CN103730878A - 4.6GHz high-power continuous wave system protection method - Google Patents
4.6GHz high-power continuous wave system protection method Download PDFInfo
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- CN103730878A CN103730878A CN201310723087.0A CN201310723087A CN103730878A CN 103730878 A CN103730878 A CN 103730878A CN 201310723087 A CN201310723087 A CN 201310723087A CN 103730878 A CN103730878 A CN 103730878A
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Abstract
A 4.6GHz high-power continuous wave system protection method is characterized by comprising the steps of analyzing the typical overcurrent characteristic of a klystron, selecting a proper current detection method to sample and judge key current signals of the klystron, and when the current exceeds the safety threshold value, switching off a high-voltage power source of the klystron; supplying power to a titanium pump of the klystron, detecting a power current of the titanium pump, and if the current of the titanium pump is higher than the safety limit value, forbidding a system from running; supplying power to a magnetic field power source of the klystron, limiting current changes of the klystron, and if the current changes exceed the safety range, forbidding the system from running; observing a microwave output window and an arc striking observation window, and if arc light is detected, microwave input is switched off; installing directional couplers at a plurality of key positions of a transmission line, building high-reflection protection, and if the ratio of the reflection power at the positions to incident power exceeds the safety value, switching off the microwave input of the branch circuit; stable and safe running of the system is ensured through the judgment method.
Description
technical field:
The present invention relates to a kind of electronic circuit system safeguard protection field, especially a kind of 4.6GHz High power CW system protection method;
technical background:
4.6GHz High power CW system is the important auxiliary heating system of east super ring EAST fusion facility.This system is comprised of tens high-power klystrons, up to a hundred High-Power Microwave devices, a set of phased array antenna, the negative high voltage voltage source of several covers volts up to ten thousand, multiple accessory power supply, control system, water-cooling system, monitoring system, various protection systems etc.Relate to a plurality of subjects such as microwave, high voltage, machinery, vacuum, computer, electronics, system complex degree is self-evident, and a lot of devices of system are all very expensive, the damage of certain device gently affects fusion facility discharge test, heavy cause heavy economic losses.So complicated system, keeps it to stablize, move safely, reliably most important.The inventor, in order to address the above problem, is studied invention to 4.6GHz/6MW lower hybrid wave system protection method.
summary of the invention:
A kind of method that the object of this invention is to provide 4.6GHz High power CW system protection, to solve the safety problem of High power CW systems face.
For achieving the above object, the technical solution used in the present invention is:
The guard method of 4.6GHz High power CW, is characterized in that, comprises the following steps:
(1), the typical overcurrent feature of klystron is analyzed, select suitable electric current detecting method, to the crucial current signal sampling of klystron judgement, while surpassing secure threshold, turn-off klystron high-voltage suppling power;
(2), to klystron titanium pump power supply, detect titanium pump source current, guarantee the vacuum degree of klystron, if titanium pump electric current higher than secure threshold, is forbidden system operation;
(3), klystron magnetic field power supply power supply, limit its curent change, if exceed safe range, forbid system operation;
(4), at klystron microwave output window, Protection of arcing detector is installed, detect this window and whether strike sparks, if arc light detected, turn-off microwave input;
(5), between klystron and transmission line, circulator is installed, avoid High-Power Microwave reflection to cause damage to klystron;
(6), at a plurality of key positions of transmission line, arrange sparking observation window,, if arc light detected, turn-off corresponding microwave input;
(7), at a plurality of key positions of transmission line, directional coupler is installed, set up high reflection protection, if the ratio of this position reflection power and incident power detected, surpass safety value, turn-off the microwave of this branch road and input;
(8), in microwave link, near antenna end, block isolating device and ceramic window are installed;
(9), thermoprobe is installed on antenna;
(10), system power supply adopts the power supply of system independent isolating stabilized voltage power supply;
(11), the independent earth mat of building system;
The present invention is applied in 4.6GHz/6MW lower hybrid wave system, and it can keep 4.6GHz/6MW lower hybrid wave system stability, safety, operation reliably effectively.
accompanying drawing explanation:
Fig. 1 is 4.6GHz High power CW system protection schematic diagram;
Wherein, in Reference numeral: 1, earth mat; 2, current-limiting resistance; 3, titanium pump; 4, klystron; 5, magnet-wire bag; 6, high voltage source; 7, high frequency input control end; 8, shunt; 9, instrument transformer; 10, sparking observation window; 11, directional coupler; 12, circulator; 13, observation window; 14, wave detector; 15, antenna; 16, PLC controller; 17, high reflection protection device; 18, Protection of arcing controller; 19, overcurrent protection controller; 20, temperature protection controller; 21, thermoprobe; 22, block isolating device and ceramic window.
embodiment:
The slow protection of the 4.6GHz/6MW continuous wave microwave system klystron of now take is example, and non-limiting examples is described below:
(1), for the feature of the U.S. 4.6GHz of CPI company klystron, select transformer current detection method, by overcurrent protection controller, to the crucial current signal sampling of klystron judgement, while surpassing secure threshold, turn-off klystron high-voltage suppling power;
(2), to klystron titanium pump power supply, detect titanium pump source current, guarantee the vacuum degree of klystron.Current value is gathered by PLC, if titanium pump electric current is higher than default secure threshold, by PLC control system, sends instruction, forbids system operation;
(3), klystron magnetic field power supply power supply, PLC monitoring magnetic field power supply electric current and magnitude of voltage, as long as curtage exceeds default safe range, PLC sends instruction, forbids system operation;
(4), at klystron microwave output window, Protection of arcing device is installed, detect this window and whether strike sparks, if arc light detected, turn-off microwave input; Described Protection of arcing device is transferred to Protection of arcing controller by leaded light cable by arc light by optically focused window;
(5), between klystron and transmission line, circulator is installed, avoid High-Power Microwave reflection to cause damage to klystron; Described circulator is manufactured by German AFT company;
(6), at a plurality of key positions of transmission line, arrange sparking observation window,, if arc light detected, turn-off corresponding microwave input; Described key position comprises klystron output window, circulator both sides, ceramic window both sides;
(7), at a plurality of key positions of transmission line, directional coupler is installed, set up high reflection protection, if the ratio of this position reflection power and incident power detected, surpass safety value, turn-off the microwave of this branch road and input; Described key position is between klystron output window and circulator, antenna input;
(8), in microwave link, near antenna end, block isolating device and ceramic window are installed;
(9), thermoprobe is installed on antenna, described thermoprobe is selected armoured thermocouple, its temperature value is judged by temperature polling instrument;
(10), system power supply adopts the power supply of system independent isolating stabilized voltage power supply, described isolation stabilized voltage power supply is manufactured by the special company of easy thing;
(11), the independent earth mat of building system, described earth mat selects copper sheet to lay in system location by inventor, forms earth mat.
Claims (1)
1. the guard method of 4.6GHz High power CW, is characterized in that, comprises the following steps:
(1), the typical overcurrent feature of klystron is analyzed, select suitable electric current detecting method, to the crucial current signal sampling of klystron judgement, while surpassing secure threshold, turn-off klystron high-voltage suppling power;
(2), to klystron titanium pump power supply, detect titanium pump source current, guarantee the vacuum degree of klystron, if titanium pump electric current higher than secure threshold, is forbidden system operation;
(3), klystron magnetic field power supply power supply, limit its curent change, if exceed safe range, forbid system operation;
(4), at klystron microwave output window, Protection of arcing detector is installed, detect this window and whether strike sparks, if arc light detected, turn-off microwave input;
(5), between klystron and transmission line, circulator is installed, avoid High-Power Microwave reflection to cause damage to klystron;
(6), at a plurality of key positions of transmission line, arrange sparking observation window,, if arc light detected, turn-off corresponding microwave input;
(7), at a plurality of key positions of transmission line, directional coupler is installed, set up high reflection protection, if the ratio of this position reflection power and incident power detected, surpass safety value, turn-off the microwave of this branch road and input;
(8), in microwave link, near antenna end, block isolating device and ceramic window are installed;
(9), thermoprobe is installed on antenna;
(10), system power supply adopts the power supply of system independent isolating stabilized voltage power supply;
(11), the independent earth mat of building system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310723087.0A CN103730878A (en) | 2013-12-24 | 2013-12-24 | 4.6GHz high-power continuous wave system protection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310723087.0A CN103730878A (en) | 2013-12-24 | 2013-12-24 | 4.6GHz high-power continuous wave system protection method |
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| CN103730878A true CN103730878A (en) | 2014-04-16 |
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| CN201310723087.0A Pending CN103730878A (en) | 2013-12-24 | 2013-12-24 | 4.6GHz high-power continuous wave system protection method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865623A (en) * | 2016-04-15 | 2016-08-17 | 中国工程物理研究院电子工程研究所 | Quick detecting and protecting system for large-power microwave air breakdown |
| CN109460002A (en) * | 2018-09-27 | 2019-03-12 | 电子科技大学 | Efficiently Control protection system and method in a kind of high-power millimeter wave test process |
| CN109932621A (en) * | 2017-12-15 | 2019-06-25 | 中国科学院大连化学物理研究所 | Sparking monitoring interlock inside klystron |
Citations (2)
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| JP2003219635A (en) * | 2002-01-21 | 2003-07-31 | Hitachi Ltd | Semiconductor integrated circuit for controlling power source and power source device |
| CN102520682A (en) * | 2011-11-30 | 2012-06-27 | 中国科学院等离子体物理研究所 | Lower hybrid wave power control system |
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2013
- 2013-12-24 CN CN201310723087.0A patent/CN103730878A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003219635A (en) * | 2002-01-21 | 2003-07-31 | Hitachi Ltd | Semiconductor integrated circuit for controlling power source and power source device |
| CN102520682A (en) * | 2011-11-30 | 2012-06-27 | 中国科学院等离子体物理研究所 | Lower hybrid wave power control system |
Non-Patent Citations (3)
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| 胡思明等: "托卡马克中的电磁兼容设计", 《核聚变与等离子体物理》, vol. 12, no. 2, 30 June 1992 (1992-06-30) * |
| 赵连敏等: "EAST 2MW/2450MHz低杂波电流驱动系统综述", 《核电子学与探测技术》, vol. 29, no. 9, 30 September 2009 (2009-09-30), pages 1143 - 1148 * |
| 郝慧峰等: "EAST速调管快速保护系统的研制", 《核电子学与探测技术》, vol. 31, no. 6, 30 June 2011 (2011-06-30) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865623A (en) * | 2016-04-15 | 2016-08-17 | 中国工程物理研究院电子工程研究所 | Quick detecting and protecting system for large-power microwave air breakdown |
| CN109932621A (en) * | 2017-12-15 | 2019-06-25 | 中国科学院大连化学物理研究所 | Sparking monitoring interlock inside klystron |
| CN109932621B (en) * | 2017-12-15 | 2024-03-08 | 中国科学院大连化学物理研究所 | Internal sparking monitoring interlocking device of klystron |
| CN109460002A (en) * | 2018-09-27 | 2019-03-12 | 电子科技大学 | Efficiently Control protection system and method in a kind of high-power millimeter wave test process |
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Application publication date: 20140416 |