JPS62135598U - - Google Patents
Info
- Publication number
- JPS62135598U JPS62135598U JP1986023975U JP2397586U JPS62135598U JP S62135598 U JPS62135598 U JP S62135598U JP 1986023975 U JP1986023975 U JP 1986023975U JP 2397586 U JP2397586 U JP 2397586U JP S62135598 U JPS62135598 U JP S62135598U
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- power
- arc
- self
- control
- 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
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Control Of Ac Motors In General (AREA)
Description
第１図は本考案の一実施例である静止セルビウ
ス装置の構成図、第２図は実施例の瞬停時におけ
る過電流制御タイムチヤート、第３図は従来例の
静止セルビウス装置の構成図、第４図は従来例の
パルス転流動作タイムチヤート、第５図は従来例
の転流失敗時における過電流特性図。
１は電源、２，１３はしや断器、３は巻線形誘
導電動機、４は速度検出器、５は始動用電磁接触
器、６は始動抵抗器、７はセルビウス投入用電磁
接触器、８は順変換器、９は直流リアクトル、１
０高速度しや断器、１１は逆変換器（サイリスタ
），１２は電力変換用変圧器、１４は直流電流検
出器、２０はパルス転流回路、２１は充電用電磁
接触器、２２は充電用電源、Ｒ１はバイパス用抵
抗、ＣＢ１はバイパス用しや断器、Ｄ１〜Ｄ４は
バイパス用整流器、Ｓ１は転流用サイリスタ、Ｃ
１は転流用コンデンア、Ｌ１，Ｌ２は転流用リア
クトル、Ｄ５は転流用整流器、Ｄ６は充電用整流
器、Ｒ２は充電用抵抗、３０は瞬停対策回路、３
０１は直流残留エネルギー吸収回路、３０２は交
流残留エネルギー吸収回路、３１は逆変換器（Ｇ
ＴＯサイリスタ），Ｒ３，Ｒ４は瞬停対策用抵抗
、ＣＢ２は瞬停対策用しや断器、Ｓ２，Ｓ３は瞬
停対策用ＧＴＯサイリスタ、Ｄ７は瞬停対策用整
流器、Ｅは電源電圧、Ｉｄ，Ｉｄ′は直流電流、
ＩＭＳは転流失敗時の電動機側よりの流入直流、
電流成分、ＩＴＳは転流失敗時の逆変換器２次側
よりの流入直流電流成分、ＩＡＣは逆変換器２次
側の残留エネルギーに基づく交流電流。
FIG. 1 is a block diagram of a stationary Servius device which is an embodiment of the present invention, FIG. 2 is a time chart of overcurrent control during momentary power failure of the embodiment, and FIG. 3 is a block diagram of a conventional stationary Servius device. FIG. 4 is a pulse commutation operation time chart of the conventional example, and FIG. 5 is an overcurrent characteristic diagram when commutation fails in the conventional example. 1 is a power source, 2, 13 is a wire cutter, 3 is a wound induction motor, 4 is a speed detector, 5 is a starting electromagnetic contactor, 6 is a starting resistor, 7 is a Servius starting electromagnetic contactor, 8 is a forward converter, 9 is a DC reactor, 1
0 is a high-speed shield breaker, 11 is an inverter (thyristor), 12 is a power conversion transformer, 14 is a DC current detector, 20 is a pulse commutation circuit, 21 is a charging magnetic contactor, 22 is a charging R1 is a bypass resistor, CB1 is a bypass circuit breaker, D1 to D4 are bypass rectifiers, S1 is a commutation thyristor, C
1 is a commutation capacitor, L 1 and L 2 are commutation reactors, D 5 is a commutation rectifier, D 6 is a charging rectifier, R 2 is a charging resistor, 30 is a momentary power failure countermeasure circuit, 3
01 is a DC residual energy absorption circuit, 302 is an AC residual energy absorption circuit, and 31 is an inverse converter (G
TO thyristor), R 3 and R 4 are resistors for instantaneous power outage protection, CB 2 is a shield breaker for instantaneous power outage protection, S 2 and S 3 are GTO thyristors for instantaneous power outage protection, D 7 is a rectifier for instantaneous power outage protection, E is the power supply voltage, Id, Id' are the direct current,
IMS is the inflow DC from the motor side when commutation fails,
The current component, ITS, is the inflow DC current component from the secondary side of the inverter when commutation fails, and IAC is the AC current based on the residual energy on the secondary side of the inverter.
Claims (1)
変換しこの直流と逆変換器で交流電力に変換して
電源に電力返還し逆変換器の点弧位相制御により
速度制御を行なう静止セルビウス装置において、 自己消弧形素子で構成した逆変換器と、前記逆
変換器１次側に並列接続され自己消弧形素子を制
御要素とする直流残留エネルギー吸収回路および
前記逆変換器２次側に並列設置され自己消弧形素
子を制御要素とする交流残留エネルギー吸収回路
を有する瞬停対策回路とをそなえ、瞬時停電発生
時の前記逆変換器１次側の直流過電流検出に基づ
いて前記逆変換器をしや断すると同時に前記瞬停
対策回路を投入して過電流減衰制御を行なうこと
を特徴とした静止セルビウス装置。[Claims for Utility Model Registration] Secondary power of a wound induction motor is converted to DC power by a forward converter, this DC and inverse converter converts it to AC power, the power is returned to the power source, and the ignition phase control of the inverse converter is performed. A stationary Servius device that performs speed control by: an inverter configured with self-arc-extinguishing elements; a DC residual energy absorption circuit connected in parallel to the primary side of the inverter and having the self-arc-extinguishing elements as control elements; A momentary power failure countermeasure circuit is installed in parallel on the secondary side of the inverter and has an AC residual energy absorbing circuit using a self-arc-extinguishing element as a control element, and is provided with an instantaneous power failure countermeasure circuit that is installed in parallel on the secondary side of the inverter and has an AC residual energy absorbing circuit having a self-arc-extinguishing element as a control element. A stationary Servius device characterized in that the inverse converter is turned off based on overcurrent detection and at the same time the instantaneous power failure countermeasure circuit is turned on to perform overcurrent attenuation control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986023975U JPH0537676Y2 (en) | 1986-02-21 | 1986-02-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986023975U JPH0537676Y2 (en) | 1986-02-21 | 1986-02-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62135598U true JPS62135598U (en) | 1987-08-26 |
| JPH0537676Y2 JPH0537676Y2 (en) | 1993-09-22 |
Family
ID=30822779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986023975U Expired - Lifetime JPH0537676Y2 (en) | 1986-02-21 | 1986-02-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0537676Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5683999U (en) * | 1979-11-30 | 1981-07-06 |
-
1986
- 1986-02-21 JP JP1986023975U patent/JPH0537676Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5683999U (en) * | 1979-11-30 | 1981-07-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0537676Y2 (en) | 1993-09-22 |
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