JPS5911786A - Power converter - Google Patents

Power converter

Info

Publication number
JPS5911786A
JPS5911786A JP57119523A JP11952382A JPS5911786A JP S5911786 A JPS5911786 A JP S5911786A JP 57119523 A JP57119523 A JP 57119523A JP 11952382 A JP11952382 A JP 11952382A JP S5911786 A JPS5911786 A JP S5911786A
Authority
JP
Japan
Prior art keywords
thyristor
arm
voltage
time
bias
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
Application number
JP57119523A
Other languages
Japanese (ja)
Inventor
Hiroshi Uchino
内野　広
Kihei Nakajima
中島　喜平
Ryoichi Kurosawa
黒沢　良一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP57119523A priority Critical patent/JPS5911786A/en
Priority to DE19833324542 priority patent/DE3324542A1/en
Priority to US06/512,004 priority patent/US4517636A/en
Priority to CH3759/83A priority patent/CH660652A5/en
Publication of JPS5911786A publication Critical patent/JPS5911786A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/515—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To increase the voltage and the capacity of a power converter and to enable to generate high frequency by applying a reverse bias voltage from a bias power source when the GTOs of thyristor arms are turned OFF. CONSTITUTION:A plurality of thyristor arms UP-WP, UN-WN are connected in bridges. Respective thyristor arms are composed by connecting a normal thyristor in series with the parallel circuit of thyristors 9-14 having forcibly commutating functions and a bias power source 24. When the thyristors 9-14 having forcibly commutating function are turned OFF by gate control circuit 16, 17, reverse bias voltage is applied by the bias power source 24.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、サイリスタをブリッジ接続して構成し交ｂｉ
Ｌ世１１′眠圧による自然転流により、直流電流を父υ
ＩＬに変換する屯力父換装置に係り、７１斤に、運転周
波数限界を向上した電力変換装置６−に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is directed to a bridge-connected thyristor.
Due to natural commutation due to sleep pressure, DC current is
The present invention relates to a power conversion device for converting to IL, and relates to a power conversion device 6- with an improved operating frequency limit in 71 days.

〔発明の技術重付Ｉ」〕[Technical Emphasis on Inventions I]

４４１図は、本９Ｇ明を適用する…１力変換装財の、１
疋来の実施１９１ｊを示す構成図で、公知の無整流子１
れＩｉ！Ｉｌ杉、七の一例である。図に於て、１は直流
゛電源で、油溶その出力電流ＩＤを制御しつるＴａ能を
有゛ノーる。３は、本発明を適用する電力変換装置で、
サイリスタアームＵ））、　ＶＰ、　ＷＰｌＵＫ　ＶＮ
、鼎をブリッジ］ρ統して構成畑れる。２は、旧派リア
クトルでＩｃｊ流屯諒１及び屯力変ｊ典装舅３のりｙｆ
ル屯電圧吸収して、ＩＭ流’Ｑ流工。を平滑する。４ｉ
ｌ−Ｌ同期ｌｌＪ、動０１ｔで５の゛電機子巻線と６の
界磁巻線を有している。７は位置検出器で、同期゛亀動
機４０回転角度を検出する。８は亀力変換装揃３の点弧
ｔｌｔｌｌ側１回路で、Ｉｘｌ置検比検出器７力信号に
応じてサイリスタアームＵＰ、ｖｐ％ＷＰ、　［Ｊｆ虫
ＶＮ、　ＷＮの点弧制御を行なう。第２図は、第１図に
於ける動作を示す波形図で、ＥＵ　、ＩＬｙ　ｓ　Ｅｗ
はそれぞれ第１図に示す同期′鳴動機４のＵ相、■相、
Ｗ相の誘起車圧ＩＵ、■ヮ、Ｉ、はそれぞれ同期ｒＪ４
．動機４のＵ相、■相、Ｗ相電流とする。（′Ｋに第１
図に於て、サイリスタアームＵｒ１．！：ＷＮか通′亀
している状態からサイリスクアームＶＰへ転流を行なう
ときの動作を説明する。第２区１に示ず時刻ｔ１に於て
、−リイリスタアー　ムｖｐに点弧パルスを与えると、
このときＪ九がＥｖより犬であるからｂ　ｕ　　Ｅ　ｖ
の車圧がサイリスタアームｖＰに順方向電圧として加わ
っており、サイリスタアームｖＰがターンオンする。Figure 441 applies book 9G Ming...1 power conversion equipment, 1
This is a configuration diagram showing a conventional implementation 191j, in which a known commutatorless 1
Re Ii! This is an example of Ilsugi, Shichi. In the figure, reference numeral 1 denotes a DC power supply, which has a Ta function that controls the output current ID of the oil melt. 3 is a power conversion device to which the present invention is applied,
Thyristor arm U)), VP, WPlUK VN
, bridge the bridge] ρ and compose the field. 2 is an old-school reactor with Icj style 1 and tonryokuden j tenso 3 Nori yf
It absorbs voltage and uses IM style'Q style. smooth. 4i
It has 5 armature windings and 6 field windings with 1-L synchronous 11J and motion 01t. 7 is a position detector which detects the rotation angle of the synchronous mechanism 40. 8 is one circuit on the ignition tltll side of the tortoise force converter set 3, which controls the ignition of the thyristor arms UP, vp%WP, [JfVN, WN according to the Ixl position ratio detector 7 force signal. FIG. 2 is a waveform diagram showing the operation in FIG.
are the U phase, ■ phase, and
The W-phase induced vehicle pressures IU, ■ヮ, and I are each synchronized with rJ4.
．． Let's assume the U-phase, ■-phase, and W-phase currents of motive 4. ('K has the first
In the figure, thyristor arm Ur1. ! : The operation when commutation is performed from the state where WN is flowing to the thyrisk arm VP will be explained. At time t1, not shown in Section 2 1, when a firing pulse is applied to the -reelister arm vp,
In this case, J9 is more dog than Ev, so b u E v
The vehicle pressure is applied to the thyristor arm vP as a forward voltage, and the thyristor arm vP is turned on.

同時に第１図のに示すような観流変化を生じ、Ｉ、が減
少し、■７が増加する。時刻ｔ２に於て、Ｉ、が零にな
ると、サイリスクアームＵＰがオフする。このときＥＵ
がＥＶよυ大であるから、Ｅｌｌｌ　’　ｂ−ｙの′車
圧がサイリスタアームＵＰに逆方向電圧として加わる。At the same time, a change in the viewing current as shown in Figure 1 occurs, where I decreases and ■7 increases. At time t2, when I becomes zero, the thyrisk arm UP is turned off. At this time, the EU
Since υ is larger than EV, Ell'by' vehicle pressure is applied to the thyristor arm UP as a reverse voltage.

時刻ｔ３に於て、鳩、とＥｖが等しくなると、サイリス
クアームＵＰに加わる逆方向電圧は零になり、以後サイ
リスタアームＵＰに加わる車圧の極１（１，が反転し、
−１１ｉＩ方回電圧が加わるように々る０したがって時
刻ｔ３までにサイリスターｊ′−ムＤＩｊ＆ユ完全にタ
ーンオフして順電圧田土能力を回ＩＭシ、ている必替が
あり、そのためｔ３−ｔ２がサイリスタ素子のターンオ
フタイムより長くなるように設定する。At time t3, when Ev becomes equal to Ev, the reverse voltage applied to the thyristor arm UP becomes zero, and from then on, pole 1 (1, of the vehicle pressure applied to the thyristor arm UP is reversed,
Therefore, by time t3, the thyristor j'-mu DIj & U must be completely turned off and the forward voltage capacity is turned IM, so that t3-t2 is Set to be longer than the turn-off time of the thyristor element.

〔背景技術の問題点〕[Problems with background technology]

す、上述べた無贅１ｌｉｅ子屯動磯を、より大容量、１
νら、改の用途ヘパ（用する需沙が高まっている。例え
は従来がスタービンで駆動されていたコンプレツサを、
取扱いと保守が容易で高効率で経済性に曖れ、しかも制
御件に１優れている無整流子電動機で置換する需安があ
る。このような用途では、例えば′電動機容儀３００（
１０ｋＷ　、回転数６（Ｈ１０Ｒ＋、’へ１、あるいは
１０００（ｌｋＷ　−９００ＯＲＰＭ等、大容量でしか
も、重速回転を要求され電圧としては３ｋＶ〜ｉ　４　
ｋＶ程度を要求格れる。そのだめ、高用犬谷にで、しか
も商い周波数を発生できる亀力変換装置直が必要となる
。一般にサイリスタ素子は、篩用、大電流のものほどタ
ーンオフタイムが長くなる傾向があり、このような用途
に適した高圧、大電流の四速サイリスタは開発されてい
ない。例えば、ピーク繰り返しオフ電圧及びピーク繰り
返し逆電圧か４０００Ｖで平均オン電流が１５０ＯＡの
サイリスタ素子の場合、ターンオフタイムは４００μｌ
１ｅｅ程度である。ここでは特に選°別して、ターンオ
フタイム２５０μ５ｅｃＪＪ、Ｔのサイリタタ素子を使
用する場合について説明する。The above-mentioned luxury 1lie child moving boat has a larger capacity, 1
There is an increasing demand for the use of ν, etc., in the use of hepa.For example, compressors that were conventionally driven by a star
There is a demand for replacing motors with commutatorless motors, which are easy to handle and maintain, are highly efficient, are not economical, and are superior in terms of control requirements. In such applications, for example, 'electric motor housing 300 (
10kW, rotation speed 6 (H10R+, 'to 1, or 1000 (LKW -900ORPM, etc.), which requires large capacity and heavy rotation, and the voltage is 3kV to i4
Approximately kV is required. Instead, a tortoise force conversion device that can be used for high-performance devices and generate high frequencies is required. Generally, thyristor elements tend to have a longer turn-off time as they are used for sieving and have a higher current, and a high-voltage, high-current four-speed thyristor suitable for such uses has not been developed. For example, in the case of a thyristor element with a peak repetitive off voltage and a peak repetitive reverse voltage of 4000 V and an average on current of 150 OA, the turn off time is 400 μl.
It is about 1ee. Here, a case will be explained in which a thyretactor element with a turn-off time of 250 μ5 ecJJ, T is used.

第２図に於て、時刻ｔ２がらｔ３までの電気角は同期電
動機４０力率を向上し、がっ、トルクリップルを少なく
するために、できるだけ小さくすることが望せしい。−
例として、ｔ２がらｔ３寸での電気角を１５°に制御ｊ
する場合について説明する。サイリスタ素子のターンオ
フタイムが２５０μｌ１ｅｅの場合、制御のバラツキ等
を考慮して、ｔ２からｔ３までの時間を、５００／１ｓ
ｅｃ以上を目標に制御するものとすれば、出方側周期の
最小値Ｔ、は し／′ζがって、出力周波数の最大ＦＩＴＳ’、　ｆ　
＋はしたがって、無整流子電動機の回転数は４極機の場
合２５００）シ、ＰＭ、２極機を使用しても５０００Ｒ
ＰＭが限界であり、必要な回転数を得るために増速ギア
が必要となる。特に、大容量で高速回転の増速ギアは製
作が困姉であり、無整流子電動機をこの様な用途に適用
するのに限界を生じていた。In FIG. 2, it is desirable that the electrical angle from time t2 to t3 be as small as possible in order to improve the power factor of the synchronous motor 40 and reduce torque ripple. −
As an example, the electrical angle from t2 to t3 is controlled to 15°.
Let's explain the case. When the turn-off time of the thyristor element is 250μl1ee, the time from t2 to t3 is set to 500/1s, taking into account variations in control, etc.
If control is aimed at ec or more, the minimum value T of the output side period, H/'ζ, and the maximum output frequency FITS', f
Therefore, the rotation speed of a non-commutated motor is 2500R in the case of a 4-pole machine, and 5000R even if a PM or 2-pole machine is used.
PM is the limit, and a speed increasing gear is required to obtain the required rotation speed. In particular, it is difficult to manufacture a large-capacity, high-speed speed-up gear, which limits the application of commutatorless motors to such applications.

〔発明の目的〕[Purpose of the invention]

本発明は、上述した従来方式の欠点を除去するためにな
されたものであり、篩用、太番１，１でしかもｌＩ？ｈ
い周波数を発生できる電力変換装置をｆ＜＋ることを目
的としている。The present invention was made in order to eliminate the drawbacks of the conventional method described above, and is for sieves, thick size 1, 1, and 1I? h
The purpose of this invention is to provide a power conversion device that can generate a high frequency f<+.

〔発明の概要〕[Summary of the invention]

この目的を達成するだめ、本発明は、゛リイリスタアー
ムのそオしそれの一端にそれぞ１ｂＧｉ’０を設り、史
にＧＴＯに並列に・ぐイアス屯詮を設けることによって
、ＧＴｏをオフしたときに前記バイアスＦ［諒によシサ
イリスタアームに逆バイアス電圧を印加することを特敵
としたものである。In order to achieve this objective, the present invention provides 1bGi'0 at one end of each rear register arm, and also provides a GTO in parallel with the GTO. The special enemy is to apply a reverse bias voltage to the bias resistor arm when the bias F is turned off.

〔発明の実施例〕[Embodiments of the invention]

第３図は本発明一実施例を示す構成図で、１〜８は第１
図と同一のものであり、その説明は省略する。９〜１４
１Ｊ、、ケゞ−トターンオフサイリスタ（以下、Ｇ’ｒ
ｏと記す）、１５はｌい■７、■。FIG. 3 is a configuration diagram showing one embodiment of the present invention, and 1 to 8 are the first
It is the same as the figure, and its explanation will be omitted. 9-14
1J, gate turn-off thyristor (hereinafter referred to as G'r
o), 15 is l■7,■.

の瞬時値を検出する′電流検出器、１６はＧＴ０９〜１
１０ケ９−ト制御回路、１７はＧＴｏ　７２〜１４のケ
゛−ト制御回路である。壕だ、２４及び２８は、直流バ
イアス′電源、２５〜２７及び２９〜３１は抵抗器を示
す。Current detector 16 detects the instantaneous value of GT09~1
10 gate control circuits; 17 is a gate control circuit for GTos 72-14; 24 and 28 are DC bias power supplies, and 25 to 27 and 29 to 31 are resistors.

次に、第４図により本発明の動作を詳細に説明する。図
に於て、Ｅ＋１．Ｅｙ　、ＥＷはそれぞれ第３図の同期
電動機４のＵ相、■相、Ｗ相の誘起゛電圧、工ｕ、八、
Ｉｗは、それぞれ同期電動機４のＵ相、■相、Ｗ相電流
■〜■はそれぞれサイリスクアームＵＰ、　ＶＰ、　’
ＷＰ、　ＵＮ、　ＶＮ、　ＷＮ　（７）通′帛のサイリ
スク及びＧＴｏ　９〜１４に与えられるオフパルス信号
、■〜■はそれぞれＧＴｏ　９〜１４に与えられるオフ
パルス信号、［株］〜■はそれぞれＩｕ１＋Ｖ％ＩＷが
岑になったことを表わす信号で、［注流検出器１５によ
り与えられる。ここで、サイリスクアームＵＰとＷＮが
通′ｉｗ　ｔ、ている状態から、サイリスクアームｖｐ
へ転流を行なうときの動作を説、明する。第４図に示す
時刻ｔ４に於て、オンパルス信号■をサイリスタアーム
■Ｐに与えると、このときＥＩＩがＥ９より犬であるか
ら、Ｂｏ−Ｅ、の′電圧がシイリスタアームｖｐに順方
向Ｉｔｓ、　Ｉｋ−とじて加わっており、サイリスクア
ームＶＰがターンオンする。同時に、第３図の■に示す
ような電流変化を生じ■。が減少し、■、が増加する。Next, the operation of the present invention will be explained in detail with reference to FIG. In the figure, E+1. Ey and EW are the induced voltages of the U, ■, and W phases of the synchronous motor 4 in Fig. 3, respectively.
Iw is the U-phase, ■-phase, and W-phase current of the synchronous motor 4, and ■~■ are the sirisk arm UP, VP, and '
WP, UN, VN, WN (7) General cyrisk and off-pulse signals given to GTo 9 to 14, ■ to ■ are off-pulse signals given to GTo 9 to 14, respectively, [stock] to ■ are Iu1+V%, respectively This is a signal indicating that the IW has become low, and is given by the flow detector 15. Here, from the state where the thyrisk arm UP and WN are in communication, the thyrisk arm vp
The following describes and explains the operation when commutation is performed. At time t4 shown in FIG. 4, when the on-pulse signal ■ is applied to the thyristor arm ■P, since EII is higher than E9 at this time, the voltage of Bo-E is applied to the thyristor arm vp in the forward direction Its , Ik- is joined, and Cyrisk Arm VP turns on. At the same time, a current change as shown in Figure 3 (■) occurs. decreases and ■ increases.

時刻ｔ５に於て、ＩＵが零になると、電流検出器１５か
ら〜えられる八番信号［株］が°°ＯＨから°”１″に
変わる。At time t5, when IU becomes zero, the No. 8 signal obtained from the current detector 15 changes from °°OH to °"1".

物の信号変化を、ケ゛−ト制御回路１６でパルス化して
、ＧＴ（’）　９にオフパルス信号印）を与える。The signal change of the object is converted into a pulse by the gate control circuit 16, and an off-pulse signal mark) is given to the GT(') 9.

メンパルス信号（８）により、Ｇ’ｌ’０のケ９−トに
負のノぐルス用流が与えられるとＧＴＯは１０〜２０μ
ｓｅｃでターンオフしｌ１ｌＨ′ｔｇ圧阻止能力を回復
する。したかっ−〇、直流バイアス電源２４の［代用が
抵抗器２５を介してＧＴｏ９に順方向に加わる。この順
方向′電圧の大きさをｖｎとする。ＶＢはサイリスクア
ームＵＰの通常のサイリスクには逆方向電圧として加わ
るから第４図斜石ｆ！で７ｊ：ずように、通常のサイリ
スタにはＥ、−Ｅｖ＋ＶＢの逆方回出、圧が加わること
になる。しだがって時刻ｔ６に於て、ＥＩＪとＥｖが等
しくなってもサイリスタアームＵＰの通常のサイリスク
にＣ１ＶＩｌの逆方向電圧が加わっていることになる。When a negative nozzle flow is applied to the gate of G'l'0 by the menpulse signal (8), the GTO becomes 10 to 20μ.
It turns off at sec and restores the l1lH'tg pressure blocking ability. I wanted to do that.A substitute for the DC bias power supply 24 is applied to the GTo9 through the resistor 25 in the forward direction. Let the magnitude of this forward voltage be vn. Since VB is applied as a reverse voltage to the normal cyrisk of the cyrisk arm UP, Fig. 4 diagonal stone f! 7j: As expected, the reverse output pressure of E, -Ev+VB is applied to the normal thyristor. Therefore, at time t6, even if EIJ and Ev become equal, the reverse voltage of C1VI1 is added to the normal thyristor risk of thyristor arm UP.

時刻ｔ７に於て、Ｅｖ　ｂ　ｕが■８に等しくなっ−Ｃ
はじめて、サイリスクアームＵＰの通常のサイリスタに
加わる逆方向′電圧が零になる。各サイリスクアームの
ＧＩ’０と通常のサイリスクの電圧の分担比１：４とす
る場合、ＶＢを２０％に設定すれば、Ｅｖ−Ｂいが２０
％に増加するまで通常のサイリスタに逆方向Ｍｔ圧が加
わるから通常のサイリスクは、時刻ｔ５がらｔ７までの
あいだに順電圧阻止能力を回復すれは良い。At time t7, Ev b u becomes equal to ■8 and −C
For the first time, the reverse voltage applied to the normal thyristor of the thyristor arm UP becomes zero. If the voltage sharing ratio between GI'0 of each Cyrisk arm and normal Cyrisk is 1:4, if VB is set to 20%, Ev-B is 20%.
Since the reverse Mt pressure is applied to the normal thyristor until the voltage increases to 50%, the normal thyristor should recover its forward voltage blocking ability between time t5 and t7.

時刻ｔ６からｔ７’までの゛「：１気角は、１ ｓｉｎ、　０．２中１２　となり、従来の実施例で説明
したのと同様に、時刻ｔ５からｔ６までの′電気角を１
５に制御するものとすればｔ５からｔ７″１．での甲気
病は１２　＋１！ｉ　＝２７となる。・〔発明の効果〕 従って、本発明によれは、従来の実施例で説明しだのと
回４永に通常のサイリスクとしてターン］フタイムが２
５０／ｚｓｅｃ以下の素子を使用するものとし、ｆｌｉ
ｌ１両のバラツキ悄を考慮してｔ５からｔ７捷での時間
ケ、５００／ｊｓｅｃ以上ケ目標に制御仲するものとず
ｉｔは、出力側周期の最小値Ｔ２ｔよ ・・・・・　・・・・・・　　（３） したがって、出力周波数の最大１直ｆ２はし／ｒ、がっ
て、無整流子屯ｌ１ｉｌ１機の回転数は４（側イ幾の場
合、４５０（ＩＲＰＭ、２極機を使用ずれは、９（１０
０ＲＰＭがイ与られる。従来の方式では、目１１述した
ように、４極磯で２５００Ｆｊｌ）Ｍ　、　　２極磯で
５ＵＯＯＲＰＭが限界であったため、必要な回転数をイ
！ＩるだめにｉＷ速ギアが必要になり、特に、犬容ｉｄ
で重速の増速ギアの製作が内錐なだめ、ｈ−スタービン
を使用せさるを得なかった。本発明によれは、このよう
な用途に、取扱いと保守が容易で、高効率で経済性に優
れ、しかも制御性に優れている無整流子′電動機を適用
することが可能になり、工業的効果が太きい。以」二、
強制転流機能を有するサイリスタとして、自己消弧能力
のあるＧＴＯを用いた場合を例に説、明したか、他の公
知の強制転流回路を用いて構成しても良い。又、本発明
の′電力変換装置６の負荷として同□　　期電動機を接
続して、８ｖ流流子励動を構成した場合について説明し
たが、本発明の′電力変換装置はより高い周波数で運転
し得る、高圧大谷団の交直変換装置として他の用途にも
通用できる。また、本発明の′ｒ４ｉ；力変換装置は転
流余裕ｙｔｊを小さくできるから、より＾力率の運転が
可能である。The electrical angle from time t6 to t7' is 1 sin, 12 in 0.2, and the electrical angle from time t5 to t6 is 1 sin, 12 in 0.2.
If it is controlled to 5, then the koi disease from t5 to t7''1. will be 12 + 1!i = 27. [Effects of the Invention] Therefore, according to the present invention, the problems explained in the conventional embodiments will be [Turn as a regular Sairisk in the 4th eternity] Futaimu is 2
An element of 50/zsec or less shall be used, and fli
Taking into account the variation of the l1 car, the time from t5 to t7 is controlled to the target of 500/jsec or more, and it is the minimum value of the output side cycle T2t... ... (3) Therefore, the maximum output frequency is 1 direct f2/r, and therefore the rotation speed of a non-commutated machine is 4 (in the case of side a, 450 (IRPM, 2-pole machine) The usage deviation is 9 (10
0 RPM is given. With the conventional method, as mentioned above, the limit was 2,500Fjl)M on a 4-pole rock and 5UOORPM on a 2-pole rock, so the required number of rotations was reduced by I! iw speed gear is required for irudame, especially inuyo id
Therefore, the construction of a heavy speed increasing gear was complicated by the inner cone, so it was impossible to use an H-turbine. According to the present invention, it is possible to apply a commutatorless electric motor to such applications, which is easy to handle and maintain, is highly efficient, economical, and has excellent controllability, and is suitable for industrial use. The effect is strong. 2,
As the thyristor having a forced commutation function, a GTO having a self-extinguishing ability is used as an example. Alternatively, other known forced commutation circuits may be used. In addition, although the case has been described in which a synchronous motor is connected as the load of the power converter 6 of the present invention to configure 8V current excitation, the power converter of the present invention can be operated at a higher frequency. It can also be used for other purposes as a high-voltage Otani group AC/DC converter. Further, since the force converting device of the present invention can reduce the commutation margin ytj, operation with a higher power factor is possible.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、従来の実施例を示す構成図、第２図は従来の
実施例の動作を示す波形図、第３図は、本発明一実施例
を示す構成図、第４図は、本発明の動作を７ドず波形図
である。 １・・１．ｆ−４Ｒ，山、ｉｌ＋ｉｔ、２・・・直流リ
アクトル、３・・・ｌ…力力変換的″、４・・・同期電
動機、５・・・１）Ｌ様子巻線、６・・・界磁巻線、７
・・位置検出器、８・点弧制御回路、９　、７０　、１
１　、　ｌ　２　、　Ｊ　３　、１４−・・ＧＴｏ、７
５・・１に流検出器、１６．１７・・ケ９−トｔｌｌＪ
　１’＋Ｌ１回路　２４，２１３・・・直流バイアス′
１比ｄ＋式、２．５　、２６．２７　、２９　、３０　
、．９１　・・・抵抗器。FIG. 1 is a block diagram showing a conventional embodiment, FIG. 2 is a waveform diagram showing the operation of the conventional embodiment, FIG. 3 is a block diagram showing an embodiment of the present invention, and FIG. 4 is a block diagram showing the operation of the conventional embodiment. FIG. 7 is a waveform diagram showing the operation of the invention. 1...1. f-4R, mountain, il+it, 2... DC reactor, 3... l... force conversion'', 4... synchronous motor, 5... 1) L-like winding, 6... field magnetic winding, 7
・Position detector, 8・Ignition control circuit, 9, 70, 1
1, l2, J3, 14-...GTo, 7
5...1 is a flow detector, 16.17...ket9-tllJ
1'+L1 circuit 24,213...DC bias'
1 ratio d + formula, 2.5 , 26.27 , 29 , 30
,．． 91...Resistor.

Claims (2)

【特許請求の範囲】[Claims] （１）複数のサイリスタアームをブリッジ接続して構成
し、父流側電圧による自然転流により、直流′電流を父
流に変換する電力変換装置に於て、前ｉ己すイリスタア
ームを強制転流機能を有するサイリスタとバイアス′眠
源との並列回路に、通常のサイリスタを直列に接続して
構成し、前記強制転流機能を有するサイリスタをオフし
たときに、前記バイアス′区源により１１ｉ、ｌ　Ｍｅ
ｔ辿常のサイリスタに逆バイアス車圧が印加さｉするよ
うにしたことを特徴とする電力変換装置。(1) In a power conversion device that is configured by connecting multiple thyristor arms in a bridge and converts direct current into the father current through natural commutation due to the father current side voltage, the first thyristor arm is forcedly commutated. A normal thyristor is connected in series to a parallel circuit of a thyristor having a function and a bias' sleep source, and when the thyristor having a forced commutation function is turned off, 11i, l are generated by the bias' source. Me
A power conversion device characterized in that a reverse bias vehicle pressure is applied to a conventional thyristor. （２）　　前記強制転流機能を有するサイリスタとして
ケ８−□トターンメフサイリスタを用いることを％徴と
する前記％計請求の範囲第１狽１己載の電力変換装置。(2) The power conversion device according to claim 1, wherein the percentage meter is characterized in that a K8-□ two-turn mefthyristor is used as the thyristor having the forced commutation function.
JP57119523A 1982-07-09 1982-07-09 Power converter Pending JPS5911786A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57119523A JPS5911786A (en) 1982-07-09 1982-07-09 Power converter
DE19833324542 DE3324542A1 (en) 1982-07-09 1983-07-07 INVERTERING / INVERTERING
US06/512,004 US4517636A (en) 1982-07-09 1983-07-08 Inverter apparatus
CH3759/83A CH660652A5 (en) 1982-07-09 1983-07-08 INVERTER ARRANGEMENT.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57119523A JPS5911786A (en) 1982-07-09 1982-07-09 Power converter

Publications (1)

Publication Number Publication Date
JPS5911786A true JPS5911786A (en) 1984-01-21

Family

ID=14763380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57119523A Pending JPS5911786A (en) 1982-07-09 1982-07-09 Power converter

Country Status (1)

Country Link
JP (1) JPS5911786A (en)

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