CN112134469A - 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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- CN112134469A CN112134469A CN202011031803.5A CN202011031803A CN112134469A CN 112134469 A CN112134469 A CN 112134469A CN 202011031803 A CN202011031803 A CN 202011031803A CN 112134469 A CN112134469 A CN 112134469A
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 25
- 239000001257 hydrogen Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 13
- 238000005868 electrolysis reaction Methods 0.000 title claims description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 238000011217 control strategy Methods 0.000 claims abstract description 14
- 238000009499 grossing Methods 0.000 claims description 18
- 238000004146 energy storage Methods 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000003750 conditioning 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 4
- 230000002093 peripheral effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
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
Abstract
The power supply device comprises a power output circuit consisting of an inductor, a capacitor, a transformer, an inverter and the like, wherein a control part adopts a DSP + FPGA and a DSP + CPLD framework, and through the superiority of topology and control strategy, the pollution of harmonic waves and power factors generated by high-power electronic equipment to a power grid is reduced, the grid-side harmonic waves are effectively reduced, the power factors are improved, and the system efficiency is improved so as to meet the application occasion of high-power electrolytic hydrogen production which is urgently needed at present.
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 ultrahigh-power electrolytic water hydrogen production.
Background
With the national demand for green and environment-friendly energy, hydrogen is widely paid attention to and adopted as clean energy at present, wherein hydrogen is replaced by electrolyzed water, so that the hydrogen production method is a better environment-friendly hydrogen production method. The main high-power hydrogen electrolysis device in the market at present adopts a silicon controlled rectifier topological structure, and the topological structure has the conditions that the power factor at the side of a power grid is low, the current harmonic content is high, and a single machine cannot meet the requirements of the power grid, and particularly has high pollution to the power quality of the power grid in high-power application occasions, so that the normal operation of other equipment is influenced. Therefore, a direct-current high-power supply for electrolyzing water, which can solve the problem of harmonic content and the problem of power factor, is urgently needed to be developed for the application occasions of power electronics for electrolyzing hydrogen with high power.
Disclosure of Invention
The technical problems solved by the invention are as follows: the invention provides a power supply device suitable for high-power and ultra-high-power electrolytic hydrogen production, which reduces the pollution of harmonic waves and power factors generated by high-power electronic equipment to a power grid, effectively reduces grid-side harmonic waves, improves the power factors, improves the system efficiency and meets the application occasions of high-power electrolytic hydrogen production which are urgently needed at present through the change of a topological graph and a control strategy.
The technical scheme adopted by the invention is as follows: a power supply device suitable for high-power and ultra-high-power hydrogen production by water electrolysis comprises a topological circuit for reducing grid-side harmonic waves and improving power factors, wherein the topological circuit comprises a transformer 1, inductors (L1, L2 and L3), a rectifier 1, a smoothing reactor L4, an energy storage capacitor C1, a resistor R1, an inverter, inductors (L5, L6 and 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 inductors (L1, L2 and L3), the inductors (L1, L2 and 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 inverter and the rectifier 1, the output of the inverter is connected with the input of the transformer 2 through inductors (L5, L6 and L7), the two outputs of the transformer 2 are respectively connected with the rectifier 2 and the 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 in parallel with the energy storage capacitor C2.
In order to further limit the technical scheme, the transformer 1 is a star-delta transformer.
The technical scheme is further limited, 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 the three-phase voltage of the power grid and sends the 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 performs high-precision sampling on the direct current voltage and the current output by the rear-stage load side and provides the sampled data for the DSP to be processed, so as to calculate the modulation ratio of the alternating current voltage to the 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 voltage loop response speed requirement is second to that of the current loop and adopts a slow loop control strategy; the inverter outputs a stable and controlled alternating current fitting voltage which is supplied to a transformer 2 at the later stage through inductors (L5, L6 and L7) for energy transmission; the inversion frequency of the inverter is controlled between 500Hz and 200 Hz.
In a further limitation of the above technical solution, the transformer 2 is 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.
In a further limitation to the above technical solution, the rectifier 2 and the rectifier 3 both adopt a diode full bridge rectifier.
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 a DSP + FPGA and a DSP + CPLD framework, and through the superiority of topology and control strategy, the pollution of harmonic waves and power factors generated by high-power electronic equipment to a power grid is reduced, the grid-side harmonic waves are effectively reduced, the power factors are improved, and the system efficiency is improved so as to meet the application occasion of high-power electrolytic hydrogen production which is urgently needed at present.
Drawings
FIG. 1 is a circuit diagram of the topology of the present invention;
FIG. 2 is a diagram of the control hardware architecture of the present invention;
FIG. 3 is a diagram of a phase voltage current oscilloscope according to an embodiment of the present invention;
fig. 4 is a diagram of a level modulator of the rectifier 1 according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present 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 use of the phrase "comprising one of the elements" does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Referring to fig. 1-4, embodiments of the present invention are described in detail.
A power supply device suitable for high-power and ultra-high-power hydrogen production by water electrolysis comprises a topological circuit for reducing grid-side harmonic waves and improving power factors, as shown in figure 1, wherein the topological circuit comprises a transformer 1, an inductor (L1, L2 and L3), a rectifier 1, a smoothing reactor L4, an energy storage capacitor C1, a resistor R1, an inverter, an inductor (L5, L6 and 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 inductors (L1, L2 and L3), the inductors (L1, L2 and 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 inverter and the rectifier 1, the output of the inverter is connected with the input of the transformer 2 through inductors (L5, L6 and L7), the two outputs of the transformer 2 are respectively connected with the rectifier 2 and the 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 in parallel with the energy storage capacitor C2.
The transformer 1 adopts a star-delta transformer, and the transformer 1 has the effect of isolating the voltage generated by equipment and a power grid, so that the influence on the safety of the power grid in the later-stage work is reduced.
The rectifier 1 is a multi-level rectifier, as shown in fig. 2, the rectifier 1 is controlled by a DSP + FPGA control platform and a high-precision peripheral sampling conditioning circuit, the rectifier 1 samples three-phase voltage of a power grid, sends sampled voltage and current signals to the DSP and the FPGA, and performs high-efficiency rectification control 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; after phase calculation and a time sequence control command, the rectifier 1 controls the power device and the inductors (L1, L2 and L3) to enable the elements to work together, and controls the direct current voltage 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 current controlled by the power grid side are shown in fig. 3, so that the power factor measured by the power grid can be effectively improved.
The inverter is controlled by a DSP + CPLD control platform, as shown in fig. 2, the inverter performs high-precision sampling on the dc voltage and current output from the rear-stage load side and provides the sampled data to the DSP for processing, thereby calculating the modulation ratio of the ac voltage to the current to be modulated. The DSP adopts a vector control strategy to rapidly control the voltage loop and the current loop, the current loop is a rapid response loop and adopts a rapid loop control strategy, and the voltage loop response speed requirement 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 through advanced slip control theory, and the stable and controlled alternating current fitting voltage is supplied to a transformer 2 of the later stage through inductors (L5, L6 and L7) for energy transmission. The inversion frequency of the inverter is controlled between 500Hz and 200Hz, so that the transmission efficiency can be improved, the power level of a smoothing reactor at the rear stage can be reduced, and the power is promoted and miniaturized.
The transformer 2 is an intermediate frequency transformer which supplies the converted voltage to the rectifier 2 and the rectifier 3 through a YYY type winding voltage conversion function.
The rectifier 2 and the rectifier 3 both adopt diode full-bridge rectifiers.
The working principle is as follows: the three-phase alternating current is isolated by the power grid through the transformer 1, and then converted into direct current through the inductors (L1, L2 and L3) and the rectifier 1; the direct-current voltage rectified by the rectifier 1 is subjected to stabilizing and filtering treatment by a power smoothing reactor L4 and an energy storage capacitor C1 and then is supplied to a rear-stage inverter for inversion; the inverter supplies the intermediate frequency voltage obtained by inversion to an intermediate frequency transformer 2 through inductors (L5, L6 and L7), and finally outputs the direct current voltage and the direct current which need to be output to a hydrogen electrolytic cell through a smoothing reactor L8, L9 and an energy storage capacitor C2 through a diode full-bridge rectifier 2 and a rectifier 3. Thereby completing the stable hydrogen production process.
The power output circuit comprises an inductor, a capacitor, a transformer, an inverter and the like, a control part adopts a DSP + FPGA and a DSP + CPLD framework, and the advantages of topology and control strategy are adopted, so that the pollution of harmonic waves and power factors generated by high-power electronic equipment to a power grid is reduced, the grid-side harmonic waves are effectively reduced, the power factors are improved, the system efficiency is improved, and the application occasions of high-power electrolytic hydrogen production which are urgently needed at present are met.
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 attributes 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 description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A power supply device suitable for high-power and ultra-high-power water electrolysis hydrogen production is characterized in that: the topological circuit comprises a transformer 1, inductors (L1, L2 and L3), a rectifier 1, a smoothing reactor L4, an energy storage capacitor C1, a resistor R1, an inverter, inductors (L5, L6 and 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 inductors (L1, L2 and L3), the inductors (L1, L2 and 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 inverter and the rectifier 1, the output of the inverter is connected with the input of the transformer 2 through inductors (L5, L6 and L7), the two outputs of the transformer 2 are respectively connected with the rectifier 2 and the 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 in parallel with the energy storage capacitor C2.
2. The power supply device suitable for high-power and ultrahigh-power hydrogen production by water electrolysis as claimed in claim 1, wherein: the transformer 1 adopts a star-delta transformer.
3. The power supply device suitable for high-power and ultrahigh-power hydrogen production by water electrolysis as claimed in claim 1, wherein: rectifier 1 adopts many level rectifier, rectifier 1 adopts DSP + FPGA control platform and high accuracy periphery sampling conditioning circuit to control, rectifier 1 samples the three-phase voltage of electric wire netting and gives DSP and FPGA with the voltage current signal who samples and carries out rectification control.
4. The power supply device suitable for high-power and ultrahigh-power hydrogen production by water electrolysis as claimed in claim 1, wherein: the inverter is controlled by a DSP + CPLD control platform, the inverter carries out high-precision sampling on the direct current voltage and the current output by the rear-stage load side and provides the sampled data for the DSP to be processed, and then the modulation ratio of the alternating current voltage to be modulated to the current is calculated; 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 voltage loop response speed requirement is second 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 a transformer 2 at the rear stage through inductors (L5, L6 and L7) for energy transmission; the inversion frequency of the inverter is controlled between 500Hz and 200 Hz.
5. The power supply device suitable for high-power and ultrahigh-power hydrogen production by water electrolysis as claimed in claim 1, wherein: the transformer 2 is an intermediate frequency transformer which supplies the converted voltage to the rectifier 2 and the rectifier 3 through a YYY type winding voltage conversion function.
6. The power supply device suitable for high-power and ultrahigh-power hydrogen production by water electrolysis as claimed in claim 1, wherein: the rectifier 2 and the rectifier 3 both adopt diode full-bridge rectifiers.
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| 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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| 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373459A (en) * | 2021-07-05 | 2021-09-10 | 阳光电源股份有限公司 | Pulse width modulation rectifier, hydrogen production device and hydrogen production method |
| CN117691880A (en) * | 2024-02-03 | 2024-03-12 | 西门子能源电气设备(常州)有限公司 | High-efficiency low-harmonic electrolytic rectifying equipment and control method |
| CN117691880B (en) * | 2024-02-03 | 2024-05-10 | 西门子能源电气设备(常州)有限公司 | High-efficiency low-harmonic electrolytic rectifying equipment and control method |
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| CN108574277A (en) * | 2018-04-27 | 2018-09-25 | 清华大学 | The power electronic system model of extensive water electrolysis hydrogen production equipment |
| CN109004665A (en) * | 2018-08-31 | 2018-12-14 | 河北科技大学 | Wind-powered electricity generation, photoelectricity off-grid grid-connected hydrogen production process and system |
| CN111697628A (en) * | 2020-07-09 | 2020-09-22 | 北京雷动智创科技有限公司 | Photovoltaic electrolyzed water hydrogen production system and control method |
| CN212463075U (en) * | 2020-09-27 | 2021-02-02 | 上海绿巨人爱爵能源科技有限公司 | Power supply device suitable for high-power and ultra-high-power water electrolysis hydrogen production |
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| CN117691880A (en) * | 2024-02-03 | 2024-03-12 | 西门子能源电气设备(常州)有限公司 | High-efficiency low-harmonic electrolytic rectifying equipment and control method |
| CN117691880B (en) * | 2024-02-03 | 2024-05-10 | 西门子能源电气设备(常州)有限公司 | High-efficiency low-harmonic electrolytic rectifying equipment and control method |
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