JPH0454445U - - Google Patents
Info
- Publication number
- JPH0454445U JPH0454445U JP9699890U JP9699890U JPH0454445U JP H0454445 U JPH0454445 U JP H0454445U JP 9699890 U JP9699890 U JP 9699890U JP 9699890 U JP9699890 U JP 9699890U JP H0454445 U JPH0454445 U JP H0454445U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- inverter
- output current
- grid
- circuit
- 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
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Stand-By Power Supply Arrangements (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Description
第１図はこの考案の一実施例の直列補償型低下
変動補償装置の構成を示すブロツク図、第２図は
デジタルシグナルプロセツサの動作を示すフロー
チヤート、第３図はデジタルシグナルプロセツサ
の機能ブロツク図、第４図は直列補償型電圧低下
補償装置の従来例の構成を示すブロツク図、第５
図は第４図の各部のタイムチヤートである。
１……電力系統、２……負荷、３……インバー
タ回路、４……結合トランス、５……バイパスス
イツチ、１１……系統電圧検出回路、１２……同
期回路、１４……瞬時電圧低下検出回路、１６…
…三角波発生回路、１７……コンパレータ、１８
……補償作動制御回路、１９Ａ……点弧信号発生
回路、１９Ｂ……インバータ駆動回路、２０……
インバータ制御回路、２１……インバータ出力電
流検出回路、２２……Ａ／Ｄ変換器、２３……デ
ジタルシグナルプロセツサ、２３ａ……基準正弦
波作成機能、２３ｂ……偏磁補正電圧作成機能、
２３ｃ……第１の演算機能、２３ｄ……第２の演
算機能。
Fig. 1 is a block diagram showing the configuration of a series compensation type drop fluctuation compensator according to an embodiment of this invention, Fig. 2 is a flowchart showing the operation of the digital signal processor, and Fig. 3 is the function of the digital signal processor. 4 is a block diagram showing the configuration of a conventional example of a series compensation type voltage drop compensator, and FIG.
The figure is a time chart of each part of FIG. 4. 1... Power system, 2... Load, 3... Inverter circuit, 4... Coupling transformer, 5... Bypass switch, 11... System voltage detection circuit, 12... Synchronous circuit, 14... Instantaneous voltage drop detection Circuit, 16...
...Triangular wave generation circuit, 17...Comparator, 18
...Compensation operation control circuit, 19A...Ignition signal generation circuit, 19B...Inverter drive circuit, 20...
Inverter control circuit, 21... Inverter output current detection circuit, 22... A/D converter, 23... Digital signal processor, 23a... Reference sine wave creation function, 23b... Unbalanced magnetism correction voltage creation function,
23c...first calculation function, 23d...second calculation function.
Claims (1)
た結合トランスと、 この結合トランスの一次巻線に接続した電圧変
動補償用のインバータ回路と、 前記電力系統の系統電圧を検出して系統電圧対
応電圧を出力する系統電圧検出回路と、 前記インバータ回路の出力電流を検出してイン
バータ出力電流対応電圧を発生するインバータ出
力電流検出回路と、 前記電力系統の系統電圧と同相でかつ正常時電
圧に相当する振幅を有する基準正弦波電圧を作成
する基準正弦波作成機能と、前記インバータ出力
電流検出回路より出力されるインバータ出力電流
対応電圧中に含まれる直流分に応じて偏磁補正電
圧を作成する偏磁補正電圧作成機能と、前記基準
正弦波電圧から前記系統電圧対応電圧を減算して
差電圧を求める第１の演算機能と、前記第１の演
算機能により求められた差電圧から前記偏磁補正
電圧作成機能により求められた偏磁補正電圧を減
算して補償信号電圧を求める第２の演算機能とを
有するデジタルシグナルプロセツサと、 前記デジタルシグナルプロセツサの第２の演算
機能により求められた補償信号電圧に応じて前記
インバータ回路をスイツチング制御することによ
り前記インバータ回路から補償電圧を出力させる
インバータ制御回路とを備えた直列補償型電圧変
動補償装置。[Claims for Utility Model Registration] A coupling transformer in which a secondary winding is inserted in series between an electric power system and a load, an inverter circuit for voltage fluctuation compensation connected to the primary winding of this coupling transformer, and the electric power a grid voltage detection circuit that detects the grid voltage of the grid and outputs a voltage corresponding to the grid voltage; an inverter output current detection circuit that detects the output current of the inverter circuit and generates a voltage corresponding to the inverter output current; A reference sine wave creation function that creates a reference sine wave voltage that is in phase with the grid voltage and has an amplitude corresponding to the normal voltage, and a DC component included in the voltage corresponding to the inverter output current output from the inverter output current detection circuit. a bias correction voltage creation function that creates a bias correction voltage according to the voltage, a first calculation function that subtracts the system voltage corresponding voltage from the reference sine wave voltage to obtain a differential voltage, and the first calculation function. a second arithmetic function that obtains a compensation signal voltage by subtracting the bias correction voltage obtained by the bias correction voltage creation function from the differential voltage obtained by the above; and an inverter control circuit that outputs a compensation voltage from the inverter circuit by switching controlling the inverter circuit according to the compensation signal voltage obtained by the second calculation function of the series compensation type voltage fluctuation compensator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9699890U JPH0454445U (en) | 1990-09-14 | 1990-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9699890U JPH0454445U (en) | 1990-09-14 | 1990-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0454445U true JPH0454445U (en) | 1992-05-11 |
Family
ID=31836998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9699890U Pending JPH0454445U (en) | 1990-09-14 | 1990-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0454445U (en) |
-
1990
- 1990-09-14 JP JP9699890U patent/JPH0454445U/ja active Pending
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