM
, 13... D/A converter, 14... Multiplier, 15
...square rooter, 16...multiplier.
Claims (1)
無効電力に基づいて無効電力を補償する無効電力
補償装置の制御装置において、該制御装置に前記
無効電力を検出するのに必要な系統電力を、系統
に接続され、商用周波同期パルスと高周波クロツ
クパルスを発生する位相同期回路と前記両パルス
を入力とし、基本波正弦波信号をあらかじめ書き
込んだ記憶素子と、前記記憶素子よりの出力をＤ
／Ａ変換する変換器と、各相系統電圧信号を２乗
する乗算器と前記乗算器出力の加算器と前記加算
器出力の開平器と、前記開平器よりの電圧信号と
前記Ｄ／Ａ変換器よりの基本波正弦波信号を乗算
する乗算器を備えて３相平均電圧信号を出力する
電圧較正装置を備えることを特徴とする無効電力
補償装置の制御装置。 In a control device for a reactive power compensator that detects reactive power of a load connected to a bus and compensates for the reactive power based on the reactive power, the control device is provided with system power necessary for detecting the reactive power. , a phase-locked circuit that is connected to the power grid and generates a commercial frequency synchronization pulse and a high-frequency clock pulse; a storage element that receives both pulses as input and has a fundamental sine wave signal written in advance; and an output from the storage element that is connected to a D
a converter for /A conversion, a multiplier for squaring each phase system voltage signal, an adder for the output of the multiplier, a square rooter for the output of the adder, and a voltage signal from the square rooter and the D/A conversion. 1. A control device for a reactive power compensator, comprising: a voltage calibration device that includes a multiplier that multiplies a fundamental sine wave signal from a power source and outputs a three-phase average voltage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6587989U JPH036719U (en) | 1989-06-06 | 1989-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6587989U JPH036719U (en) | 1989-06-06 | 1989-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH036719U true JPH036719U (en) | 1991-01-23 |
Family
ID=31598109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6587989U Pending JPH036719U (en) | 1989-06-06 | 1989-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036719U (en) |
-
1989
- 1989-06-06 JP JP6587989U patent/JPH036719U/ja active Pending
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