JPS6362706B2 - - Google Patents
Info
- Publication number
- JPS6362706B2 JPS6362706B2 JP55082934A JP8293480A JPS6362706B2 JP S6362706 B2 JPS6362706 B2 JP S6362706B2 JP 55082934 A JP55082934 A JP 55082934A JP 8293480 A JP8293480 A JP 8293480A JP S6362706 B2 JPS6362706 B2 JP S6362706B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- short circuit
- interlayer short
- voltage
- magnetic field
- 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.)
- Expired
Links
- 239000011229 interlayer Substances 0.000 claims description 33
- 238000004804 winding Methods 0.000 claims description 8
- 230000004927 fusion Effects 0.000 claims description 5
- 230000005279 excitation period Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
【発明の詳細な説明】
本発明は核融合装置に係り、特にプラズマを閉
込めるトロイダルコイル等の電気巻線の層間短絡
検出装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a nuclear fusion device, and more particularly to a device for detecting an interlayer short circuit in an electric winding such as a toroidal coil that confines plasma.
核融合装置は磁場を用いてプラズマをプラズマ
容器（真空容器）内に閉込めて核融合反応を起こ
させるものである。従つて、前記の磁場を発生さ
せるトロイダル磁場コイルの層間短絡は、装置の
致命的な故障となる。そのため、運転中にトロイ
ダル磁場コイルの層間短絡が発生した場合には、
装置を緊急停止しなければならない。そこでトロ
イダル磁場コイルの層間短絡の発生をいち早く検
出することが要請される。 A nuclear fusion device uses a magnetic field to confine plasma within a plasma container (vacuum container) to cause a nuclear fusion reaction. Therefore, an interlayer short circuit in the toroidal magnetic field coil that generates the magnetic field will result in a fatal failure of the device. Therefore, if an interlayer short circuit occurs in the toroidal magnetic field coil during operation,
The equipment must be brought to an emergency stop. Therefore, it is required to quickly detect the occurrence of an interlayer short circuit in a toroidal magnetic field coil.
核融合装置におけるトロイダル磁場コイルは、
一般にインダクタンスが大きいので、巻線内部の
層間短絡を該トロイダル磁場コイルの端子間電
圧、若しくは励磁電流の歪等の波形観測から直接
判断することは非常に困難な状態にある。第１図
は従来技術によるトロイダル磁場コイルの電気巻
線の層間短絡検出装置の構成を示すものである。 The toroidal magnetic field coil in the fusion device is
Generally, since the inductance is large, it is very difficult to directly judge an interlayer short circuit inside the winding from waveform observation such as the voltage between the terminals of the toroidal magnetic field coil or the distortion of the excitation current. FIG. 1 shows the structure of a conventional device for detecting an interlayer short circuit in an electric winding of a toroidal magnetic field coil.
トーラス型の真空容器１２の周囲にトロイダル
磁場コイルが取付けてあり、このトロイダル磁場
コイルは複数のブロツクコイル１４〜２４の直列
接続で構成されている。この各ブロツクコイル１
４〜２４の端子間には、電圧検出器２６〜３６が
接続されている。また、トロイダルコイルには励
磁電源３８が接続されている。 A toroidal magnetic field coil is attached around the torus-shaped vacuum vessel 12, and this toroidal magnetic field coil is composed of a plurality of block coils 14 to 24 connected in series. Each block coil 1
Voltage detectors 26 to 36 are connected between terminals 4 to 24. Further, an excitation power source 38 is connected to the toroidal coil.
前記電圧検出器２６〜３６の各出力は変動検出
器４０に入力される。この変動検出器４０の出力
は層間短絡検出装置４２の電圧比較回路４４に入
力される。この電圧比較回路４４にはデータ蓄積
装置４６が接続されて、このデータ蓄積装置４６
には外部の電圧設定器４８よりデータが入力され
る。電圧比較回路４４の出力は短絡判定回路５０
に入力され、この短絡判定回路５０の出力は外部
の保護装置５２に入力されている。 Each output of the voltage detectors 26 to 36 is input to a fluctuation detector 40. The output of this fluctuation detector 40 is input to a voltage comparison circuit 44 of an interlayer short circuit detection device 42. A data storage device 46 is connected to this voltage comparison circuit 44.
Data is input from an external voltage setting device 48. The output of the voltage comparison circuit 44 is sent to the short circuit determination circuit 50.
The output of this short circuit determination circuit 50 is input to an external protection device 52.
トロイダルコイルに層間短絡が発生すると、そ
の層間短絡をおこしたブロツクコイルの端子間電
圧のみ大巾に電圧が変動する。この電圧変動を予
め設定したデータと電圧比較回路４４で比較し、
更に短絡判定回路５０により短絡か否かを判断し
てトロイダル磁場コイルの層間短絡を検出する。 When an interlayer short circuit occurs in a toroidal coil, only the voltage between the terminals of the block coil that caused the interlayer short circuit fluctuates widely. This voltage fluctuation is compared with preset data by a voltage comparison circuit 44,
Further, a short circuit determining circuit 50 determines whether or not there is a short circuit to detect an interlayer short circuit of the toroidal magnetic field coil.
しかしながら上記した層間短絡検出装置では、
トロイダル磁場コイルの励磁電源３８の電圧が数
千ボルトもあるため、高圧側の電圧検出器（第１
図では電圧検出器２６となる）になるに従い対地
絶縁レベルを高くとらざるを得なくなる。このた
め設備のコストが上昇する欠点がある。 However, in the interlayer short circuit detection device described above,
Since the voltage of the excitation power supply 38 of the toroidal magnetic field coil is several thousand volts, the voltage detector (first
In the figure, the voltage detector 26) has no choice but to have a higher ground insulation level. This has the disadvantage of increasing equipment costs.
本発明の目的は上記の欠点に鑑み、省設備でコ
ストが低減された電気巻線の層間短絡検出装置を
提供するにある。 SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, an object of the present invention is to provide an apparatus for detecting interlayer short circuits in electrical windings, which requires less equipment and reduces costs.
本発明により上記の目的は、低圧側のブロツク
コイルの端子間電圧を励磁期間中に逐次周波数分
析を行ない、この周波数分析結果と予め設定した
データ又は過去の蓄積データを比較して層間短絡
を検出することにより達成される。 The above object of the present invention is to sequentially perform frequency analysis of the voltage between the terminals of the low voltage side block coil during the excitation period, and to detect interlayer short circuits by comparing the frequency analysis results with preset data or past accumulated data. This is achieved by
以下、本発明の一実施例を図面に従つて説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
第２図は本発明に係る電気巻線の層間短絡検出
装置の一実施例を示す構成図である。但し、第１
図と同様あるいは同一構成部分は同一符号を用い
て示してある。 FIG. 2 is a configuration diagram showing an embodiment of the interlayer short circuit detection device for electric windings according to the present invention. However, the first
Components similar or identical to those in the figures are indicated using the same reference numerals.
真空容器１２の周囲にトロイダル磁場コイルを
構成する複数のブロツクコイル１４〜２４が取付
けてある。このブロツクコイル１４〜２４は直列
接続され、励磁電源３８に接続されている。この
励磁電源３８に対し最も低圧側のブロツクコイル
２４の端子間には電圧検出器３６が接続されてい
る。 A plurality of block coils 14 to 24 forming a toroidal magnetic field coil are attached around the vacuum vessel 12. The block coils 14 to 24 are connected in series and connected to an excitation power source 38. A voltage detector 36 is connected between the terminals of the block coil 24 on the lowest voltage side with respect to the excitation power source 38.
この電圧検出器３６の出力は周波数分析器５４
に入力される。この周波数分析器５４の分析結果
である出力は周波数成分比較装置５６に入力され
る。この周波数成分比較装置５６に設定データ装
置５８の出力も同時に入力される。周波数成分比
較装置５６の出力は短絡判定回路５０に入力さ
れ、この短絡判定回路５０の出力は保護装置５２
に入力される。 The output of this voltage detector 36 is transmitted to a frequency analyzer 54.
is input. The output as the analysis result of the frequency analyzer 54 is input to a frequency component comparison device 56. The output of the setting data device 58 is also input to the frequency component comparison device 56 at the same time. The output of the frequency component comparison device 56 is input to the short circuit determination circuit 50, and the output of this short circuit determination circuit 50 is input to the protection device 52.
is input.
ブロツクコイル２４の端子間電圧を電圧検出器
３６により検出して、それを周波数分析器５４に
よりフーリエ分析する。この分析結果は周波数成
分比較装置５６にて、設定データ装置５８の設定
データ、又は過去の蓄積データと比較され、この
周波数成分比較装置５６の出力に基づいて短絡判
定回路５０により層間短絡の有無が検出される。
前記周波数分析器５４では、層間短絡等における
過渡現象に起因して発生する高周波のパワースペ
クトルを、コイルの励磁期間中に逐次観測してい
る。従つて、層間短絡に伴なう電圧変動を検出す
る電圧検出器３６の検出値の絶対値は、周波数分
析器５４に直接影響を及ぼさない。このためブロ
ツクコイル２４内で層間短絡が発生しなくとも、
他の全てのブロツクコイル１４〜２２とブロツク
コイル２４は電磁的な結合を有しているので、ブ
ロツクコイル２４はもとより他のブロツクコイル
１４〜２２における層間短絡に伴なうわずかな電
圧変動についてもパワースペクトル監視すること
により、トロイダルコイルの層間短絡として検出
することができる。 A voltage detector 36 detects the voltage between the terminals of the block coil 24, and a frequency analyzer 54 subjects it to Fourier analysis. This analysis result is compared with the setting data of the setting data device 58 or past accumulated data in the frequency component comparing device 56, and based on the output of the frequency component comparing device 56, the short circuit determining circuit 50 determines whether or not there is an interlayer short circuit. Detected.
The frequency analyzer 54 sequentially observes the power spectrum of high frequencies generated due to transient phenomena such as interlayer short circuits during the excitation period of the coil. Therefore, the absolute value of the detected value of the voltage detector 36, which detects voltage fluctuations due to the interlayer short circuit, does not directly affect the frequency analyzer 54. Therefore, even if no interlayer short circuit occurs within the block coil 24,
Since all other block coils 14 to 22 and block coil 24 have electromagnetic coupling, slight voltage fluctuations due to interlayer short circuits in not only block coil 24 but also other block coils 14 to 22 can be avoided. By monitoring the power spectrum, it can be detected as an interlayer short circuit in the toroidal coil.
第３図は上記の実施例を用いたシユミレーシヨ
ンの結果を示した図である。図中実線は層間短絡
が発生しない場合のパワースペクトルであり、点
線は層間短絡が発生した場合のパワースペクトル
を示している。また、横軸は高周波次数を示し、
縦軸はパーセント表示である。なお、第３図の場
合は第２図で示したブロツクコイル２０内で層間
短絡が発生したとしてシユミレートしている。 FIG. 3 is a diagram showing the results of a simulation using the above embodiment. In the figure, the solid line shows the power spectrum when no interlayer short circuit occurs, and the dotted line shows the power spectrum when an interlayer short circuit occurs. Also, the horizontal axis shows the high frequency order,
The vertical axis is expressed as a percentage. The case shown in FIG. 3 is simulated assuming that an interlayer short circuit has occurred within the block coil 20 shown in FIG.
図中Ａ，Ｂの部分に明らかなように、層間短絡
が発生した場合と発生しない場合との相異が識別
でき、これにより、トロイダル磁場コイルの層間
短絡の判定をなし得ることがわかる。 As is clear from parts A and B in the figure, the difference between cases where an interlayer short circuit occurs and cases where an interlayer short circuit does not occur can be distinguished, and it can be seen that this makes it possible to determine an interlayer short circuit in the toroidal magnetic field coil.
本実施例によれば、ブロツクコイル２４に接続
した電圧検出器３６の出力を周波数分析器５４に
て分析し、そのパワースペクトルを監視すること
により、トロイダル磁場コイルで発生する層間短
絡を検出する効果がある。また電圧検出器は１台
で済み、且つ低圧側に設置するので対地絶縁レベ
ルが低いため、装置のコストを低減させると共に
省設備化する効果がある。 According to this embodiment, the output of the voltage detector 36 connected to the block coil 24 is analyzed by the frequency analyzer 54, and the power spectrum thereof is monitored, thereby making it possible to detect an interlayer short circuit occurring in the toroidal magnetic field coil. There is. Further, only one voltage detector is required, and since it is installed on the low voltage side, the ground insulation level is low, which has the effect of reducing the cost of the device and saving equipment.
以上の説明から明らかなように本発明によれ
ば、トロイダル磁場コイルを構成する最も低圧側
のブロツクコイル端子間の電圧を励磁期間中に周
波数分析することにより、省設備でコストが低減
された電気巻線の層間短絡検出装置を提供するこ
とができる。 As is clear from the above description, according to the present invention, by frequency-analyzing the voltage between the terminals of the lowest-voltage block coil constituting the toroidal magnetic field coil during the excitation period, electricity can be generated with reduced equipment and cost. A winding interlayer short circuit detection device can be provided.
第１図は従来技術によるトロイダル磁場コイル
の層間短絡検出装置を示す構成図、第２図は本発
明に係る電気巻線の層間短絡検出装置の一実施例
を示す構成図、第３図は前記実施例を用いた層間
短絡検出のシユミレーシヨン結果図である。
１２……真空容器、１４，１６，１８，２０，
２２，２４……ブロツクコイル、３６……電圧検
出器、５０……短絡判定回路、５４……周波数分
析器、５６……周波数成分比較装置。
FIG. 1 is a configuration diagram showing a conventional toroidal magnetic field coil interlayer short circuit detection device, FIG. 2 is a configuration diagram showing an embodiment of an electric winding interlayer short circuit detection device according to the present invention, and FIG. It is a simulation result diagram of interlayer short circuit detection using an example. 12...vacuum container, 14, 16, 18, 20,
22, 24...Block coil, 36...Voltage detector, 50...Short circuit determination circuit, 54...Frequency analyzer, 56...Frequency component comparison device.
Claims (1)
する複数の直列ブロツクコイル群の中で最も低圧
側のブロツクコイルの端子間に接続した電圧検出
器と、該電圧検出器の出力値をコイル励磁期間中
に逐次周波数分析を行なう周波数分析装置と、該
周波数分析結果を予め設定したデータ又は過去の
蓄積データと比較する周波数成分比較装置とを備
え、それらの差異からコイル内で発生する層間短
絡を検出することを特徴とする電気巻線の層間短
絡検出装置。1. A voltage detector connected between the terminals of the lowest voltage side block coil among the multiple series block coils that constitute the toroidal magnetic field coil etc. of the fusion device, and the output value of the voltage detector is measured during the coil excitation period. It is equipped with a frequency analysis device that sequentially performs frequency analysis, and a frequency component comparison device that compares the frequency analysis results with preset data or past accumulated data, and detects interlayer short circuits that occur within the coil from the differences between them. A device for detecting interlayer short circuits in electrical windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8293480A JPS578464A (en) | 1980-06-20 | 1980-06-20 | Layer short circuit detecting device of electric winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8293480A JPS578464A (en) | 1980-06-20 | 1980-06-20 | Layer short circuit detecting device of electric winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS578464A JPS578464A (en) | 1982-01-16 |
| JPS6362706B2 true JPS6362706B2 (en) | 1988-12-05 |
Family
ID=13788050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8293480A Granted JPS578464A (en) | 1980-06-20 | 1980-06-20 | Layer short circuit detecting device of electric winding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS578464A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60133022A (en) * | 1983-12-20 | 1985-07-16 | Osaka Suiso Kogyo Kk | Polycondensation product |
| AT511807B1 (en) * | 2011-08-01 | 2013-03-15 | Univ Wien Tech | METHOD AND DEVICE FOR ONLINE RECOGNITION OF STATE-OF-CHARGE INSULATION IN AN ELECTRICAL MACHINE |
| RU2523762C1 (en) * | 2013-01-09 | 2014-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный университет экономики и сервиса" (ФГБОУ ВПО "ЮРГУЭС") | Device for inductive winding diagnostics |
-
1980
- 1980-06-20 JP JP8293480A patent/JPS578464A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS578464A (en) | 1982-01-16 |
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