JPS6315629A - Three-phase/two-phase power converter - Google Patents
Three-phase/two-phase power converterInfo
- Publication number
- JPS6315629A JPS6315629A JP61159189A JP15918986A JPS6315629A JP S6315629 A JPS6315629 A JP S6315629A JP 61159189 A JP61159189 A JP 61159189A JP 15918986 A JP15918986 A JP 15918986A JP S6315629 A JPS6315629 A JP S6315629A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- power
- power converter
- voltage
- distribution line
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 description 8
- 238000004804 winding Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Ac-Ac Conversion (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は３相／２相電力変換方式に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a three-phase/two-phase power conversion system.
第４図は従来の非常用ディーゼル発電機を事故系統に接
続した図で、同図において、（８）は変電所、（９）ハ
負荷、ｔｌｏ）は−線地絡事故、（ｌｌａ）、（ｌｌｂ
）、（ｌｌｃ）は配電線区分開閉器、（＋２）は事故に
よる無電圧区域、（Ｉ４）はディーゼル発電機、（１６
）は運搬車である。Figure 4 shows a conventional emergency diesel generator connected to an accident system. In the figure, (8) is a substation, (9) is a load, tlo is a - line ground fault, (lla) is (llb
), (llc) is a distribution line section switch, (+2) is a no-voltage area due to an accident, (I4) is a diesel generator, (16
) is a transport vehicle.
次に動作について説明する。変電所（８）から負荷（９
）に電力を送る配電線の一地点（ｌＯ）で−線地絡が起
こったため、区分開閉器（ｌｌａ） 、 （ｌｌｂ）、
（ｌｉｅ）が開放され区域（１２１が無電圧になってい
る。ここで事故により無電圧になった負荷（９）に電力
を供給するため、運搬可能なディーゼル発電機Ｈを運搬
車（国にのせ、開閉器（ｌｌｂ）の負荷側に発電機出力
を接続している。Next, the operation will be explained. From the substation (8) to the load (9
) Because a - line ground fault occurred at one point (lO) on the distribution line that sends power to the sectional switches (lla), (llb),
(lie) has been opened and the area (121) has become non-voltage.Here, in order to supply power to the load (9) that has become non-voltage due to the accident, a transportable diesel generator The generator output is connected to the load side of the switch (llb).
従来の非常用電源は以上のように構成されていたので、
非常用のディーゼル発電機の保守や運転に費用がかかり
、電源供給できる時間も制限される、という問題点があ
った。Conventional emergency power supplies were configured as described above.
The problem was that emergency diesel generators were expensive to maintain and operate, and the amount of time they could provide power was limited.
この発明は上記のような問題点を解消するためになされ
たもので、停電区域の電力供給の電源は、健全区間の電
力を使用するため、電源供給できる時間の制限がなく、
また保守や運転に経済的な電力変換方式を得ることを目
的とする。 。This invention was made to solve the above-mentioned problems.Since the power source for power supply in power outage areas uses power from healthy areas, there is no limit to the time that power can be supplied.
The aim is also to obtain an economical power conversion method for maintenance and operation. .
この発明に係る３相／２相電力変換方式は、３相電圧を
入力すれば２相電圧を出力し、２相電圧を入力すれば３
相電圧を出力するように匂だものである。The three-phase/two-phase power conversion system according to the present invention outputs two-phase voltage if three-phase voltage is input, and outputs three-phase voltage if two-phase voltage is input.
It is supposed to output phase voltage.
この発明における３相／２相電力変換器の３相側を、事
故が起こっていない３相配電線に接続し３相／２相電力
変換器の２相側を事故などの理由により２相しか使えな
くなった配電線に接続することにより、事故などの理由
で２相しか使えない配′亀線部分を利用して電力を供給
する。In this invention, the 3-phase side of the 3-phase/2-phase power converter is connected to a 3-phase distribution line in which no accident has occurred, and the 2-phase side of the 3-phase/2-phase power converter can only use 2 phases due to an accident or other reason. By connecting to missing power distribution lines, power can be supplied using the wiring lines where only two phases can be used due to accidents or other reasons.
以下この発明の一実施例を図について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明による誘導機を利用した３相／２相電力
変換器で、同図において、（１）は誘導機の固定子、（
２）は３相配電線、（３）は固定子の３相巻線（巻線間
の角度１２０＠） 、＋４１は誘導機の回転子、（６）
は回転子の２相巻線（巻線間の角度９０’ ） 、ｔｅ
ｌは２相配電線、（７）は接地、Ｑ６１は回転子固定用
止め具である。また、第２図は本発明による３相／２相
電力変換器を事故系統に接続した図で、同図において、
（８）は変電所、（９）は負荷、（ｌＯ）は−線地絡事
故、（ｌｌａ） 、 （ｌｌｂ） 、 （ｌｌｃ）は配
電線区分開閉器、０２１は事故による無電圧区域、（１
３ａ）、（１３ｂ）は本発明にょる３相／２相電力変換
器である。FIG. 1 shows a three-phase/two-phase power converter using an induction machine according to the present invention. In the figure, (1) is the stator of the induction machine;
2) is the 3-phase distribution line, (3) is the 3-phase winding of the stator (angle between windings 120@), +41 is the rotor of the induction machine, (6)
is the two-phase winding of the rotor (angle 90' between the windings), te
1 is a two-phase distribution line, (7) is a ground, and Q61 is a rotor fixing fixture. Moreover, FIG. 2 is a diagram in which a three-phase/two-phase power converter according to the present invention is connected to a fault system, and in the same figure,
(8) is a substation, (9) is a load, (lO) is a - line ground fault, (lla), (llb), (llc) are distribution line section switches, 021 is a no-voltage area due to an accident, ( 1
3a) and (13b) are three-phase/two-phase power converters according to the present invention.
第１図において、誘導機の固定子（１）には互いに１２
０＠角度の異なる３相配電線（２）により３相巻線（３
）が施してあり、一方誘導機の回転子（４）には互いに
９０°角度の異なる２相巻線（５）が施してあり、巻線
の端子は通常の誘導機のように短絡せず、２相配電線（
６）および接地（７）に接続されている。ここで回転子
は止め具（Ｉ頓により機械的に固定されているため、こ
の誘導機は固定子に３相電圧を入力すると、回転子から
２相電圧を出力し、逆に回転子に２相電圧を入力すると
固定子から３相電圧を出力する３相／２相変圧器として
動作する。In Figure 1, the stator (1) of the induction machine has 12
0@3-phase winding (3) by 3-phase distribution line (2) with different angles
), and on the other hand, the rotor (4) of the induction machine has two-phase windings (5) with different angles of 90 degrees from each other, and the terminals of the windings do not short-circuit like in normal induction machines. , 2-phase distribution line (
6) and ground (7). Here, the rotor is mechanically fixed by a stopper (I-stop), so when a three-phase voltage is input to the stator, this induction machine outputs a two-phase voltage from the rotor, and vice versa. When phase voltage is input, it operates as a 3-phase/2-phase transformer that outputs 3-phase voltage from the stator.
第２図は本発明による３相／２相電力変換器を事故の起
こった配電系統に応用した例を示すもので、変電所（８
）から負荷（９）に電力を送る配′ＩＩＬ線の一地点＋
１０１で一線地絡が起こったため、区分開閉器（１１ａ
）、（ｌｌｂ）、（ｌｌｃ）が開放され区域（１２１が
無電圧になっている。ここで、開閉器（ｌｌａ ）と開
閉器（ｕｂ）の両側に本発明による３相／２相電力変換
器ｒ１３ａ）。Figure 2 shows an example in which the three-phase/two-phase power converter according to the present invention is applied to a power distribution system where an accident occurred.
) to the load (9).
Due to a single line ground fault in 101, the sectional switch (11a
), (llb), (llc) are open and the area (121 is voltage-free. vessel r13a).
（１３ｂ）を取り付けることにより、事故区間の健全相
２相を通じて負荷（９）への電力の供給ができる。By installing (13b), power can be supplied to the load (9) through the two healthy phases in the accident section.
なお、上記実施例では、誘導機を利用して３相／２相電
力変換器を用いたが、第３図のようにスコツト結線を用
いた変圧器を利用しても良く、上記実施例と同様の効果
を奏する。In addition, in the above embodiment, a three-phase/two-phase power converter was used using an induction machine, but a transformer using a Scott connection as shown in FIG. It has a similar effect.
以上のようにこの発明によれば、３相／２相電圧の変換
を可能にし、変換器の３相側を事故が起こっていない３
相配電線に接続し、変換器の２相側に事故などのため２
相しか使えなくなった配電線に接続することにより、経
済的で、時間制限のない非常用電源を得られる効果があ
る。As described above, according to the present invention, it is possible to convert 3-phase/2-phase voltage, and the 3-phase side of the converter can be converted to 3-phase voltages without any accidents occurring.
It is connected to the phase distribution line, and the 2-phase side of the converter is disconnected due to an accident.
By connecting to distribution lines where only one phase can be used, it is economical and has the effect of providing emergency power without time restrictions.
第１図は本発明方式に使用する３相／２相電力変換器の
一例を示す図、第２図は本発明による３相／２相電力変
換器を事故系統に接続した一例を示す概念図、第３図は
本発明の他の実施例による３相／２相電力変換器の例を
示す図、第４図は従来の非常用ディーゼル発電機を事故
系統に接続した概念図である。
図において、（２）は３相配電線、（６）は２相配電線
、（１３ａ）、（１３ｂ）は３相／２相電力変換器であ
る。
なお、図中、同一符号は同−又は相当部分を示す０Fig. 1 is a diagram showing an example of a 3-phase/2-phase power converter used in the method of the present invention, and Fig. 2 is a conceptual diagram showing an example of a 3-phase/2-phase power converter according to the present invention connected to a fault system. , FIG. 3 is a diagram showing an example of a three-phase/two-phase power converter according to another embodiment of the present invention, and FIG. 4 is a conceptual diagram of a conventional emergency diesel generator connected to an accident system. In the figure, (2) is a three-phase distribution line, (6) is a two-phase distribution line, and (13a) and (13b) are three-phase/two-phase power converters. In addition, in the figures, the same symbols indicate the same or corresponding parts.
Claims (1)
、上記変換器の２相側を２相しか使えなくなつた配電線
に接続する３相／２相電力変換方式。A 3-phase/2-phase power conversion method in which the 3-phase side of the converter is connected to a 3-phase distribution line where no accidents have occurred, and the 2-phase side of the converter is connected to a distribution line where only 2 phases can be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61159189A JPS6315629A (en) | 1986-07-07 | 1986-07-07 | Three-phase/two-phase power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61159189A JPS6315629A (en) | 1986-07-07 | 1986-07-07 | Three-phase/two-phase power converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6315629A true JPS6315629A (en) | 1988-01-22 |
Family
ID=15688256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61159189A Pending JPS6315629A (en) | 1986-07-07 | 1986-07-07 | Three-phase/two-phase power converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6315629A (en) |
-
1986
- 1986-07-07 JP JP61159189A patent/JPS6315629A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5886888A (en) | Voltage source type power converting apparatus | |
| Fu et al. | Disturbance-free operation of a multiphase current-regulated motor drive with an opened phase | |
| US7050311B2 (en) | Multilevel converter based intelligent universal transformer | |
| JP3544838B2 (en) | Multiple inverter device and control method thereof | |
| US6831442B2 (en) | Utilizing zero-sequence switchings for reversible converters | |
| JP3238721B2 (en) | Method of controlling power converter | |
| US8248828B2 (en) | Medium voltage inverter system | |
| JPH02228279A (en) | Variable speed constant frequency starter/generator system and method of operating the system | |
| US6052293A (en) | Converter device for connection between a single-phase side on a single or multi-phase side | |
| US3942089A (en) | D.C. voltage transformation in high tension systems | |
| JPH02202324A (en) | High tension power device | |
| EP0275483B1 (en) | Three-phase transformer for cycloconverter | |
| US5657214A (en) | Stepped waveform PWM inverter | |
| JPS6315629A (en) | Three-phase/two-phase power converter | |
| JP2003324990A (en) | Variable-speed driving device | |
| US5495403A (en) | Stepped-waveform power converter utilizing a summing transformer and a single inverter bridge | |
| JPH11252992A (en) | Power converter | |
| US9281754B2 (en) | Electrical circuit, in particular used for generating electrical power | |
| JPH11146657A (en) | Power converter | |
| JP2753900B2 (en) | Multi-phase inverter device | |
| JPH10323052A (en) | Voltage dividing transformer and power converter the same | |
| JP3315184B2 (en) | Electric propulsion device with polyphase alternating current | |
| JPH0330405A (en) | Single-phase/three-phase power supply device | |
| JP2001161073A (en) | Voltage converter for multiplexing | |
| JPH06245386A (en) | Single phase ac feeding system |