JPS6240067A - Higher harmonic reducer for cycloconverter - Google Patents
Higher harmonic reducer for cycloconverterInfo
- Publication number
- JPS6240067A JPS6240067A JP17752385A JP17752385A JPS6240067A JP S6240067 A JPS6240067 A JP S6240067A JP 17752385 A JP17752385 A JP 17752385A JP 17752385 A JP17752385 A JP 17752385A JP S6240067 A JPS6240067 A JP S6240067A
- Authority
- JP
- Japan
- Prior art keywords
- cycloconverter
- circulating current
- input
- bridges
- phase
- 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
Landscapes
- Ac-Ac Conversion (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は高調波低減に係り、特に、循環電流制御式サイ
クロコンバータに好適なサイクロコンバータ高調波低減
装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to harmonic reduction, and particularly to a cycloconverter harmonic reduction device suitable for a circulating current controlled cycloconverter.
最近、可変速度駆動システムの分野において、交流可変
速ドライブの高性能化が急速に進み、サイクロコンバー
タの利用が増加する傾向にある。Recently, in the field of variable speed drive systems, the performance of AC variable speed drives has rapidly improved, and the use of cycloconverters has tended to increase.
しかし、サイクロコンバータには、入力無効電力が大き
く、交流入力側に複雑に変化する高調波電流が発生する
などの問題がある。なお、この種の装置で関連するもの
には、例えば、特開昭５８−１５４３７０号公報が挙げ
られる。However, cycloconverters have problems such as large input reactive power and generation of complexly changing harmonic currents on the AC input side. Note that related devices of this type include, for example, Japanese Patent Application Laid-Open No. 154370/1983.
本発明の目的は、循環電流制御式サイクロコンバータに
おいて、変換パルスの増加により、入力電流高調波の低
減を図った低高調波サイクロコンバータを提供すること
にある６
〔発明の概要〕
サイクロコンバータには、交流入力側に複雑に変化する
高調波電流が発生するという大きな問題がある１本発明
では、循環電流制御式サイクロコンバータの場合に、変
換パルス数を増加させ、回路依存形高調波を減少させる
。その方法は、入力変圧器の位相差の異なる結線を正群
及び負群コンバータに接続し、変換パルス数を増加させ
るものである。An object of the present invention is to provide a low harmonic cycloconverter in which the input current harmonics are reduced by increasing the number of conversion pulses in a circulating current control type cycloconverter. In the case of a circulating current control type cycloconverter, the present invention increases the number of conversion pulses and reduces circuit-dependent harmonics. . This method connects the input transformers with different phase differences to the positive group and negative group converters to increase the number of conversion pulses.
以下、本発明の一実施例を図により説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
この図は、本発明を適用した循環電流制御式七十二アー
ムサイクロコンバータの主回路単線接続図である。その
構成は、三相余波ブリッジ７４１゜７４２．７２１．７
２２．７３１．７３２等を二セット直列接続し、更に、
それを逆並列接続したものである。１〜６は、電源変圧
器、８〜１０は循環電流リアクトル、１１は交流電動機
、 ７１１．７１２．７５１．７５２゜７６１、７６２
は三相全波ブリッジ。This figure is a main circuit single-line connection diagram of a circulating current controlled 72-arm cycloconverter to which the present invention is applied. Its configuration is three-phase aftermath bridge 741°742.721.7
Two sets of 22.731.732 etc. are connected in series, and further,
These are connected in antiparallel. 1 to 6 are power transformers, 8 to 10 are circulating current reactors, 11 is an AC motor, 711.712.751.752゜761, 762
is a three-phase full-wave bridge.
この動作は、入力変圧器結線による異なる位相を、正群
及び負群コンバータに与えることにより、十二パルスサ
イクロコンバータとして動作することができ、回路依存
形高調波の低減を図れる。In this operation, by giving different phases to the positive group and negative group converters due to the input transformer connection, the converter can operate as a twelve-pulse cycloconverter, and circuit-dependent harmonics can be reduced.
本発明によれば、サイクロコンバータにおいて高調波低
減が循環電流制御式につき図れるため。According to the present invention, harmonics can be reduced in a cycloconverter using a circulating current control system.
低高調波循環電流制御方式サイクロコンバータを提出す
ることができる。A cycloconverter with low harmonic circulating current control method can be submitted.
図は本発明の一実施例のサイクロコンバータの主回路単
線接続図である。The figure is a main circuit single-line connection diagram of a cycloconverter according to an embodiment of the present invention.
Claims (1)
変圧器の位相差の異なる結線を、正群及び負群コンバー
タに接続することを特徴とするサイクロコンバータの高
調波低減装置。1. A harmonic reduction device for a cycloconverter, which is characterized in that, in a circulating current controlled cycloconverter, connections of input transformers having different phase differences are connected to a positive group converter and a negative group converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17752385A JPS6240067A (en) | 1985-08-14 | 1985-08-14 | Higher harmonic reducer for cycloconverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17752385A JPS6240067A (en) | 1985-08-14 | 1985-08-14 | Higher harmonic reducer for cycloconverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6240067A true JPS6240067A (en) | 1987-02-21 |
Family
ID=16032406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17752385A Pending JPS6240067A (en) | 1985-08-14 | 1985-08-14 | Higher harmonic reducer for cycloconverter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6240067A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0560981U (en) * | 1992-01-29 | 1993-08-10 | 大和工業株式会社 | Automotive steering member |
| EP1775828A3 (en) * | 2005-10-17 | 2009-07-15 | General Electric Company | Power converter methods and apparatus for variable speed high power machines |
-
1985
- 1985-08-14 JP JP17752385A patent/JPS6240067A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0560981U (en) * | 1992-01-29 | 1993-08-10 | 大和工業株式会社 | Automotive steering member |
| EP1775828A3 (en) * | 2005-10-17 | 2009-07-15 | General Electric Company | Power converter methods and apparatus for variable speed high power machines |
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