JPS5869468A - Inverter - Google Patents

Inverter

Info

Publication number
JPS5869468A
JPS5869468A JP56167098A JP16709881A JPS5869468A JP S5869468 A JPS5869468 A JP S5869468A JP 56167098 A JP56167098 A JP 56167098A JP 16709881 A JP16709881 A JP 16709881A JP S5869468 A JPS5869468 A JP S5869468A
Authority
JP
Japan
Prior art keywords
phase
power
inverter
load
loads
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
JP56167098A
Other languages
Japanese (ja)
Inventor
Kazuya Tsutsumi
堤　和哉
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56167098A priority Critical patent/JPS5869468A/en
Publication of JPS5869468A publication Critical patent/JPS5869468A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To supply simultaneously stable power to 3 phases and single phase loads by supplying the power from 3-phase inverter to the 3-phase load, providing a Scott connection transformer at the same output side, and supplying power to the single phase load. CONSTITUTION:A 3-phase load 2 is connected to the output side of a 3-phase inverter 1 to supply 3-phase power, a transformer 3 in which equally rated transformers 6, 7 are connected in Scott connection is provided at the same output side, and single phase power is supplied from between the output terminals O and Q and between O and D to single phase loads 4, 5. Accordingly, the single phase load is divided so that the loads of the single phases 4, 5 become the same, thereby flowing balanced 3-phase load currents to the outputs of 3-phase inverter 1. Accordingly, stable powers can be simultaneously supplied to the 3- phase and single phase loads 2, 4, 5 and the efficiency can be improved.

Description

【発明の詳細な説明】 本発明はインバータ装置に係り、特に三相および単相負
荷に同時に電力を供給するに好適なインバータ装置に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inverter device, and particularly to an inverter device suitable for simultaneously supplying power to three-phase and single-phase loads.

三相および中相負荷を同時に有するインバータ装置の構
成は通常次の二つが考えられる。一つは、三相インバー
タと単相インバータの２種類のインバータ装置を備え、
三相負荷には三相インノ（−タよシ、単相負荷には単相
インノ（−夕より電力を供給する方法でアリ、他の一つ
は、三相イン／（−タを備え、三相負荷に三相イン／（
−夕の三相より、単相負荷にはインバータ三相のうちの
一相より電力を供給する方法である。しかし前者でに、
三相インバータ装置と単相インバータ装置を有するため
、重量９寸法が大きくなり、後者では単相負荷が大きい
場合三相各相間の電力分担の不平衡が生じるという欠点
があった。The following two configurations of an inverter device having simultaneous three-phase and medium-phase loads are generally considered. One is equipped with two types of inverter devices: a three-phase inverter and a single-phase inverter.
For three-phase loads, there is a three-phase inno (-tayoshi), for single-phase loads, there is a method that supplies power from a single-phase inno (-ta). Three-phase input to three-phase load/(
-In this method, power is supplied from one of the three phases of the inverter to a single-phase load, rather than from the three-phase inverter. But in the former case,
Since it has a three-phase inverter device and a single-phase inverter device, the weight and dimensions become large, and the latter has the disadvantage that when a single-phase load is large, an imbalance in power sharing among the three phases occurs.

本発明の目的は三相インバータ装置により三相および単
相負荷に同時に安定した電力を供給できるインバータ装
置を提供することにある。An object of the present invention is to provide an inverter device that can simultaneously supply stable power to three-phase and single-phase loads using a three-phase inverter device.

本発明は三相インバータ装置の出力側にスコツト結線変
圧器を設け、その変圧器の２次側に単相負荷を接続する
ようにしたものである。これによって、三相負荷に不平
衡を生じさせることなく、単相負荷に電力を首尾よく供
給することができる。According to the present invention, a Scott connection transformer is provided on the output side of a three-phase inverter device, and a single-phase load is connected to the secondary side of the transformer. This allows power to be successfully supplied to a single phase load without creating an imbalance in the three phase load.

以下、本発明の一実施例を第１図および第２図により説
明する。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

第１図は本インバータ装置の概要を示す図である。本イ
ンバータの特長は三相インバータ装置１の出力側にスコ
ツト接続変圧器３を接続し、三相インバータ装置１より
、三相負荷２、単相負荷４゜５に電力を供給する。FIG. 1 is a diagram showing an outline of the present inverter device. The feature of this inverter is that a Scotto connection transformer 3 is connected to the output side of a three-phase inverter device 1, and power is supplied from the three-phase inverter device 1 to a three-phase load 2 and a single-phase load 4.5.

第２図は第１図のスコツト接続変圧器３の内部構造を示
す図である。定格の等しい変圧器６．７を用いる。変圧
器６にＶ、−Ｕ、巻線の５−／２＝０．８６６の点Ｚ１
　に口出し線を設け、他端Ｕ１を変圧器７のＶ、−Ｕ、
巻線の中点Ｎに接続し、変圧器６のＺ１端子、変圧器７
のＵ２およびＵ３端子を第１図三相インバータ１め三相
出力端子Ｕ。FIG. 2 is a diagram showing the internal structure of the Scott connection transformer 3 of FIG. 1. Use transformers 6.7 of equal rating. V to transformer 6, -U, point Z1 of winding 5-/2=0.866
A lead wire is provided at , and the other end U1 is connected to V, -U,
Connect to midpoint N of the winding, Z1 terminal of transformer 6, transformer 7
The U2 and U3 terminals of the Figure 1 three-phase inverter are connected to the first three-phase output terminal U.

ｖ、Ｗに接続する。一方、変圧器６のＹｌ　と変圧器７
のＹ２端子をＯ端子に接続し他方のＸ、端子をＤ端子、
Ｘ２端子をＱ端子へ接続する。このとき０端子、Ｄ端子
お工びＱ端子間には三相三線式交流電力を得ることがで
きる。Connect to v and W. On the other hand, Yl of transformer 6 and transformer 7
Connect the Y2 terminal of the terminal to the O terminal, connect the other X terminal to the D terminal,
Connect the X2 terminal to the Q terminal. At this time, three-phase three-wire AC power can be obtained between the 0 terminal, the D terminal, and the Q terminal.

三相インバータ装置１１１−１１ｍａ端子およびｂ端子
より直流電力を暇シ入扛、三相電力をＵ、Ｖ、Ｗ端子間
に発生させる。ここで三相負荷１ｊ：Ｕ、　Ｖ。DC power is input from the three-phase inverter device 111-11ma and b terminals, and three-phase power is generated between the U, V, and W terminals. Here, three-phase load 1j: U, V.

Ｗ端子へ接続されており、三相インバータ１よシ直接三
相電力を得る。他方単相負荷は三相インバータ１工りス
コツト接続変圧器３を介して電力を得る。単相負荷は単
相負荷４と単相負荷５に分かれて、−それぞれＯ端子と
Ｄ端子間、Ｏ端子とＱ端子間に接続されている。このと
き単相負荷４．５スコツト接続変圧器３によシ、三相側
、Ｕ、Ｖ。It is connected to the W terminal and receives three-phase power directly from the three-phase inverter 1. On the other hand, a single-phase load receives power via a three-phase inverter and a single-scott connection transformer 3. The single-phase load is divided into a single-phase load 4 and a single-phase load 5, which are connected between the O terminal and the D terminal and between the O terminal and the Q terminal, respectively. At this time, single-phase load 4.5 is connected to transformer 3, three-phase side, U, V.

Ｗ端子間には平衡な三相負荷電流が流れ、単相負荷電力
が大きくとも三相インバータ１各相に電力の不平衡を生
じない。A balanced three-phase load current flows between the W terminals, and even if the single-phase load power is large, power imbalance does not occur in each phase of the three-phase inverter 1.

本発明によｎば三相インバ°−夕によシ三相および単相
負荷に同時に安定した電力を供給できるため、装置の重
量１寸法の低減、効率の向上、インバータ回路の簡略化
が図れる。According to the present invention, stable power can be simultaneously supplied to three-phase and single-phase loads using a three-phase inverter, thereby reducing the weight of the device, improving efficiency, and simplifying the inverter circuit. .

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

第１図に本インバータ装置の概要を示す図、第２図は第
１図のスコツト接続変圧器の内部構造を示す図である。FIG. 1 is a diagram showing an outline of the present inverter device, and FIG. 2 is a diagram showing the internal structure of the Scott connection transformer of FIG. 1.

Claims (1)

【特許請求の範囲】[Claims] １、直流から三相交流を得るインノ（−夕装置において
、上記インバータ装置の出力側にスコツト結線変圧器を
設けたことを特徴とするインノく一夕装置。1. An inverter device for obtaining three-phase alternating current from direct current, characterized in that a Scott connection transformer is provided on the output side of the inverter device.
JP56167098A 1981-10-21 1981-10-21 Inverter Pending JPS5869468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56167098A JPS5869468A (en) 1981-10-21 1981-10-21 Inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56167098A JPS5869468A (en) 1981-10-21 1981-10-21 Inverter

Publications (1)

Publication Number Publication Date
JPS5869468A true JPS5869468A (en) 1983-04-25

Family

ID=15843381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56167098A Pending JPS5869468A (en) 1981-10-21 1981-10-21 Inverter

Country Status (1)

Country Link
JP (1) JPS5869468A (en)

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