JPH0330405A - Single-phase/three-phase power supply device - Google Patents
Single-phase/three-phase power supply deviceInfo
- Publication number
- JPH0330405A JPH0330405A JP1166448A JP16644889A JPH0330405A JP H0330405 A JPH0330405 A JP H0330405A JP 1166448 A JP1166448 A JP 1166448A JP 16644889 A JP16644889 A JP 16644889A JP H0330405 A JPH0330405 A JP H0330405A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- power
- winding
- power supply
- transformer
- 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
- 238000004804 winding Methods 0.000 claims abstract description 44
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000016507 interphase Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Ac-Ac Conversion (AREA)
Abstract
Description
【発明の詳細な説明】
Ａ、産業上の利用分野
本発明は電力供給装置に係り、特に単相負荷と三相負荷
が混在する電気所において有効な単相・三相電力供給装
置に関する。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a power supply device, and particularly to a single-phase/three-phase power supply device that is effective in electric stations where single-phase loads and three-phase loads coexist.
Ｂ１発明の概要
本発明は、単相電源と三相電源を必要とする場合におい
て、
単相電源に位相変換手段を介して相変換トランス一次側
を接続し、このトランスの二次側から三相電力を取り出
すことにより、
構成が簡単な単…・三相電力供給装置を得る。B1 Summary of the Invention The present invention, when a single-phase power source and a three-phase power source are required, connects the primary side of a phase conversion transformer to the single-phase power source via a phase conversion means, and converts the three-phase power source from the secondary side of this transformer. By extracting electric power, a single- and three-phase power supply device with a simple configuration is obtained.
Ｃ従来の技術
従来、無停電電源装置等の電源を必要とする負荷として
単相負荷と三相負荷が混在している場合、第３図に示す
ように、三相電源をまず用意するか、第４図に示すよう
に所定の相変換手段を用いて単相負荷にも電力を供給す
る手段をとっていた。C. Conventional technology Conventionally, when single-phase loads and three-phase loads coexist as loads that require a power source such as an uninterruptible power supply, as shown in Figure 3, a three-phase power source is first prepared, or As shown in FIG. 4, a method was used to supply power even to single-phase loads using a predetermined phase conversion means.
第３図において１は三相無停電電源装置、２は配電線、
３は三相負荷、４は単相負荷である。また、第４図にお
いて５は相変換器としてのスコツト巻線変圧器である。In Figure 3, 1 is a three-phase uninterruptible power supply, 2 is a distribution line,
3 is a three-phase load, and 4 is a single-phase load. Further, in FIG. 4, numeral 5 denotes a Scott winding transformer as a phase converter.
Ｄ１発明が解決しようとする課題
第３図および第４図に示す電源供給装置では、第一に、
単相負荷がそれぞれ同−容重でなければ三相不平衡とな
る。第二に、わずかな容量のためでも三相電源を用意し
なければならず、トータルシステムとして割高となる。D1 Problems to be Solved by the Invention In the power supply device shown in FIGS. 3 and 4, firstly,
If the single-phase loads do not each have the same weight, three-phase unbalance will occur. Second, a three-phase power supply must be provided even for a small capacity, making the total system expensive.
例えば、一般に同一容量の場合７ＳＫＶＡ程度までは、
三相電源の方が単相電源に比べて２０％程度高くつく。For example, in general, up to about 7 SKVA for the same capacity,
Three-phase power is about 20% more expensive than single-phase power.
例えば、三相負荷５ＫＶ＾、単相負荷５０ＫＶＡの場合
で、単相負荷が一桁多くても三相の無停電電源装置を用
意巳なければならない。特に止むを得ないときは、Ｓ
ＫＶＡ三相川電用と、５０ＫＶＡ単相用Ｔｉ源の２種類
を用意しなければならないときらあり、極めて不経済な
システム計画を強いられることになる。For example, in the case of a three-phase load of 5 KV^ and a single-phase load of 50 KVA, a three-phase uninterruptible power supply must be prepared even if the single-phase load is an order of magnitude larger. Especially when it is unavoidable,
It is necessary to prepare two types of Ti sources: a KVA three-phase river electric source and a 50 KVA single-phase Ti source, which forces an extremely uneconomical system plan.
本発明は上述の問題点に鑑みてなされたもので、その目
的は単相電源からの電力を、位相変成器と相変換トラン
スからなる相変換器を介して三相電力を得るようにする
ことにより、高性能にして（Δ成が簡単な単相・三相電
力供給装置を提供することである。The present invention has been made in view of the above-mentioned problems, and its purpose is to obtain three-phase power from a single-phase power supply through a phase converter consisting of a phase transformer and a phase conversion transformer. The purpose of the present invention is to provide a single-phase/three-phase power supply device with high performance and easy Δ formation.
Ｅ、課題を解決するための手段
本発明は、上述の目的を達成ｒるために、単相電源（ｌ
相とこの単相電源位相に対して所定の位相差を有する偏
位位相を発生する位相差発生手段と、一次側において前
記単相電源位相の電力を入力とする巻線と前記偏位位相
の電力を入力とする巻線を備え、二次側において前記各
巻線の電力に基づいて三相電力を発生する巻線を備えた
相変換トランスによって単相・三相電力供給装置を構成
する。E. Means for Solving the Problems In order to achieve the above-mentioned objects, the present invention provides a single-phase power supply (l
a phase difference generating means for generating an offset phase having a predetermined phase difference with respect to the single-phase power supply phase; and a winding that receives the power of the single-phase power supply phase as input on the primary side, A single-phase/three-phase power supply device is configured by a phase conversion transformer including a winding that inputs power and a winding that generates three-phase power on the secondary side based on the power of each of the windings.
Ｆ３作用
単相電源からの直接の電力は相変換トランスの一次側の
一つの巻線に供給され、さらに単相電源の電力位相は位
相変換器によって所定位相差だけ偏位され、この偏位さ
れた偏位位相電力は一次側の他の巻線に供給される。こ
れにより、前記相変換トランスの二次側巻線から所定の
位相差を有する三相電力が発生する。Direct power from the F3 action single-phase power source is supplied to one winding on the primary side of the phase conversion transformer, and the power phase of the single-phase power source is further shifted by a predetermined phase difference by a phase converter, and this shifted power is The shifted phase power is supplied to the other windings on the primary side. As a result, three-phase power having a predetermined phase difference is generated from the secondary winding of the phase conversion transformer.
Ｇ、実施例
以下に本発明の実施例を第１図〜第２図を参照しながら
説明する。G. Examples Examples of the present invention will be described below with reference to FIGS. 1 and 2.
第１図は本発明の実施例による電力供給装置を示すしの
で、本実施例においては単相無停電電源装置６の単相配
電線７に２相／３相変換器８が接続されている。２相／
３相変換器８は相変換用トランス９と位相変成器ＩＯか
らなり、相変換用トランス９はいわゆる逆スコツト巻線
型トランスである。さらに、相変換トランス９は一次側
が垂直巻線（′１゛座）９ａと垂平巻線（Ｍ座）９ｂか
らなり、二次側が垂直巻線９ｃと垂平巻線９ｄによって
構成されている。位相変成器１０はコイル９ ｒｔ９ｂ
からなり、これらのコイル９ａと９ｂ間は電気位相で９
０°ずれている。FIG. 1 shows a power supply device according to an embodiment of the present invention. In this embodiment, a two-phase/three-phase converter 8 is connected to a single-phase distribution line 7 of a single-phase uninterruptible power supply 6. FIG. 2 phase/
The three-phase converter 8 is composed of a phase conversion transformer 9 and a phase transformer IO, and the phase conversion transformer 9 is a so-called reverse-scott-wound type transformer. Further, the phase conversion transformer 9 has a primary side consisting of a vertical winding ('1゛ seat) 9a and a vertical winding (M seat) 9b, and a secondary side consisting of a vertical winding 9c and a vertical winding 9d. . Phase transformer 10 is coil 9 rt9b
The electrical phase between these coils 9a and 9b is 9.
It is shifted by 0°.
相変換トランスの垂直巻線９ａは二相電線７ａ７ｂに接
続されており、垂平巻線９ｂは位相変成４工０のコイル
９ｂに接続されている。さらに、位相変成器ｌＯのコイ
ル９ａは接続点Ａ、Ｈにおいて電線７ａ。７ｂに接続さ
れている。The vertical winding 9a of the phase conversion transformer is connected to the two-phase electric wire 7a7b, and the vertical winding 9b is connected to the coil 9b of the phase conversion 4-wire 0. Furthermore, the coil 9a of the phase transformer IO is connected to the electric wire 7a at the connection points A and H. 7b.
上記構成の単相・三相電力供給装置によれば、相変換ト
ランス９の一次側の垂直巻線（Ｔ座）９ａを弔相点停止
ｍ源６に接続し、他方の垂平巻線（Ｍ座）９ｂは９０”
の位相差を有する変成器１０を通して単相無停電電源６
に接続すると共に、二次側の巻線９ｃ、９ｄ（通常のス
コツトトランスの見方からすれば一次側巻線）から電力
を取り出し、三相負荷３に供給する。例えば、単相負荷
４が５０ ＫＶＡ、三相負荷３か５ ＫＶＡノ場合、５
５ＫＶＡの単相無停止Ｉ電源を用意し単相負荷４に５０
Ｋｌ／Ａを供給し、残りの５ Ｋ’／Ａを相変換トラ
ンス９の垂直巻線９ａと垂平巻線９ｂに２ 、５ ＫＶ
Ａづつ供給して二次側から５ ＫＶＡを電源を作り三ｍ
５ ＫＶ＾負荷に電力を供給する。According to the single-phase/three-phase power supply device having the above configuration, the vertical winding (T seat) 9a on the primary side of the phase conversion transformer 9 is connected to the phase stop point m source 6, and the other vertical winding ( M position) 9b is 90”
single-phase uninterruptible power supply 6 through transformer 10 with a phase difference of
At the same time, power is taken out from the secondary windings 9c and 9d (primary windings from the perspective of a normal Scott transformer) and supplied to the three-phase load 3. For example, if single-phase load 4 is 50 KVA and three-phase load 3 or 5 KVA, then 5
Prepare a 5KVA single-phase uninterrupted I power supply and connect it to a single-phase load 4.
Kl/A is supplied, and the remaining 5 K'/A is applied to the vertical winding 9a and vertical winding 9b of the phase conversion transformer 9 at 2.5 KV.
Supply A at a time to create a 5 KVA power source from the secondary side and install a 3 m
5 KV^ Supply power to the load.
また、単相無停７ｒｉ電源６からの電力を相変換トラン
ス９の巻線９ａと９ｂに分けるとき、各々の巻線の分担
率を確実に行うために、第２図に示すように、相聞リア
クトル１■を利用することができろ。すなわち、巻線９
ａは相間リアクトル１１を介して電線７ａ、７ｂに接続
されており、巻線９ｂは相間リアクトル！■を介して巻
線７ａ７ｂに接続されている。In addition, when dividing the power from the single-phase uninterrupted 7ri power supply 6 into the windings 9a and 9b of the phase conversion transformer 9, in order to ensure the sharing ratio of each winding, as shown in FIG. You can use reactor 1■. That is, winding 9
a is connected to electric wires 7a and 7b via an interphase reactor 11, and winding 9b is an interphase reactor! It is connected to the winding 7a7b via (2).
なお、上記実施例では電源として無停７［Ｅ７［を源を
用いた場合について示したが、本発明は単相二線式又は
単相三線式でのみ配線されていて三相７１１！源の無い
地域において、比較的小容重ではあるが三相電源を必要
とする負荷が導入されたとき非常に容易な解決策となる
。In the above embodiment, the case is shown in which an uninterruptible 7 [E7] is used as the power source, but the present invention is wired only in a single-phase two-wire system or a single-phase three-wire system. This is a very easy solution when a load requiring a three-phase power source is introduced in an area without a power source, although it is relatively small and heavy.
Ｈ１発明の効果
本発明は上述の如くであって、次のような利点を有する
。H1 Effects of the Invention The present invention is as described above and has the following advantages.
（１）単相負荷、三相負荷が混在していても、単相の無
停電電源一種類を用意すればよい。(1) Even if single-phase loads and three-phase loads coexist, it is only necessary to prepare one type of single-phase uninterruptible power supply.
（２）９０°位相変成器と′逆スコツトトランスによる
極めてシンプルな器材を用意するだけで単相から三相の
’１１を作り出せるので、信頼性、コンパクトさを実現
できろ。(2) Reliability and compactness can be achieved because a single-phase to three-phase '11 can be created just by preparing extremely simple equipment such as a 90° phase transformer and an inverted Scott transformer.
（３）従来、三相電源を用意せざるを得なかったため、
負荷平衡のため、単相負荷を３等分（ＵＶ間、ＶＷ間、
ＷＵ間ン又は２等分（Ｍ座、Ｔ座）しなければならず単
相負荷の等分に苦慮したが、本案では単相電源がベース
となっているので、その心配は不要で、まとめて接続で
きる。(3) Conventionally, it was necessary to prepare a three-phase power supply,
To balance the load, divide the single-phase load into three equal parts (between UV, between VW,
It was difficult to equally divide the single-phase load because it had to be divided into two parts (M and T), but this proposal is based on a single-phase power supply, so there is no need to worry about that. connection.
第１図は本発明の実施例による単相・三相電力供給装置
のブロック結線図、第２図は第１図の装はの変形例の要
部を示す結線図、第３図は従来の三相電力供給装置のブ
ロック結線図、第４図は従来の単相・三相電力供給装置
のブロック精線図である。
３・・・三相負荷、４・・・単相負荷、Ｇ・・・単相無
停電電源、７ａ、７ｂ・・・配７Ｉ！線、８・・・…変
換器、９相変換トランス、９ａ・・・一次側巻線である
垂直巻線、９ｂ・・・一次側巻線である垂平巻線、９ｃ
、９ｄ・・・二次側巻線、１０・・・位相変成器、ｌＯ
ａ、１０ｂ・・・コイル、１１・・・相聞リアクトル。
外２名Fig. 1 is a block wiring diagram of a single-phase/three-phase power supply device according to an embodiment of the present invention, Fig. 2 is a wiring diagram showing main parts of a modification of the equipment shown in Fig. FIG. 4 is a block diagram of a conventional single-phase/three-phase power supply device. 3... Three-phase load, 4... Single-phase load, G... Single-phase uninterruptible power supply, 7a, 7b... Connection 7I! Line, 8...Converter, 9-phase conversion transformer, 9a...Vertical winding that is the primary winding, 9b...Vertical winding that is the primary winding, 9c
, 9d... Secondary winding, 10... Phase transformer, lO
a, 10b...coil, 11... phase reactor. 2 people outside
Claims (1)
いて、単相電源位相とこの単相電源位相に対して所定の
位相差を有する偏位位相を発生する位相差発生手段と、
一次側において前記単相電源位相の電力を入力とする巻
線と前記偏位位相の電力を入力とする巻線を備え、二次
側において前記各巻線の電力に基づいて三相電力を発生
する巻線を備えた相変換トランスによって構成したこと
を特徴とする単相・三相電力供給装置。(1) In a power supply device that converts single-phase power into three-phase power, a phase difference generating means that generates a single-phase power supply phase and a deviation phase having a predetermined phase difference with respect to the single-phase power supply phase;
The primary side includes a winding that inputs the power of the single-phase power supply phase and the winding that inputs the power of the offset phase, and generates three-phase power on the secondary side based on the power of each of the windings. A single-phase/three-phase power supply device comprising a phase conversion transformer equipped with a winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1166448A JPH0330405A (en) | 1989-06-28 | 1989-06-28 | Single-phase/three-phase power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1166448A JPH0330405A (en) | 1989-06-28 | 1989-06-28 | Single-phase/three-phase power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0330405A true JPH0330405A (en) | 1991-02-08 |
Family
ID=15831596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1166448A Pending JPH0330405A (en) | 1989-06-28 | 1989-06-28 | Single-phase/three-phase power supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0330405A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1147597A4 (en) * | 1998-12-11 | 2006-06-28 | Gen Electronics Applic Inc | Motor drive circuit |
| US20170243692A1 (en) * | 2016-02-24 | 2017-08-24 | The Boeing Company | Quad-t transformer to convert ac single-phase to three-phase power |
-
1989
- 1989-06-28 JP JP1166448A patent/JPH0330405A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1147597A4 (en) * | 1998-12-11 | 2006-06-28 | Gen Electronics Applic Inc | Motor drive circuit |
| US20170243692A1 (en) * | 2016-02-24 | 2017-08-24 | The Boeing Company | Quad-t transformer to convert ac single-phase to three-phase power |
| US10199952B2 (en) * | 2016-02-24 | 2019-02-05 | The Boeing Company | Quad-T transformer to convert AC single-phase to three-phase power |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6181132B2 (en) | Power converter | |
| US5124904A (en) | Optimized 18-pulse type AC/DC, or DC/AC, converter system | |
| US3628123A (en) | Apparatus for harmonic neutralization of inverters | |
| US5355296A (en) | Switching converter and summing transformer for use therein | |
| EP0275483B1 (en) | Three-phase transformer for cycloconverter | |
| JPS611270A (en) | Load wiring method with inverter | |
| JP3192168B2 (en) | Optimized 18-pulse AC / DC or DC / AC converter device | |
| JPH0330405A (en) | Single-phase/three-phase power supply device | |
| US5731971A (en) | Apparatus for providing multiple, phase-shifted power outputs | |
| JP3381645B2 (en) | Transformer | |
| JP2682241B2 (en) | Power failure countermeasure device | |
| JP2591843Y2 (en) | Single-phase transformer and mobile power generator using the transformer | |
| JPS63234872A (en) | Transformer for rectifier | |
| JPS58136240A (en) | 3-phase 4-wired ac generator capable of operation in parallel | |
| JPS6315629A (en) | Three-phase/two-phase power converter | |
| SU828316A1 (en) | Device for uninterrupted dc supply of load | |
| JPH1042473A (en) | Parallel operation system for power receiving system and non-utility power generation system | |
| JPS63318726A (en) | Scott connection transformer | |
| JPH0453160Y2 (en) | ||
| JPH096446A (en) | Control method for self-exiting reactive power compensation device | |
| SU1403295A1 (en) | 12 k-phase compensated power supply system | |
| JPH031895B2 (en) | ||
| JPH06189457A (en) | Method for efficient use of contract power | |
| JPS63178731A (en) | Harmonic compensator | |
| JPH03253228A (en) | Tapped ferroresonance three-phase power balancer |