CN112134469B - Power supply device suitable for high-power and ultra-high-power water electrolysis hydrogen production - Google Patents
Power supply device suitable for high-power and ultra-high-power water electrolysis hydrogen production Download PDFInfo
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- CN112134469B CN112134469B CN202011031803.5A CN202011031803A CN112134469B CN 112134469 B CN112134469 B CN 112134469B CN 202011031803 A CN202011031803 A CN 202011031803A CN 112134469 B CN112134469 B CN 112134469B
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 23
- 239000001257 hydrogen Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000009499 grossing Methods 0.000 claims description 18
- 238000011217 control strategy Methods 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000004146 energy storage Methods 0.000 claims description 11
- 230000004044 response Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M5/4585—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4216—Arrangements for improving power factor of AC input operating from a three-phase input voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0012—Control circuits using digital or numerical techniques
-
- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The power supply device is suitable for high-power and ultra-high-power water electrolysis hydrogen production, and belongs to the technical field of electrolytic hydrogen production.
Description
Technical Field
The invention belongs to the technical field of electrolytic hydrogen production, and particularly relates to a power supply device suitable for high-power and ultra-high-power water electrolysis hydrogen production.
Background
With the national demand for green and environment-friendly energy, hydrogen is widely focused and adopted as a clean energy, and the replacement of hydrogen by electrolyzed water is a better environment-friendly hydrogen production method. The main high-power hydrogen electrolysis device in the current market adopts a silicon controlled topology structure, the topology structure has the conditions of low power factor at the power grid side and larger current harmonic content, and a single machine cannot meet the power grid requirement, and particularly has larger pollution to the power quality of the power grid in high-power application occasions and influences the normal operation of other equipment. Therefore, there is an urgent need to develop a direct current high-power supply for electrolyzed water, which can solve the problems of harmonic content and power factor, for the application of power electronics for high-power electrolysis of hydrogen.
Disclosure of Invention
The invention solves the technical problems that: the invention provides a power supply device suitable for high-power and ultra-high-power water electrolysis hydrogen production, which reduces the pollution of harmonic waves and power factors generated by high-power electronic equipment to a power grid through the change of a topological graph and a control strategy, effectively reduces the harmonic waves at the grid side, improves the power factors, improves the system efficiency and meets the application occasions of high-power water electrolysis hydrogen production which are urgently needed at present.
The invention adopts the technical scheme that: the power supply device suitable for high-power and ultra-high-power water electrolysis hydrogen production comprises a topological circuit for reducing network side harmonic waves and improving power factors, wherein the topological circuit comprises a transformer 1, an inductor L2, an inductor L3, a rectifier 1, a smoothing reactor L4, an energy storage capacitor C1, a resistor R1, an inverter, an inductor L5, an inductor L6, an inductor L7, a transformer 2, a rectifier 2 and a rectifier 3; the input of the transformer 1 is connected with a power grid, the output of the transformer 1 is connected with an inductor L1, an inductor L2 and an inductor L3, the inductor L1, the inductor L2 and the inductor L3 are connected with the rectifier 1, the rectifier 1 is connected with an inverter through a smoothing reactor L4, an energy storage capacitor C1 and a resistor R1 are connected in parallel between a connecting pin of the smoothing reactor L4 and the inverter and a direct connecting pin of the rectifier 1, the output of the inverter is connected with the input of the transformer 2 through an inductor L5, an inductor L6 and an inductor L7, the two outputs of the transformer 2 are respectively connected with a rectifier 2 and a rectifier 3, the rectifier 2 is connected with a load RL through a smoothing reactor L8, the rectifier 3 is connected with the load RL through a smoothing reactor L9, and the two ends of the load RL are connected with the energy storage capacitor C2 in parallel.
Further limiting the technical scheme, the transformer 1 adopts a star-delta type transformer.
Further limiting the technical scheme, the rectifier 1 adopts a multi-level rectifier, the rectifier 1 adopts a DSP+FPGA control platform and a high-precision peripheral sampling conditioning circuit for control, and the rectifier 1 samples three-phase voltage of a power grid and sends sampled voltage and current signals to the DSP and the FPGA for rectification control.
Further limiting the technical scheme, controlling the inverter through the DSP+CPLD control platform, performing high-precision sampling on the direct-current voltage and current output by the rear-stage load side by the inverter, and providing sampled data for the DSP for processing, so as to calculate the modulation ratio of the alternating-current voltage and current to be modulated; the DSP adopts a vector control strategy to rapidly control the voltage ring and the current ring, the current ring is a rapid response ring and adopts a rapid ring control strategy, and the response speed requirement of the voltage ring is inferior to that of the current ring and adopts a slow ring control strategy; the inverter outputs a stable and controlled alternating current fitting voltage which is supplied to the transformer 2 at the later stage through an inductor L5, an inductor L6 and an inductor L7 for energy transmission; the inversion frequency of the inverter is controlled between 500Hz and 200 Hz.
Further limiting the technical scheme, the transformer 2 adopts an intermediate frequency transformer, and the intermediate frequency transformer supplies the converted voltage to the rectifier 2 and the rectifier 3 through a YYY winding voltage conversion function.
Further limiting the technical scheme, the rectifier 2 and the rectifier 3 adopt diode full-bridge rectifiers.
Compared with the prior art, the invention has the advantages that:
The power output circuit comprises a rectifier, an inductor, a capacitor, an inverter, a transformer and the like, wherein a control part adopts DSP+FPGA and DSP+CPLD architectures, and through the superiority of topology and control strategies, the pollution of harmonic waves and power factors generated by high-power electronic equipment to a power grid is reduced, the harmonic waves on the grid side are effectively reduced, the power factors are improved, and the system efficiency is improved, so that the application occasions of high-power electrolytic hydrogen production which are urgently needed at present are met.
Drawings
FIG. 1 is a topology of the present invention;
FIG. 2 is a schematic diagram of a control hardware architecture according to the present invention;
FIG. 3 is a diagram of a phase voltage current oscilloscope according to an embodiment of the invention;
fig. 4 is a level-modulated wave generator diagram of the rectifier 1 according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The inclusion of an element as defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Referring to fig. 1-4, embodiments of the present invention are described in detail.
The power supply device suitable for high-power and ultra-high-power water electrolysis hydrogen production comprises a topological circuit for reducing network side harmonic waves and improving power factors, wherein the topological circuit comprises a transformer 1, an inductor L2, an inductor L3, a rectifier 1, a smoothing reactor L4, an energy storage capacitor C1, a resistor R1, an inverter, an inductor L5, an inductor L6, an inductor L7, a transformer 2, a rectifier 2 and a rectifier 3; the input of the transformer 1 is connected with a power grid, the output of the transformer 1 is connected with an inductor L1, an inductor L2 and an inductor L3, the inductor L1, the inductor L2 and the inductor L3 are connected with the rectifier 1, the rectifier 1 is connected with an inverter through a smoothing reactor L4, an energy storage capacitor C1 and a resistor R1 are connected in parallel between a connecting pin of the smoothing reactor L4 and the inverter and a direct connecting pin of the rectifier 1, the output of the inverter is connected with the input of the transformer 2 through an inductor L5, an inductor L6 and an inductor L7, the two outputs of the transformer 2 are respectively connected with a rectifier 2 and a rectifier 3, the rectifier 2 is connected with a load RL through a smoothing reactor L8, the rectifier 3 is connected with the load RL through a smoothing reactor L9, and the two ends of the load RL are connected with the energy storage capacitor C2 in parallel.
The transformer 1 adopts a star-delta type transformer, and the transformer 1 has the effect of isolating equipment from voltage generated by a power grid, so that the influence on the safety of the power grid in the later-stage work is reduced.
The rectifier 1 adopts a multi-level rectifier, as shown in fig. 2, the rectifier 1 adopts a DSP+FPGA control platform and a high-precision peripheral sampling conditioning circuit for control, the rectifier 1 samples three-phase voltage of a power grid and sends sampled voltage and current signals to the DSP and the FPGA, and high-efficiency rectification control is carried out through a three-level algorithm and a control algorithm of a vector modulation technology. The PLL of the DSP performs phase locking on the power grid voltage; the rectifier 1 controls the power device, the inductor L1, the inductor L2 and the inductor L3 through phase calculation and a time sequence control instruction so that the elements work together, and the direct current voltage is controlled within a design range. The voltage waveform of the power device controlled by the rectifier 1 is shown in fig. 4, and the multi-level control strategy can effectively reduce harmonic waves in a power grid and improve the power factor. The voltage and the current after the control on the power grid side are shown in the figure 3, so that the power factor of the power grid can be effectively improved.
The inverter is controlled by the DSP+CPLD control platform, as shown in fig. 2, the inverter samples the direct-current voltage and current output by the load side of the rear stage with high accuracy and provides the sampled data for the DSP for processing, so as to calculate the modulation ratio of the alternating-current voltage and current to be modulated. The DSP adopts a vector control strategy to rapidly control a voltage loop and a current loop, the current loop is a rapid response loop and adopts a rapid loop control strategy, and the response speed of the voltage loop is required to be inferior to that of the current loop and adopts a slow loop control strategy. The inverter outputs a stable and controlled alternating current fitting voltage to the transformer 2 at the later stage for energy transmission through the inductor L5, the inductor L6 and the inductor L7 by an advanced synovial control theory. The inversion frequency of the inverter is controlled between 500Hz and 200Hz, so that the transmission efficiency can be improved, the power grade of the smoothing reactor at the later stage can be reduced, and the power improvement and the miniaturization are facilitated.
The transformer 2 adopts an intermediate frequency transformer, and the intermediate frequency transformer supplies converted voltage to the rectifier 2 and the rectifier 3 through a YYY winding voltage conversion function.
The rectifier 2 and the rectifier 3 are diode full bridge rectifiers.
Working principle: the power grid isolates three-phase alternating current through a transformer 1, and then converts the three-phase alternating current into direct current through an inductor L1, an inductor L2, an inductor L3 and a rectifier 1; the direct-current voltage rectified by the rectifier 1 is stabilized and filtered by the power smoothing reactor L4 and the energy storage capacitor C1 and then is supplied to a post-stage inverter for inversion; the inverter supplies the intermediate frequency voltage which is inverted to the intermediate frequency transformer 2 through the inductor L5, the inductor L6 and the inductor L7, and finally, the direct current voltage and the direct current which need to be output are output to the hydrogen electrolysis tank through the diode full-bridge rectifier 2 and the rectifier 3 through the smoothing reactors L8 and L9 and the energy storage capacitor C2. Thereby completing the stable hydrogen production process.
The invention is composed of inductance, capacitance, transformer, inverter, etc. the control part adopts DSP+FPGA and DSP+CPLD architecture, through the superiority of topology and control strategy, reduces the pollution of harmonic wave and power factor generated by high-power electronic equipment to the power network, effectively reduces the harmonic wave at the network side, improves the power factor, improves the system efficiency, and meets the application occasion of high-power electrolytic hydrogen production which is needed rapidly at present.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. The utility model provides a power supply unit suitable for high-power and super high-power electrolysis water hydrogen manufacturing which characterized in that: the topology circuit comprises a transformer 1, an inductor L2, an inductor L3, a rectifier 1, a smoothing reactor L4, an energy storage capacitor C1, a resistor R1, an inverter, an inductor L5, an inductor L6, an inductor L7, a transformer 2, a rectifier 2 and a rectifier 3; the input of the transformer 1 is connected with a power grid, the output of the transformer 1 is connected with an inductor L1, an inductor L2 and an inductor L3, the inductor L1, the inductor L2 and the inductor L3 are connected with the rectifier 1, the rectifier 1 is connected with an inverter through a smoothing reactor L4, an energy storage capacitor C1 and a resistor R1 are connected in parallel between a connecting pin of the smoothing reactor L4 and the inverter and a direct connecting pin of the rectifier 1, the output of the inverter is connected with the input of the transformer 2 through an inductor L5, an inductor L6 and an inductor L7, the two outputs of the transformer 2 are respectively connected with a rectifier 2 and a rectifier 3, the rectifier 2 is connected with a load RL through a smoothing reactor L8, the rectifier 3 is connected with the load RL through a smoothing reactor L9, and the two ends of the load RL are connected with the energy storage capacitor C2 in parallel;
The rectifier 1 adopts a multi-level rectifier, the rectifier 1 adopts a DSP+FPGA control platform and a high-precision peripheral sampling conditioning circuit for control, and the rectifier 1 samples three-phase voltage of a power grid and sends sampled voltage and current signals to the DSP and the FPGA for rectification control;
The inverter is controlled by a DSP+CPLD control platform, and the inverter samples the direct-current voltage and current output by the load side of the rear stage with high accuracy and provides sampled data for the DSP for processing, so as to calculate the modulation ratio of the alternating-current voltage and current to be modulated; the DSP adopts a vector control strategy to rapidly control a voltage loop and a current loop, the current loop is a rapid response loop and adopts a rapid loop control strategy, and the response speed requirement of the voltage loop is inferior to that of the current loop and adopts a slow loop control strategy; the inverter outputs a stable and controlled alternating current fitting voltage and supplies the stable and controlled alternating current fitting voltage to the transformer 2 at the later stage through an inductor L5, an inductor L6 and an inductor L7 for energy transmission; the inversion frequency of the inverter is controlled between 500Hz and 200 Hz.
2. A power supply device for high-power and ultra-high-power water electrolysis hydrogen production according to claim 1, wherein: the transformer 1 adopts a star-delta type transformer.
3. A power supply device for high-power and ultra-high-power water electrolysis hydrogen production according to claim 1, wherein: the transformer 2 adopts an intermediate frequency transformer, and the intermediate frequency transformer supplies converted voltage to the rectifier 2 and the rectifier 3 through a YYY winding voltage conversion function.
4. A power supply device for high-power and ultra-high-power water electrolysis hydrogen production according to claim 1, wherein: the rectifier 2 and the rectifier 3 are diode full bridge rectifiers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011031803.5A CN112134469B (en) | 2020-09-27 | 2020-09-27 | Power supply device suitable for high-power and ultra-high-power water electrolysis hydrogen production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011031803.5A CN112134469B (en) | 2020-09-27 | 2020-09-27 | Power supply device suitable for high-power and ultra-high-power water electrolysis hydrogen production |
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| CN112134469A CN112134469A (en) | 2020-12-25 |
| CN112134469B true CN112134469B (en) | 2024-04-26 |
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| CN113373459B (en) * | 2021-07-05 | 2022-07-12 | 阳光电源股份有限公司 | Pulse width modulation rectifier, hydrogen production device and hydrogen production method |
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