JPS61210873A - Single-phase rectifier circuit - Google Patents
Single-phase rectifier circuitInfo
- Publication number
- JPS61210873A JPS61210873A JP5037285A JP5037285A JPS61210873A JP S61210873 A JPS61210873 A JP S61210873A JP 5037285 A JP5037285 A JP 5037285A JP 5037285 A JP5037285 A JP 5037285A JP S61210873 A JPS61210873 A JP S61210873A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- rectifiers
- secondary winding
- taps
- self
- 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
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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は交流側の高調波を低減し得るようにした単相整
流回路に関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a single-phase rectifier circuit capable of reducing harmonics on the alternating current side.
「従来の技術」
近年、電力用半導体応用機器の普及と大容員化に伴ない
整流器等から生じる高調波障害が問題となり、整流器の
多パルス化、フィルターの使用など種々の対策が講じら
れつつある。それらは３相整流回路についてであって回
路自体の構成が単純な単相整流回路には交流側にフィル
ターを接続する程度でほとんど対策を施していないのが
現状である。"Conventional technology" In recent years, with the spread of power semiconductor application equipment and the increase in capacity, harmonic interference caused by rectifiers has become a problem, and various countermeasures have been taken, such as increasing the number of pulses in rectifiers and using filters. be. These concerns three-phase rectifier circuits, and the current situation is that little countermeasures have been taken for single-phase rectifier circuits, which have a simple circuit configuration, other than connecting a filter to the alternating current side.
まず、単相整流回路を説明する。第３図は電源中性点を
利用した２相半波整流回路で単相変圧器１１の２次巻１
１２の両端Ａ１とＡ２にサイリスタなどの整流素子ＴＡ
１とＴＡ２のアノード側を接続し、２次巻線１２の中点
Ｃを負荷の一端に接続し、この負荷の他端に前記整流素
子ＴＡ１とＴＡ２の他端を接続し整流回路を構成する。First, a single-phase rectifier circuit will be explained. Figure 3 shows a two-phase half-wave rectifier circuit that uses the power supply neutral point, and shows the secondary winding 1 of a single-phase transformer 11.
A rectifying element TA such as a thyristor is connected to both ends A1 and A2 of 12.
1 and TA2 are connected, the middle point C of the secondary winding 12 is connected to one end of a load, and the other ends of the rectifying elements TA1 and TA2 are connected to the other end of the load to form a rectifying circuit. .
この整流回路だと交流側の入力電流／ＬＳＯの波形と直
流側の出力電圧ｅｄｏの波形は第４図（ａ ） （ｂ
）に示す様に、前者は方形波となり、後者は単相全波
整流波形となる。したがって、方形波に含まれる高調波
成分が交流側と他の負荷（図示せず）に悪影響を及ぼす
ので、交流側にフィルター１３を接続し高調波を吸収し
ている。図中、１４は一次巻線、１５は交流電源、ＤＣ
Ｌは直流リアクトル、工ｄ０と■は中ｄｃの電流値と電
圧値である。In this rectifier circuit, the waveform of the input current/LSO on the AC side and the waveform of the output voltage edo on the DC side are shown in Figure 4 (a) (b
), the former is a square wave, and the latter is a single-phase full-wave rectified waveform. Therefore, since the harmonic components contained in the square wave have a negative effect on the AC side and other loads (not shown), a filter 13 is connected to the AC side to absorb the harmonics. In the figure, 14 is the primary winding, 15 is the AC power supply, DC
L is a DC reactor, and d0 and ■ are medium DC current and voltage values.
［発明が解決すべき問題点」
この様に単相整流回路は高調波の発生源とも考えられる
。この高調波を低減するためには交流側にフィルター１
３を接続すればよいが、このフィルター１３は単相整流
回路に使用するには高価であり、又回路構成によっては
ＬＣ共振を起す可能性もあり適用が難しい。[Problems to be solved by the invention] In this way, the single-phase rectifier circuit can be considered as a source of harmonics. In order to reduce this harmonic, a filter is installed on the AC side.
However, this filter 13 is expensive to use in a single-phase rectifier circuit, and depending on the circuit configuration, it may cause LC resonance, making it difficult to apply.
ｒ問題点を解決すべき手段」
本発明は単相変圧器の２次巻線の中点とその中点より左
右対称の位置に複数個のタップを設け、この２次巻線の
両端にサイリスタなどの整流素子を前記各タップにＧＴ
Ｏなどの自己消弧形整流素子を接続し、それら整流素子
の７ノード側を一括して負荷に接続することを特徴とす
る。The present invention provides a plurality of taps at the midpoint of the secondary winding of a single-phase transformer and symmetrical positions from the midpoint, and thyristors are installed at both ends of the secondary winding. A rectifying element such as GT
It is characterized in that self-arc-extinguishing rectifying elements such as O, etc. are connected, and seven node sides of these rectifying elements are collectively connected to a load.
「作用」
この様な回路構成にすると各タップに接続した複数個の
自己消弧形整流素子を次々に連続的に動作させることに
より、整流回路の多パルス化と同じ効果を生じ、交流側
入力電流の高調波の発生を著しく低減できる。"Function" With this kind of circuit configuration, multiple self-extinguishing rectifiers connected to each tap are operated one after another, producing the same effect as multipulsing the rectifier circuit, and reducing the AC side input. The generation of current harmonics can be significantly reduced.
「実施例」
第１図は単相変圧器１０２次巻１１！２の中点Ｃとこの
中点Ｃより左右対称の位置にタップＰ、Ｑ（全部で３タ
ツプ）を設けた一実施例で単相変圧器１の１次巻１３を
単相交流電源４に接続し、その２次巻線２の３タップＰ
、Ｃ，ＱにＧＴＯ又はパワートランジスタなどの自己消
弧形整流素子ＴＰ１Ｔｃ１Ｔｏを接続しその他端（アノ
ード側）を負荷の一端に接続する。そして２次巻線２の
両端Ａ１とＡ２をＳＣＲ又はダイオードなどの整流素子
ＴＡ１とＴＡ２を介して負荷の他端に接続する。この場
合は整流素子ＴＡ１と丁Ａ２のアノード側を２次巻線２
の両端Ａ１とＡ２に接続する。ＤＣＬは直流リアクトル
である。``Example'' Figure 1 shows an example in which taps P and Q (3 taps in total) are provided at the midpoint C of the 102nd winding 11!2 of a single-phase transformer and at positions symmetrical to this midpoint C. The primary winding 13 of the single-phase transformer 1 is connected to the single-phase AC power supply 4, and the 3-tap P of the secondary winding 2 is connected to the single-phase AC power supply 4.
, C, and Q are connected to a self-extinguishing rectifying element TP1Tc1To such as a GTO or a power transistor, and the other end (anode side) is connected to one end of the load. Both ends A1 and A2 of the secondary winding 2 are connected to the other end of the load via rectifying elements TA1 and TA2 such as SCRs or diodes. In this case, the anode side of the rectifier TA1 and the rectifier A2 is connected to the secondary winding 2.
Connect to both ends A1 and A2. DCL is a DC reactor.
第２図の（ａ）図は交流側の入力電流ｔｓの波形、その
（ｂ）図は直流側の出力電圧Ｃｃｌの波形、その（Ｃ）
図は自己消弧形整流素子ＴＰ、 ＴＣｌ−の動作モード
を示す。Figure 2 (a) shows the waveform of the input current ts on the AC side, and Figure 2 (b) shows the waveform of the output voltage Ccl on the DC side.
The figure shows the operating modes of self-extinguishing rectifying elements TP and TCl-.
前記単相変圧器１の二次巻線２の巻数及び巻数比は次の
ようにする。The number of turns and turn ratio of the secondary winding 2 of the single-phase transformer 1 are as follows.
（ＡＩ−Ｃ）間の巻数−（Ａ２−Ｃ）間の巻数−一次巻
線３の巻数
（Ｐ−Ｃ）間の巻数−（Ｑ−Ｃ）間の巻数＜ＡＩ−Ｃ）
間の巻数： ＜Ｐ−Ｇ＞間の巻数−１：ａ （０＜
ａ ＜１＞
二次巻１２に設けた３タップＰ、Ｃ１Ｑに接続した自己
消弧形整流素子王６、−１−は、交流ｌｌＩ！Ｉの１サ
イクルごとに同一のモードを繰り返す制御を行う。第２
図（Ｃ）の動作モードに示すように、整流素子ＴＡ２が
導通状態のときは一→Ｌ→ＴＰ→Ｔ０→１と導通させ、
整流素子ＴＡ１が導通状態のときは几→Ｔ、−＋”ｒ、
−＋ Ｔ、−＋ ＴＰと導通させ、これを繰り返す。各
点弧角は入力電流の高調波を低減させるのに最適にＩ＋
ｌＪ ｍする。この場合、交流側の入力電流波形ｔ５は
、第２図（ａ ＞のように各自己消弧形整流素子和、Ｔ
ｏ、Ｔ、ａの導通状態と同時に（１−ａ ）χＩ、１．
１（１１（１＋ａ ）ｙｔｌ、Ｊと変化し、１２パルス
相当への多パルス化がはかれる。（ＩｄはタップＣでの
電流値）
この実施例では２相半波整流時の波形を１２パルス相当
にできる。この他に、単相変圧器１の二次巻線２に２つ
のタップを設けた場合には６パルス相当となり、４タツ
プを設けると２４パルス相当の多パルス化が可能となり
、（６×タツプ数）パルス化となる。また、この実施例
で第２図（ｂ）の直流出力電圧ｅｃｌ波形も、２相半波
のｅｃＩＱは机の連続であるが、状（（１−ａ）→状→
゛市−・（１＋ａ）→状→ｗ＝（１−ａ ）と変化する
ことになる。（■はタップＣでの電圧値）
「発明の効果」
以上の如く、本発明の構成にすると、単相変圧器１の２
次巻線２の各タップＰＳＱ、Ｃに接続した自己消弧形整
流素子ＴＰ、 Ｔ、、刊の連続的且つ間欠的な動作によ
り、交流側の入力電流ＺＳが多パルス化となり、実施面
で問題を含むフィルターを使用１図は本発明に係る単相
整流回路図の一実施例、第２図（ａ ） （ｂ ）はそ
の交流側の入力電流波形と直流側の出力電圧波形を示す
波形図で、その（Ｃ＞図は本発明で使用した自己消弧形
整流素子ＴＰ、 Ｔ、１Ｔ、の動作モード、第３図は従
来技術に係る単相整流回路図、第４図（ａ ） （ｂ
）はその交流側の入力電流波形と直流側の出力電圧波
形を示す波形図である。Number of turns between (AI-C) - Number of turns between (A2-C) - Number of turns of primary winding 3 (P-C) - Number of turns between (Q-C) <AI-C)
Number of turns between: <PG> Number of turns between -1:a (0<
a <1> The self-arc-extinguishing rectifier element 6, -1- connected to the 3 taps P and C1Q provided in the secondary winding 12 is connected to AC llI! Control is performed to repeat the same mode every cycle of I. Second
As shown in the operation mode of FIG.
When the rectifying element TA1 is in a conductive state, 几→T, −+”r,
-+ T and -+ TP are brought into conduction and this process is repeated. Each firing angle is optimally set to I+ to reduce input current harmonics.
lJ m. In this case, the input current waveform t5 on the AC side is the sum of each self-extinguishing rectifying element, T
o, T, and a are conductive at the same time (1-a) χI, 1.
1(11(1+a)ytl,J), and multi-pulse equivalent to 12 pulses is attempted. (Id is the current value at tap C) In this example, the waveform during two-phase half-wave rectification is equivalent to 12 pulses. In addition, if two taps are provided on the secondary winding 2 of the single-phase transformer 1, it will be equivalent to 6 pulses, and if four taps are provided, it will be possible to increase the number of pulses equivalent to 24 pulses. 6×number of taps).Also, in this example, the DC output voltage ecl waveform shown in FIG. )→state→
It will change as follows: ゛ City - (1 + a) → Sha → w = (1 - a). (■ is the voltage value at tap C) "Effects of the invention" As described above, with the configuration of the present invention, single-phase transformers 1 and 2
Due to the continuous and intermittent operation of the self-extinguishing rectifying elements TP, T, connected to each tap PSQ, C of the next winding 2, the input current ZS on the AC side becomes multi-pulsed, which is difficult to implement. Using a filter with problems Figure 1 is an example of a single-phase rectifier circuit diagram according to the present invention, and Figures 2 (a) and (b) are waveforms showing the input current waveform on the AC side and the output voltage waveform on the DC side. In the figure, the (C> figure) shows the operating modes of the self-extinguishing rectifiers TP, T, and 1T used in the present invention, Figure 3 is a single-phase rectifier circuit diagram according to the prior art, and Figure 4 (a). (b
) is a waveform diagram showing the input current waveform on the AC side and the output voltage waveform on the DC side.
図中 １は単相変圧器 ２は単相変圧器の２次巻線 ３は単相変圧器の１次巻線 ４は単相交流電源 Ａ１ 、Ｐ、Ｃ，Ｑ１Ａ２はタップ 与、Ｔｏｌ−は自己消弧形整流素子 ＴＡＩ、ＴＡ２は整流素子 である。In the diagram 1 is a single phase transformer 2 is the secondary winding of a single-phase transformer 3 is the primary winding of a single-phase transformer 4 is single-phase AC power supply A1, P, C, Q1A2 is tap , Tol- is a self-extinguishing rectifier TAI and TA2 are rectifier elements It is.
特許出願人 株式会社 高岳製作所
（（Ｌ流浅ｋ ７＋ ’ｊ”Ｅ蝉（ｓ’Ｘ ２”’（０
６％］ Ｌ’ ｑＯｔ’ｉｏ ２’Ｔ
Ｏ３６０（（Ｌ）厚いカｑＬ彰曳値・・ 蒐キロ（ｂ
）振支曵カ寛圧ミ搬漫ｅｄ。Patent applicant: Takatake Seisakusho Co., Ltd.
6%] L'qOt'io2'T
O360 ((L) Thick qL performance value... 蒐km(b
) Shinshikakeka Kanpatsumi transfer manual ed.
Claims (1)
て負荷の一端に接続し、前記２次巻線の中点とその中点
より左右対称の位置に複数個のタップを設け、これらタ
ップに接続した別々の自己消弧形整流素子を通して前記
負荷の他端に接続することを特徴とする単相整流回路。A single-phase transformer is connected to one end of the load through a rectifying element connected to both ends of the secondary winding, and a plurality of taps are provided at the midpoint of the secondary winding and symmetrical positions from the midpoint, and these A single-phase rectifier circuit, characterized in that the circuit is connected to the other end of the load through separate self-extinguishing rectifier elements connected to taps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5037285A JPS61210873A (en) | 1985-03-15 | 1985-03-15 | Single-phase rectifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5037285A JPS61210873A (en) | 1985-03-15 | 1985-03-15 | Single-phase rectifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61210873A true JPS61210873A (en) | 1986-09-19 |
Family
ID=12857054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5037285A Pending JPS61210873A (en) | 1985-03-15 | 1985-03-15 | Single-phase rectifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61210873A (en) |
-
1985
- 1985-03-15 JP JP5037285A patent/JPS61210873A/en active Pending
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