CN2657277Y - Plasma high frequency power supply for lightning arrester - Google Patents
Plasma high frequency power supply for lightning arresterInfo
- Publication number
- CN2657277Y CN2657277Y CN 03266012 CN03266012U CN2657277Y CN 2657277 Y CN2657277 Y CN 2657277Y CN 03266012 CN03266012 CN 03266012 CN 03266012 U CN03266012 U CN 03266012U CN 2657277 Y CN2657277 Y CN 2657277Y
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- Prior art keywords
- high frequency
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- frequency
- coil
- voltage transformer
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- Expired - Fee Related
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Abstract
A plasma lightning arrester high frequency power supply comprises an AC input, a primary rectification system, a high frequency inversion system and a high frequency and voltage transformer, characterized in that the power supply has a soft start part, an inverter for acceptor resonance operation and a high frequency and voltage transformer. The power supply has introduced a soft shutoff technique, the working frequency of the inverter has broken through the upper switching frequency limit of the power device of 20 KHz and has realized a continuous adjustment of working frequency from 10 to 100 KHz, the inverter also has capability of inherent short-circuit protection which makes the work more safe and reliable. The output voltage of the power supply can be thousands of and ten thousands of volt or more, and the delivered power can be several kilowatt and dozens of kilowatt.
Description
Technical field
The utility model relates to a kind of plasma lightning arrester high frequency electric source, belongs to field of electronics.
Background technology
The tradition lightning-protecting engineering is thunder to be introduced underground by lightning rod, in this process, strong electromagnetic radiation may damage indoor microelectronic device, causes modern equipment equipment such as more and more universal computer, household electrical appliances, information, intelligent facility be on the rise by damage to crops caused by thunder.The plasma lightning-protecting engineering can not only be protected the house, and the energy anti-electromagnetic-radiation, protects indoor microelectronic device, is the active shocking preventing technology of a new generation.This technology is applicable to ground, sea and aerial fixing or moving target, and function is that protection target itself and inner microelectronic device thereof exempt from lightning damage.
Plasma is produced by high frequency electric source and plasma generator.Traditional high-power high voltage power supply uses Industrial Frequency Transformer to boost, and circuit is simple, but frequency is low, and volume, weight are big, and ripple, stability can not be satisfactory.Along with the reach of science and development of technology, under the condition of power electronics develop rapidly, adopt switch power technology, making the high voltage source high frequencyization is a trend.Domestic small-power high frequency low voltage switch power technology is ripe, and the high-power high-frequency high-voltage switch power technology also is in the stage of fumbling, the high-power high-frequency high-voltage Switching Power Supply of existing reported in literature generally adopts the PWM technology, switching frequency is subjected to the device performance limitations can only reach 20KHz, the loss of switch increases along with frequency increases to ratio, has also limited the further increase of frequency.
The utility model content
For improving switching frequency; reduce switching loss; reduce power volume; the utility model is incorporated into the high frequency multi resonant switch converting technique of shaking in the high voltage source; adopt the soft shutoff technology of quasi-resonance current over-zero; reduce effectively and be accompanied by the loss that high frequencyization is brought; break through the 20kHz frequency limitation of high-power IGBT module; frequency upgrading is arrived 100kHz; further reduce device volume; well-designed soft start and puncture short self-protection function improve the reliability of device greatly, and purpose is to provide practical, high frequency electric source reliably for the plasma lightning protection system.
The utility model comprises parts such as exchanging input, elementary commutation system, soft start part, high-frequency inversion system and high frequency high voltage transformer.
Ac input division divides and is made up of the normal opened contact of switch, fuse, piezo-resistance, contactor, relay CTR normally closed contact and relay R YD, and wherein normally closed contact is in parallel with normal opened contact, connects with the coil of contactor again, receives on the power supply then.
Elementary commutation system is made up of three-phase controlled rectification bridge and filter capacitor, and wherein filter capacitor and series connection are connected on the bus then.
The soft start part is made up of current-limiting resistance, filter capacitor, short-circuiting contactor, supply relay, control relay, rectifier bridge, charging resistor, charge and discharge capacitance and discharge resistance.The coils from parallel connection of coils of the coil of supply relay and contactor wherein, rectifier bridge links to each other with charging resistor, charging resistor links to each other with charge and discharge capacitance, discharge resistance links to each other with normally closed contact, and is in parallel with charge and discharge capacitance, with the coils from parallel connection of coils of control relay, the coil of control relay links to each other with normal opened contact, normal opened contact links to each other with the coil of short-circuiting contactor, and normal opened contact is in parallel with current-limiting resistance, and two ends link to each other with filter capacitor with the rectifier bridge anode respectively.Filter capacitor E1 and E2 series connection are connected on the bus then.
The high-frequency inversion system is made up of inverter bridge, resonant capacitance and high frequency high voltage transformer leakage inductance, wherein an end of resonant capacitance extremely links to each other with the E utmost point of switching tube, the C of switching tube, the other end links to each other with the former limit of high frequency high voltage transformer, and the high frequency high voltage transformer leakage inductance extremely links to each other with the E utmost point of switching tube, the C of switching tube.
The high frequency high voltage transformer part is made up of primary and secondary coil, current transformer and high-frequency and high-voltage voltage divider unshakable in one's determination, around thereon, and high-frequency and high-voltage voltage divider and parallel connection of secondary windings, current transformer are through in the secondary coil loop.The number of turn of the primary coil of high frequency high voltage transformer is tens circles, and line directly is the millimeter level, and the number of turn of secondary coil is the hundreds of circle, and line directly is a micron order.
Description of drawings
Fig. 1 is the block diagram of the utility model power supply.
Fig. 2 is the circuit theory diagrams of the utility model power supply.
Embodiment
Describe the utility model in detail below in conjunction with the drawings and specific embodiments.
Referring to accompanying drawing 1, plasma lightning arrester high frequency electric source of the present utility model comprises exchanging imports 1, elementary commutation system 2, soft start part 3, high-frequency inversion system 4 and high frequency high voltage transformer 5.
As accompanying drawing 2, exchange input 1 and form by switch SW 2, fuse fuse1, fuse2, fuse3, piezo-resistance R4, R5, R6, contactor CPW, relay normally closed contact CTR2 and relay normally open contact RYD2.Wherein normally closed contact CTR2 is in parallel with normal opened contact RYD2, connects with the coil of contactor CPW again, receives on the power supply then.
Produce the harm that extra-high pressure is brought for preventing that because of input voltage too high or electrical network breaks down; the utility model adopts piezo-resistance R4; R5; R6 and fuse Fuse1; Fuse2; the protected mode that Fuse3 cooperates; when in case the voltage between phases superpressure arrives certain numerical value; piezo-resistance is conducting at once; very big short circuit current is with the fuse quick fuse; play the overvoltage protection effect; piezo-resistance has also played the effect of restriction surge voltage simultaneously; if this power supply breaks down or load is overweight when causing input current very big; fuse also can quick fuse, and overcurrent protection is played in the inside of power supply.
For preventing the malfunctioning over current fault that causes of short-circuiting contactor CTR; the utility model adopts normally closed contact CTR2 in parallel with normal opened contact RYD2; connect with the coil of contactor CPW again; receive the circuit design on the power supply then, realized the defencive function that only just often just can power on when short-circuiting contactor CTR state.
Elementary commutation system 2 and soft start part 3 are made up of three-phase commutation bridge, current-limiting resistance R1, filter capacitor E1, E2, short-circuiting contactor CTR, supply relay RYA, control relay RYD, single-phase rectification bridge, charging resistor R2, charge and discharge capacitance E3 and discharge resistance R3.The coils from parallel connection of coils of the coil of supply relay RYA and contactor CPW wherein, rectifier bridge links to each other with charging resistor R2, charging resistor R2 links to each other with charge and discharge capacitance E3, discharge resistance R3 links to each other with normally closed contact RYA2, E3 is in parallel with charge and discharge capacitance, coils from parallel connection of coils with control relay RYD, the coil of control relay RYD links to each other with normal opened contact RYA1, normal opened contact RYD1 links to each other with the coil of short-circuiting contactor CTR, normal opened contact CTR1 is in parallel with current-limiting resistance, two ends link to each other with filter capacitor E1 with the rectifier bridge anode respectively, and filter capacitor E1 and E2 series connection are connected on the bus then.Civil power is behind three-phase commutation bridge, the output ripple direct current, enter the shunt circuit that current-limiting resistance R1 and normal opened contact CTR1 form, when initially powering on, normal opened contact CTR1 open circuit, electric current through current-limiting resistance R1 to filter capacitor E1, the E2 charging, meanwhile, supply relay RYA coil powers on, often open node R YA1 and RYA2 closure, power supply charges to charge and discharge capacitance E3 through charging resistor R2 by behind the single-phase rectification bridge, after one very short period, the last voltage of E3 reaches the threshold value of control relay RYD coil, and normal opened contact RYD1 closure powers on short-circuiting contactor CTR coil, normal opened contact CTR1 closure, civil power is behind three-phase commutation bridge, directly to filter capacitor E1, the E2 charging is surged electric current to three-phase commutation bridge when this design has not only suppressed to rigidly connect energize, the impact of device such as filter capacitor and power switch pipe, and, reduced loss by timely short circuit current-limiting resistance R1.After the outage, charge and discharge capacitance E3 prepares for starting next time through discharge resistance R3 discharge.
High-frequency inversion system 4 is made up of inverter bridge, resonant capacitance and high frequency high voltage transformer leakage inductance.Wherein the end of resonant capacitance C8 extremely links to each other with the E utmost point of switching tube IGBT1, the C of switching tube IGBT3, and the other end links to each other with the former limit of high frequency high voltage transformer, and high frequency high voltage transformer leakage inductance L1 extremely links to each other with the E utmost point of switching tube IGBT2, the C of switching tube IGBT4.Inversion system adopts the series resonance working method; according to load parameter, design resonant capacitance C8 and high frequency high voltage transformer leakage inductance L1 parameter are when making high frequency high voltage transformer open circuit and short circuit; the voltage of output is all very little, so the loop has intrinsic open circuit and short-circuit protection function.High frequency high voltage transformer 5 is made up of primary and secondary coil, current transformer and high-frequency and high-voltage voltage divider unshakable in one's determination, around thereon, wherein the number of turn of primary coil is tens circles, line directly is the millimeter level, the number of turn of secondary coil is the hundreds of circle, line directly is a micron order, high-frequency and high-voltage voltage divider and parallel connection of secondary windings, current transformer are through in the secondary coil loop, can observe output voltage and current waveform by external oscilloscope.
As shown in Figure 2: in the present embodiment: power parameter is: output voltage 20～50KV, frequency reaches 100KHz, power output 3KW, efficient 80%.
Plasma arrester high frequency electric source of the present utility model has following characteristics: 1, power is big: output Power can reach thousands of watts and tens kilowatts.
2, frequency height: frequency can be continuously adjustable at 10～100KHz.
3, the little (＜0.8m of volume3), in light weight.
4, response is fast, stable, safe and reliable, the life-span is long: have intrinsic open circuit and short-circuit protection, soft Start-up performance.
The utility model can be applicable to plasma lightning protection system and ozone generator system.
Claims (2)
1, a kind of plasma lightning arrester high frequency electric source is characterized in that comprising interchange input, elementary commutation system, soft start part, high-frequency inversion system and high frequency high voltage transformer; Ac input division divides and is made up of switch [SW2], fuse [fuse1], [fuse2], [fuse3], piezo-resistance [R4], [R5], [R6], contactor [CPW], relay normally closed contact [CTR2] and relay normally open contact [RYD2], wherein normally closed contact [CTR2] is in parallel with normal opened contact [RYD2], connect with the coil of contactor [CPW] again, receive then on the power supply; Elementary commutation system is made up of three-phase controlled rectification bridge and filter capacitor [E1], [E2], and wherein filter capacitor [E1] and [E2] series connection is connected on the bus then; The soft start part is made up of current-limiting resistance [R1], filter capacitor [E1], [E2], short-circuiting contactor [CTR], supply relay [RYA], control relay [RYD], rectifier bridge [BRIDGE1], charging resistor [R2], charge and discharge capacitance [E3] and discharge resistance [R3]; The coils from parallel connection of coils of the coil of supply relay [RYA] and contactor [CPW] wherein, rectifier bridge [BRIDGE1] charging resistor [R2] links to each other, charging resistor [R2] links to each other with charge and discharge capacitance [E3], discharge resistance [R3] links to each other with normally closed contact [RYA2], [E3] is in parallel with charge and discharge capacitance, coils from parallel connection of coils with control relay [RYD], the coil of control relay [RYD] links to each other with normal opened contact [RTA1], normal opened contact [RYD1] links to each other with the coil of short-circuiting contactor [CTR], normal opened contact [CTR1] is in parallel with current-limiting resistance, two ends link to each other with filter capacitor [E1] with the rectifier bridge anode respectively, and filter capacitor E1 and E2 series connection are connected on the bus then; The high-frequency inversion system is made up of inverter bridge, resonant capacitance [C8] and high frequency high voltage transformer leakage inductance [L1]; Wherein an end of resonant capacitance [C8] extremely links to each other with the E utmost point of switching tube [lGBT1], the C of switching tube [IGBT3], the other end links to each other with the former limit of high frequency high voltage transformer, and high frequency high voltage transformer leakage inductance [L1] extremely links to each other with the E utmost point of switching tube [IGBT2], the C of switching tube [IGBT4]; High frequency high voltage transformer is made up of primary and secondary coil, current transformer and high-frequency and high-voltage voltage divider unshakable in one's determination, around thereon, and high-frequency and high-voltage voltage divider and parallel connection of secondary windings, current transformer are through in the secondary coil loop.
2, according to the described high frequency electric source of claim 1, the number of turn that it is characterized in that the primary coil of described high frequency high voltage transformer is tens circles, and line directly is the millimeter level, and the number of turn of secondary coil is the hundreds of circle, and line directly is a micron order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266012 CN2657277Y (en) | 2003-06-24 | 2003-06-24 | Plasma high frequency power supply for lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266012 CN2657277Y (en) | 2003-06-24 | 2003-06-24 | Plasma high frequency power supply for lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2657277Y true CN2657277Y (en) | 2004-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03266012 Expired - Fee Related CN2657277Y (en) | 2003-06-24 | 2003-06-24 | Plasma high frequency power supply for lightning arrester |
Country Status (1)
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| CN (1) | CN2657277Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100553095C (en) * | 2006-12-21 | 2009-10-21 | 中国科学院电工研究所 | A kind of high-frequency and high-voltage power supply that is used for the leakage of plastic liquid container detection |
| WO2011026381A1 (en) * | 2009-09-02 | 2011-03-10 | 中兴通讯股份有限公司 | Soft-start circuit for power supply |
| WO2011097852A1 (en) * | 2010-02-10 | 2011-08-18 | 深圳市科陆电子科技股份有限公司 | Energy supply system and method of electronic high voltage power mutual-inductor |
| CN102611337A (en) * | 2011-01-20 | 2012-07-25 | 鸿富锦精密工业（深圳）有限公司 | Power supply circuit |
| CN103457481A (en) * | 2013-09-15 | 2013-12-18 | 大连海事大学 | Distribution type high-frequency high-voltage power supply device used for driving DBD plasma source groups |
| CN104767388A (en) * | 2015-04-23 | 2015-07-08 | 大连理工大学 | Ozonator power supply |
-
2003
- 2003-06-24 CN CN 03266012 patent/CN2657277Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100553095C (en) * | 2006-12-21 | 2009-10-21 | 中国科学院电工研究所 | A kind of high-frequency and high-voltage power supply that is used for the leakage of plastic liquid container detection |
| WO2011026381A1 (en) * | 2009-09-02 | 2011-03-10 | 中兴通讯股份有限公司 | Soft-start circuit for power supply |
| WO2011097852A1 (en) * | 2010-02-10 | 2011-08-18 | 深圳市科陆电子科技股份有限公司 | Energy supply system and method of electronic high voltage power mutual-inductor |
| CN102611337A (en) * | 2011-01-20 | 2012-07-25 | 鸿富锦精密工业（深圳）有限公司 | Power supply circuit |
| CN102611337B (en) * | 2011-01-20 | 2014-12-10 | 国网浙江平阳县供电有限责任公司 | Power supply circuit |
| CN103457481A (en) * | 2013-09-15 | 2013-12-18 | 大连海事大学 | Distribution type high-frequency high-voltage power supply device used for driving DBD plasma source groups |
| CN104767388A (en) * | 2015-04-23 | 2015-07-08 | 大连理工大学 | Ozonator power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |