JPH01143252U - - Google Patents
Info
- Publication number
- JPH01143252U JPH01143252U JP1988037897U JP3789788U JPH01143252U JP H01143252 U JPH01143252 U JP H01143252U JP 1988037897 U JP1988037897 U JP 1988037897U JP 3789788 U JP3789788 U JP 3789788U JP H01143252 U JPH01143252 U JP H01143252U
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- phase detection
- detection circuit
- load
- 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.)
- Granted
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Power Conversion In General (AREA)
Description
第１図は本考案のアクテイブフイルタに用いる
制御部の一例を示すブロツク図、第２図は本考案
を適用する電源装置のアクテイブフイルタの回路
図、第３図および第４図は本考案の実施例による
電圧、電流波形図で第３図Ａは負荷接続点電圧の
波形図、第３図Ｂは電源電流波形図、第４図Ａは
負荷電流波形図、第４図Ｂはインバータの出力電
流波形図、第５図は従来のアクテイブフイルタの
制御部のブロツク図、第６図および第７図は従来
のアクテイブフイルタを接続したときにおける電
圧、電流波形図で第６図Ａは負荷接続点電圧の波
形図、第６図Ｂは電源電流波形図、第７図Ａは負
荷電流波形図、第７図Ｂはインバータの出力電流
波形図である。
１０……電源、２０……負荷、３０……インバ
ータ、４０……制御部、４１……位相検出回路、
４２……演算回路、４３……突合わせ部、４５…
…比較部、４６……ハイパスフイルタ。
Fig. 1 is a block diagram showing an example of a control unit used in the active filter of the present invention, Fig. 2 is a circuit diagram of an active filter of a power supply device to which the present invention is applied, and Figs. 3 and 4 are implementations of the present invention. Examples of voltage and current waveform diagrams: Figure 3A is a waveform diagram of the load connection point voltage, Figure 3B is a power supply current waveform diagram, Figure 4A is a load current waveform diagram, and Figure 4B is the inverter output current. Waveform diagrams. Figure 5 is a block diagram of the control section of a conventional active filter. Figures 6 and 7 are voltage and current waveform diagrams when the conventional active filter is connected. Figure 6A is the voltage at the load connection point. 6B is a power supply current waveform diagram, FIG. 7A is a load current waveform diagram, and FIG. 7B is an inverter output current waveform diagram. 10...Power source, 20...Load, 30...Inverter, 40...Control unit, 41...Phase detection circuit,
42...Arithmetic circuit, 43...Butting section, 45...
... Comparison section, 46... High pass filter.
Claims (1)
側を接続したインバータと、前記負荷に供給され
る電力に応じて前記インバータの交流出力を制御
する制御部とからなり、前記制御部が、前記負荷
の入力電圧の位相を検出する位相検出回路と、該
位相検出回路の位相検出信号と前記負荷の入力電
流検出信号をもとに演算処理する演算回路と、該
演算回路の演算電流信号と前記インバータの出力
電流検出信号との突合わせ部からなり、該突合わ
せ部の偏差信号をもとに前記インバータのゲート
信号を得るようにしたアクテイブフイルタにおい
て、前記制御部の位相検出回路の入力側と前記突
合わせ部間に電圧フイードバツクループを設けて
構成したことを特徴とする電源装置のアクテイブ
フイルタ。 It consists of an inverter whose AC output side is connected to a load to which power is to be supplied from an AC power supply, and a control unit that controls the AC output of the inverter according to the power supplied to the load, and the control unit a phase detection circuit that detects the phase of an input voltage of the inverter, an arithmetic circuit that performs arithmetic processing based on a phase detection signal of the phase detection circuit and an input current detection signal of the load, and a calculated current signal of the arithmetic circuit and the inverter. In the active filter, the input side of the phase detection circuit of the control section and the input side of the phase detection circuit of the control section and the gate signal of the inverter are obtained based on the deviation signal of the comparison section. An active filter for a power supply device, characterized in that a voltage feedback loop is provided between butt portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988037897U JPH0713400Y2 (en) | 1988-03-23 | 1988-03-23 | Power Supply Active Filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988037897U JPH0713400Y2 (en) | 1988-03-23 | 1988-03-23 | Power Supply Active Filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01143252U true JPH01143252U (en) | 1989-10-02 |
| JPH0713400Y2 JPH0713400Y2 (en) | 1995-03-29 |
Family
ID=31264471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988037897U Expired - Lifetime JPH0713400Y2 (en) | 1988-03-23 | 1988-03-23 | Power Supply Active Filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0713400Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS629414A (en) * | 1985-07-05 | 1987-01-17 | Res Dev Corp Of Japan | Instantaneous reactive and active power compensator |
| JPS62277064A (en) * | 1986-05-26 | 1987-12-01 | Mitsubishi Electric Corp | Active filter device |
-
1988
- 1988-03-23 JP JP1988037897U patent/JPH0713400Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS629414A (en) * | 1985-07-05 | 1987-01-17 | Res Dev Corp Of Japan | Instantaneous reactive and active power compensator |
| JPS62277064A (en) * | 1986-05-26 | 1987-12-01 | Mitsubishi Electric Corp | Active filter device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0713400Y2 (en) | 1995-03-29 |
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