JPS62178796U - - Google Patents
Info
- Publication number
- JPS62178796U JPS62178796U JP6499786U JP6499786U JPS62178796U JP S62178796 U JPS62178796 U JP S62178796U JP 6499786 U JP6499786 U JP 6499786U JP 6499786 U JP6499786 U JP 6499786U JP S62178796 U JPS62178796 U JP S62178796U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- turned
- cushion
- circuit
- control device
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000008929 regeneration Effects 0.000 claims 2
- 238000011069 regeneration method Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案に係るＰＷＭ変換器の制御装置
の一実施例を示す要部回路図、第２図は従来例を
示す回路図である。
１…３相交流電源、２…交流リアクトル、３…
ＰＷＭ変換器、３Ａ…ダイオード、３Ｂ…ゲート
ターンオフサイリスタ、４…コンデンサ、５…負
荷、６…交流電圧検出用変換器、７…変流器、８
…直流電圧検出部、９…電圧指令器、１０…電圧
制御アンプ、１１…電流指令発生器、１２…電流
制御アンプ、１３…ゲート回路、１４…クツシヨ
ン回路、１５，１６…スイツチ。
FIG. 1 is a main circuit diagram showing an embodiment of a control device for a PWM converter according to the present invention, and FIG. 2 is a circuit diagram showing a conventional example. 1...3-phase AC power supply, 2...AC reactor, 3...
PWM converter, 3A...diode, 3B...gate turn-off thyristor, 4...capacitor, 5...load, 6...AC voltage detection converter, 7...current transformer, 8
...DC voltage detection unit, 9...Voltage command device, 10...Voltage control amplifier, 11...Current command generator, 12...Current control amplifier, 13...Gate circuit, 14...Cushion circuit, 15, 16...Switch.
Claims (1)
続した自己消弧型スイツチング素子を有し、直流
側にコンデンサ及び負荷が接続され、交流側に交
流リアクトルを介して交流電源が接続されたＰＷ
Ｍ変換器の電源側の力率を駆動時、回生時共１．
０にするように直流電圧を制御する制御装置にお
いて、電圧指令器と電圧制御アンプの間にソフト
スタートのためのクツシヨン回路を設けるととも
に、運転前はオン、運転開始時にはオフとするス
イツチを前記クツシヨン回路の入力端間に接続し
て、電圧指令と直流電圧検出値の大小関係の逆転
時に回生と駆動のモード切換えを自動的に行うよ
うにしたことを特徴とするＰＷＭ変換器の制御装
置。 A PW with a self-extinguishing switching element connected in antiparallel to a diode to enable regeneration, a capacitor and load connected to the DC side, and an AC power source connected to the AC side via an AC reactor.
The power factor on the power supply side of the M converter is set to 1.
In a control device that controls the DC voltage to zero, a cushion circuit for soft start is provided between the voltage command device and the voltage control amplifier, and the cushion is provided with a switch that is turned on before operation and turned off at the start of operation. A control device for a PWM converter, which is connected between input terminals of a circuit, and is configured to automatically switch between regeneration and drive modes when the magnitude relationship between a voltage command and a detected DC voltage value is reversed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6499786U JPS62178796U (en) | 1986-04-28 | 1986-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6499786U JPS62178796U (en) | 1986-04-28 | 1986-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62178796U true JPS62178796U (en) | 1987-11-13 |
Family
ID=30901666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6499786U Pending JPS62178796U (en) | 1986-04-28 | 1986-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62178796U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5425415A (en) * | 1977-07-29 | 1979-02-26 | Toshiba Corp | Inverter controller |
| JPS5514079U (en) * | 1978-07-14 | 1980-01-29 | ||
| JPS609383A (en) * | 1983-06-27 | 1985-01-18 | Hitachi Ltd | Ac/dc converter |
-
1986
- 1986-04-28 JP JP6499786U patent/JPS62178796U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5425415A (en) * | 1977-07-29 | 1979-02-26 | Toshiba Corp | Inverter controller |
| JPS5514079U (en) * | 1978-07-14 | 1980-01-29 | ||
| JPS609383A (en) * | 1983-06-27 | 1985-01-18 | Hitachi Ltd | Ac/dc converter |