CN206195628U - High voltage direct current genera tor based on series resonance - Google Patents
High voltage direct current genera tor based on series resonance Download PDFInfo
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- CN206195628U CN206195628U CN201621172857.2U CN201621172857U CN206195628U CN 206195628 U CN206195628 U CN 206195628U CN 201621172857 U CN201621172857 U CN 201621172857U CN 206195628 U CN206195628 U CN 206195628U
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- series resonance
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- direct current
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses a high voltage direct current genera tor based on series resonance, including the EMI power filter module who connects gradually, the PFC module, bridge type rectifier module, full -bridge contravariant module, series resonance boost module, rectification voltage -multiplying module, voltage on the full -bridge contravariant module outlet side electric capacity and the electric current on the inductance, electric current on the series resonance boost module outlet side inductance, rectification voltage -multiplying module outlet side all inserts voltage current conditioning circuit, voltage current conditioning circuit and DSP processing unit are connected, DSP processing unit has connect the protection circuit respectively, drive circuit, STM shows control circuit, STM shows that control circuit has connect the LCD display module respectively, key control module, drive circuit is connected with bridge type rectifier module's outlet side. The utility model discloses high voltage direct current genera tor output voltage 0~300kV continuously adjustable, the volume is littleer, and weight is lighter, and the capacity is bigger, and is easy and simple to handle, the on -the -spot withstand voltage test of being convenient for.
Description
Technical field
The utility model belongs to electrical equipment technical field, and in particular to a kind of high direct voltage based on series resonance occurs
Device.
Background technology
In order to ensure the safety and reliability of Operation of Electric Systems, power equipment is before putting into operation and will in running
Carry out pressure test.High voltage direct current generator is to carry out one of capital equipment instrument of high-potting to power equipment, main suitable
For the Motivation of enterprises such as power department, industrial and mineral, metallurgy, steel department to Zinc-Oxide Arrester, power cable, transformer, generating
The high voltage electric equipments such as machine carry out DC break down voltage experiment.Current high voltage direct current generator principle is mainly passes through alternating current 220V
High voltage direct current is obtained after rectification, inversion, transformer boost, voltage multiplying rectifier.But with the increase of test item capacity, test item etc.
Effect electric capacity also increases therewith, the testing equipment capacity that is needed in the case where voltage levels and test item equivalent capacity are very big,
Volume is very big, so traditional testing equipment (such as transformer) is all difficult to live pressure-resistant examination in capacity, volume, weight
The requirement tested.
Utility model content
The purpose of this utility model is to provide a kind of high voltage direct current generator based on series resonance, solves existing direct current
High pressure generator its capacity when test item capacity is larger can not reach the problem of On-Site Testing requirement with volume.
The technical scheme that the utility model is used is, a kind of high voltage direct current generator based on series resonance, including according to
The EMI power filtering modules of secondary connection, PFC module, bridge rectifier filtration module, full-bridge inverting module, series resonance rise pressing mold
Block, rectification and voltage multiplier module, electric current, series resonance boost module on voltage and inductance in full-bridge inverting module output lateral capacitance
Electric current, rectification and voltage multiplier module outlet side on outlet side inductance access voltage x current modulate circuit, voltage x current modulate circuit
It is connected with DSP processing units, DSP processing units are connected to protection circuit, drive circuit, STM display control circuits respectively, STM shows
Show that control circuit is connected to the outlet side of LCD display module, key control module, drive circuit and bridge rectifier filtration module respectively
Connection.
The characteristics of the utility model, also resides in：
Serially printing module is also associated with STM display control circuits.
Fin is housed on the IGBT of full-bridge inverting module, temperature sensor, temperature sensor and institute are housed on fin
State the connection of DSP processing units.
Full-bridge inverting module uses the SPWM modulation systems of unipolarity frequency multiplication.
The beneficial effects of the utility model are：The utility model is based on the high voltage direct current generator output voltage of series resonance
0~300kV continuously adjustabes, volume is smaller, and weight is lighter, and capacity is bigger, easy to operate, multiple functional, is easy to operating personnel to enter
Row On-Site Testing, is easy to field to use.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model high voltage direct current generator；
Fig. 2 is series resonance principal figure and feedback control figure in the utility model high voltage direct current generator；
Fig. 3 is Dual-loop feedback control control structure block diagram in the utility model high voltage direct current generator；
Fig. 4 is frequency sweep boosting mode figure in the utility model high voltage direct current generator.
In figure, 1.EMI power filtering modules, 2.PFC modules, 3. bridge rectifier filtration module, 4. full-bridge inverting module, 5.
Series resonance boost module, 6. rectification and voltage multiplier module, 7. voltage x current modulate circuit, 8.DSP processing units, 9. protection circuit,
10. drive circuit, 11.STM display control circuits, 12.LCD display modules, 13. serially printing modules, 14. press key control mould
Block.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of high voltage direct current generator based on series resonance of the utility model, structure is as shown in figure 1, including being sequentially connected
EMI power filtering modules 1, PFC module 2, bridge rectifier filtration module 3, full-bridge inverting module 4, series resonance boost module
5th, rectification and voltage multiplier module 6, full-bridge inverting module 4 uses the SPWM modulation systems of unipolarity frequency multiplication, the outlet side of full-bridge inverting module 4
Electric current, rectification and voltage multiplier module 6 on the electric current on voltage and inductance, the outlet side inductance of series resonance boost module 5 on electric capacity
Outlet side accesses voltage x current modulate circuit 7, and voltage x current modulate circuit 7 is connected with DSP processing units 8, DSP processing units
8 are connected to protection circuit 9, drive circuit 10, STM display control circuits 11 respectively, and STM display control circuits 11 are connected to LCD respectively
The output of display module 12, serially printing module 13, key control module 14, drive circuit 10 and bridge rectifier filtration module 3
Side connects.
Fin is housed on the IGBT of full-bridge inverting module 4, temperature sensor, temperature sensor and institute are housed on fin
DSP processing units 8 are stated to connect.
When using, the alternating current of 50Hz, AC220V is accessed into EMI power filtering modules 1 first, after connect PFC module 2 again,
Purpose is to keep apart power network with DC high-voltage source, while improving the power factor of DC high-voltage source；PFC module 2 is followed by single-phase
Bridge rectifier filtration module 3, AC220V alternating currents are become the DC voltage of for about 300V；Bridge rectifier filtration module 3 is followed by
IGBT full-bridge invertings module 4, the 300V direct currents that rectification is obtained are changed into alternating current；Full-bridge inverting module 4 connects LC series resonances
Boost module 5, by the frequency for adjusting inverter bridge output voltage make LC series loops occur resonance, so as to loop electric capacity or
It is the alternating voltage of 50kV that maximum is exported on inductance；Series resonance boost module 5 is followed by rectification and voltage multiplier module 6, will connect humorous
The big voltage that the boost module 5 that shakes is obtained carries out rectifying and wave-filtering and further boosting, obtains wishing the DC high-voltage for exporting (most
Big value is 300kV).Electric current, series resonance boost module 5 on voltage and inductance in the output lateral capacitance of full-bridge inverting module 4
Electric current, the outlet side of rectification and voltage multiplier module 6 on outlet side inductance access voltage x current modulate circuit 7, voltage x current conditioning electricity
The voltage and current signal that road 7 will detect is made a gift to someone DSP by AD acquisition chips of being made a gift to someone after the treatment of discharge circuit by AD conversion
Processing unit 8, DSP processing units 8 are connected to protection circuit 9, drive circuit 10, STM display control circuits 11 respectively, and STM shows
Control circuit 11 is connected to LCD display module 12, serially printing module 13, key control module 14, drive circuit 10 and bridge respectively
The outlet side connection of formula rectification filtering module 3.
Full-bridge inverting module 4 uses unipolarity frequency multiplication during the utility model is based on the high voltage direct current generator of series resonance
SPWM modulation systems realize the control to device for power switching, so that inverter side output voltage frequency and amplitude can be adjusted independently
Section, can change the amplitude and frequency of the output voltage of full-bridge inverting module 4 with amplitude, so as to change by controlling the frequency of modulating wave
Output voltage；Simultaneously because the modulation system of unipolarity frequency multiplication, 2 times of carrier frequencies are obtained in the outlet side of full-bridge inverting module 4
The output voltage pulse signal of rate, improves overtone order, reduces harmonic content so that the ripple of output voltage further subtracts
It is small.
On the IGBT of full-bridge inverting module 4 be equipped with fin, on fin be equipped with temperature sensor, temperature sensor with
DSP processing units 8 are connected, and the temperature that temperature sensor is used for gathering fin is transmitted to DSP processing units 8 to adjust turning for fan
Speed, when temperature is higher than a certain threshold value, immediately turns off PWM ripples for the cooling of IGBT.Temperature is installed on the fin of IGBT
Sensor, it is possible to achieve the real-time monitoring of switch tube temperature, improves the reliability of system.
The series resonance boost module 5 that the utility model is based in the high voltage direct current generator of series resonance is not used
Intermediate frequency or high frequency transformer, but boosted using the principle of RLC series resonances, structure chart is as shown in Fig. 2 series resonance liter
LC filter circuits, exciting transformer boosting loop and RLC series resonant tanks are specifically included in die block 5.When series resonance liter
When there is resonance in the loop of die block 5,80) times the voltage Q (quality factor, general 20~that inductively or capacitively go up of resonant tank
Input voltage, so as to obtain larger output voltage with less input power.Series resonance boost module 5 is using fixed no-load voltage ratio
Exciting transformer by the alternating current input cascade coupled resonator modules after preliminary boosting, reduce the volume of DC high-voltage source, improve
Its capacity, it is easy to On-Site Testing.
The utility model is based on using capacitance voltage average value outer shroud inductance electricity in the high voltage direct current generator of series resonance
The double-loop control strategy of instantaneous value inner ring is flowed, realized to system stabilization, accurately controlled.Control block diagram is as shown in figure 3, in figure
GvIt is pi regulator, GiIt is P adjusters, inductive current in LC filter circuits in series resonance boost module 5 is sent with capacitance voltage
Enter DSP processing units 8, by relatively producing SPWM ripples with carrier wave ratio after the treatment of Fig. 3 control algolithms, finally send into drive circuit 10
Drive signal is produced to drive IGBT full-bridge invertings module 4.Inner loop velocity is fast, adoption rate adjuster, in the feelings that sine wave gives
Under condition, instantaneous value inner loop feedback can make output voltage waveforms be more nearly sine wave, reduce the distortion of output voltage.Average value
Outer shroud, using pi regulator, speed is slower, but can ensure the precision of output voltage, is conducive to seeking resonance point during frequency sweep
Look for.
Using the control method of pressure regulation after first frequency modulation in high voltage direct current generator of the utility model based on series resonance,
Coarse scan (1Hz/1s) is carried out before resonance point to frequency, (0.1Hz/1s) is carefully swept to frequency when near resonance point, so as to get
Result it is more accurate.
DSP processing units 8 use TMS320F28335 during the utility model is based on the high voltage direct current generator of series resonance,
This digital processing chip increased floating-point operation kernel in existing DSP platform, keep the same of original dsp chip advantage
When, the floating-point operation of complexity is able to carry out, execution time and the memory space of code can be saved, with high precision, low cost,
Small power consumption, performance is high, and peripheral hardware integrated level is high, the features such as data and big program storage amount.
Excessively stream, overvoltage protection are provided with DSP processing units 8, once fault-signal is detected in running, immediately by
8 control protection electric circuit of DSP processing units 9 cuts off power electric.
STM display control circuits 11 are used during the utility model is based on the high voltage direct current generator of series resonance
STM32F103C8T6, it keeps real-time Communication for Power by RS232 with DSP processing units 8, by RS232 and serially printing module 13
Serially printing is realized in (printer) communication, and exchanging for data is carried out by Transistor-Transistor Logic level with LCD display module 12 (liquid crystal display).System
On system after electricity, initialization enters main interface after finishing, and user carries out relevant parameter and sets by key control module 14 by key control
The selection (such as Fig. 4) with working method is put, is set after preserving, order is handed down to DSP by STM display control circuits 11 through RS232
Processing unit 8.In process of the test, DSP processing units 8 by sampled data, including current frequency, power, voltage x current etc.
Send to STM display control circuits 11, STM display control circuits 11 are shown to liquid crystal display in real time again after receiving these data
On curtain.
The utility model is based on high voltage direct current generator output voltage 0~300kV continuously adjustabes of series resonance, and volume is more
Small, weight is lighter, and capacity is bigger, easy to operate, multiple functional, is easy to operating personnel to carry out On-Site Testing, is easy to field
Use, with wide market promotion prospect.
Claims (4)
1. a kind of high voltage direct current generator based on series resonance, it is characterised in that including the EMI power filter moulds being sequentially connected
Block (1), PFC module (2), bridge rectifier filtration module (3), full-bridge inverting module (4), series resonance boost module (5), rectification
Times die block (6), electric current, series resonance boost module on voltage and inductance in full-bridge inverting module (4) output lateral capacitance
(5) electric current on outlet side inductance, rectification and voltage multiplier module (6) outlet side access voltage x current modulate circuit (7), voltage x current
Modulate circuit (7) is connected with DSP processing units (8), and DSP processing units (8) are connected to protection circuit (9), drive circuit respectively
(10), STM display control circuits (11), STM display control circuits (11) are connected to LCD display module (12) respectively, by key control
Module (14), drive circuit (10) is connected with the outlet side of bridge rectifier filtration module (3).
2. a kind of high voltage direct current generator based on series resonance according to claim 1, it is characterised in that the STM
Serially printing module (13) is also associated with display control circuit (11).
3. a kind of high voltage direct current generator based on series resonance according to claim 1, it is characterised in that the full-bridge
Fin is housed on the IGBT of inversion module (4), temperature sensor, temperature sensor and the DSP treatment are housed on fin
Unit (8) is connected.
4. a kind of high voltage direct current generator based on series resonance according to claim 1, it is characterised in that the full-bridge
Inversion module (4) uses the SPWM modulation systems of unipolarity frequency multiplication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621172857.2U CN206195628U (en) | 2016-10-26 | 2016-10-26 | High voltage direct current genera tor based on series resonance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621172857.2U CN206195628U (en) | 2016-10-26 | 2016-10-26 | High voltage direct current genera tor based on series resonance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206195628U true CN206195628U (en) | 2017-05-24 |
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ID=58733320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621172857.2U Active CN206195628U (en) | 2016-10-26 | 2016-10-26 | High voltage direct current genera tor based on series resonance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872857A (en) * | 2018-07-26 | 2018-11-23 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of generator scene mixing pressure test device and method |
| CN114244079A (en) * | 2021-12-23 | 2022-03-25 | 西安空天紫电等离子体技术有限公司 | High-voltage pulse plasma driving circuit and driving method |
| CN118100600A (en) * | 2024-04-28 | 2024-05-28 | 苏州华电电气股份有限公司 | Intelligent feedback-based direct current high voltage generator regulation and control method and system |
-
2016
- 2016-10-26 CN CN201621172857.2U patent/CN206195628U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872857A (en) * | 2018-07-26 | 2018-11-23 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of generator scene mixing pressure test device and method |
| CN114244079A (en) * | 2021-12-23 | 2022-03-25 | 西安空天紫电等离子体技术有限公司 | High-voltage pulse plasma driving circuit and driving method |
| CN114244079B (en) * | 2021-12-23 | 2023-12-12 | 西安空天紫电等离子体技术有限公司 | High-voltage pulse plasma driving circuit and driving method |
| CN118100600A (en) * | 2024-04-28 | 2024-05-28 | 苏州华电电气股份有限公司 | Intelligent feedback-based direct current high voltage generator regulation and control method and system |
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