CN210577804U - Power supply system of hydropower station hydrogen production device based on generator voltage system - Google Patents

Power supply system of hydropower station hydrogen production device based on generator voltage system Download PDF

Info

Publication number
CN210577804U
CN210577804U CN201921656149.XU CN201921656149U CN210577804U CN 210577804 U CN210577804 U CN 210577804U CN 201921656149 U CN201921656149 U CN 201921656149U CN 210577804 U CN210577804 U CN 210577804U
Authority
CN
China
Prior art keywords
electrically connected
generator
bus
hydrogen production
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201921656149.XU
Other languages
Chinese (zh)
Inventor
刘亚青
桂远乾
贺徽
张重农
肖永刚
黄天东
林建雄
李嵘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changjiang Institute of Survey Planning Design and Research Co Ltd
Original Assignee
Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changjiang Institute of Survey Planning Design and Research Co Ltd filed Critical Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority to CN201921656149.XU priority Critical patent/CN210577804U/en
Application granted granted Critical
Publication of CN210577804U publication Critical patent/CN210577804U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/133—Renewable energy sources, e.g. sunlight
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Abstract

The utility model provides a hydropower station hydrogen production device power supply system based on a generator voltage system, which is characterized by comprising a high-voltage bus, wherein the high-voltage bus is electrically connected with the input end of a main transformer, the output end of the main transformer is electrically connected with a generator through a generator circuit breaker, and the generator is grounded through a neutral point grounding device; the output end of the main transformer is electrically connected with a generator voltage bus, the input end of the high-voltage station transformer is electrically connected with the generator voltage bus, and the output end of the high-voltage station transformer is electrically connected with the station high-voltage bus; the input end of the service transformer is electrically connected with a service high-voltage bus, and the output end of the service transformer is electrically connected with a 0.4kv bus; the input end of the hydrogen production energy storage device is electrically connected with a voltage bus of the generator. The utility model aims at providing a power supply system of a hydropower station hydrogen production device based on a generator voltage system aiming at the defects of the prior art, and providing an effective power supply for the hydropower station hydrogen production device.

Description

Power supply system of hydropower station hydrogen production device based on generator voltage system
Technical Field
The invention relates to the technical field of water conservancy and hydropower, in particular to a hydropower station hydrogen production device power supply system based on a generator voltage system.
Background
The problem of water abandonment caused by incapability of absorbing the electric energy of the hydropower station can cause huge economic loss. According to the data on the network, in 2017, Sichuan publishes that the electricity and water of province is regulated to peak and the electric quantity of the abandoned water is lost 140 hundred million kilowatt hours, and the industry counts that the electricity and the abandoned water of province reaches 377 million kilowatt hours and the electric quantity of the abandoned water of the whole province is 550 million kilowatt hours. The online data shows that the water and electricity are abandoned to the domestic dam hydropower station and the adjacent stream Luo-crossing hydropower stations by about 60 hundred million degrees each year under the influence of unsmooth scheduling of each power station in the Jinshajiang river basin. Meanwhile, the phenomenon that water and electricity are abandoned to the domestic dam and the stream Luo-crossing hydropower station every year is influenced by unsmooth scheduling of all power stations of the Jinshajiang main stream, and if all the power stations of the main stream and the branch stream continue to be operated independently, artificial flood peaks may be generated, and the phenomenon is or is aggravated. The large hydropower stations built in Jinshajiang at present also include white crane beach hydropower stations and Wudongde hydropower stations, which are put into operation in 2020 and 2021 respectively. "
Due to different industry statistical apertures, the amount of water abandoned of various practical hydropower stations is extremely small, and an accurate numerical value is difficult to provide, but the problem is solved to develop an important requirement, namely, the water energy utilization efficiency is improved.
Traditionally, the main cost investment of the hydropower station is the construction cost in the engineering construction period and the operation cost in the operation period; the main income is the electric charge income of power station, and the more the electric quantity is carried to the electric wire netting, economic income is higher. But is limited by the influence of external factors, such as the rapid development of hydropower and the slow increase of power demand; the water coming in the flood season is rich, and the operation of a power system in the valley period needs hydropower peak regulation and water abandoning; the existing outward conveying channel has potential to be dug; the local net rack is weak and the capacity of the extra-high voltage transmission channel is limited; the thermal power dispatching operation management needs to be further optimized and the like, and the problem of water abandonment can occur when the electric energy generated by the hydropower station is larger than the electric energy consumed by the power grid.
At present, each large hydropower station mostly depends on factors such as external coordinated dispatching operation management, electric energy consumption channels, user consumption and the like to solve the problem of consumption of surplus electric energy. And power supply planning, power grid planning and load requirements need to be simultaneously and coordinately solved by multiple departments, so that the solving difficulty is high, and the coordination range is wide. Therefore, it is a very challenging task whether the "surplus power" of a hydropower station can be consumed internally by the power station (zero emission) and is no longer dependent on the power grid and dispatching. The prior art lacks a technical scheme for providing an initial power supply for a power generation mechanism in a power station.
Disclosure of Invention
The invention aims to provide a power supply system of a hydropower station hydrogen production device based on a generator voltage system, aiming at the defects of the prior art and providing an effective power supply for the hydropower station hydrogen production device.
The invention provides a hydropower station hydrogen production device power supply system based on a generator voltage system, which is characterized by comprising a high-voltage bus, wherein the high-voltage bus is electrically connected with the input end of a main transformer, the output end of the main transformer is electrically connected with a generator through a generator circuit breaker, and the generator is grounded through a neutral point grounding device; the output end of the main transformer is electrically connected with a generator voltage bus, the input end of the high-voltage station transformer is electrically connected with the generator voltage bus, and the output end of the high-voltage station transformer is electrically connected with the station high-voltage bus; the input end of the service transformer is electrically connected with a service high-voltage bus, and the output end of the service transformer is electrically connected with a 0.4kv bus; the input end of the hydrogen production energy storage device is electrically connected with a voltage bus of the generator.
In the technical scheme, the hydrogen production energy storage device further comprises three single-phase transformers, wherein 3 branch buses are led out from the lower end of a main bus of a voltage bus of the generator, and the 3 branch buses are electrically connected with the power supply input end of the hydrogen production energy storage device through the corresponding single-phase transformers respectively.
In the technical scheme, the hydrogen production energy storage device further comprises three single-phase transformers, wherein 3 branch buses are led out from the lower ends of the main buses of the voltage buses of the generator, the 3 branch buses are electrically connected with the input ends of the corresponding single-phase transformers through high-voltage cables respectively, and the output ends of the single-phase transformers are electrically connected with the power supply input end of the hydrogen production energy storage device.
In the technical scheme, the hydrogen production energy storage device further comprises three single-phase transformers, wherein 3 branch buses are led out from the lower end of a main bus of a voltage bus of the generator, the 3 branch buses are electrically connected with the input ends of the corresponding single-phase transformers through copper bars respectively, and the output ends of the single-phase transformers are electrically connected with the power supply input end of the hydrogen production energy storage device.
Among the above-mentioned technical scheme, high tension cable adopts the parallelly connected type of many cables, and the cable type is single core cable.
The invention has the beneficial effects that: the electrolytic hydrogen production device of the hydropower station adopting the generator voltage system has the same electrolytic hydrogen production capacity and can generate the same generator generated energy theoretically, and is particularly suitable for the hydropower station with common power generation benefit and outstanding hydrogen production benefit. By adopting the mode, even a miniature hydropower station and a small hydropower station can realize larger capacity of hydrogen production by electrolysis. Is suitable for the transformation projects of various small hydropower stations. The invention combines the existing equipment of the power system in the hydropower station, and provides a three-phase or single-phase power supply required by the hydrogen production device through reasonable wiring and arrangement.
Drawings
FIG. 1 schematic diagram of electricity extraction for hydrogen production system
FIG. 2 electric power supply schematic diagram of electrolytic hydrogen production single-phase transformer (branch bus type)
Description of reference numerals:
(1) an isolated phase enclosed bus main bus; (2) a branch bus; (3) an aluminum corrugated tube; (4) single-phase transformer for electrolytic hydrogen production
FIG. 3 electric power supply schematic diagram of electrolytic hydrogen production single-phase transformer (Cable type)
Description of reference numerals:
(1) an isolated phase enclosed bus main bus; (2) a branch bus; (3) cables (including cable joints); (4) single-phase transformer for electrolytic hydrogen production
Reference numerals of electricity getting schematic diagrams of the common-box bus/isolated-phase common-box bus/tubular common-box bus in the figures 4-7 are illustrated:
(1) a common box enclosed bus main bus; (2) a bus copper bar; (3) a support insulator; (4) a single-phase transformer for electrolytic hydrogen production; (5) a conductor copper bar; (6) isolated phase common box enclosed bus; (7) a tubular common-box enclosed bus; (8) a tubular conductor; (9) a tubular branch bus; (10) tubular common box enclosed bus branch bus shell
Detailed Description
The invention will be further described in detail with reference to the following drawings and specific examples, which are not intended to limit the invention, but are for clear understanding.
The patent of the utility model provides a power supply system of a hydropower station hydrogen production device based on a generator voltage system, which utilizes the electric energy resource of the hydropower station to realize electrolytic hydrogen production. The electric energy for hydrogen production by electrolysis is taken from a large-current bus of the generator, and various electricity taking modes are provided according to different large-current bus types of the generator.
According to the voltage grade and the capacity of the generator of the hydropower station, the large-current bus of the generator comprises an isolated-phase enclosed bus, a common-box enclosed bus, a partition box enclosed bus, a tubular common-box enclosed bus, an open type bus, a shielding insulation tubular bus, a cable enclosed bus and the like. According to different large-current bus types of the generator, the invention provides different electricity taking modes of the electrolytic hydrogen production system.
The electricity taking mode of the electrolytic hydrogen production system which can be adopted by different bus types comprises the following steps: (1) a branch bus type; (2) a cable type; (3) copper bar form;
(1) branched bus bar type
Taking an isolated phase enclosed bus as an example, the isolated phase enclosed bus is composed of two concentric aluminum pipes or copper pipes with different diameters, and an outer layer metal pipe of the isolated phase enclosed bus is a shell and plays a role in electromagnetic shielding or protection; the inner layer metal tube is a conductor and plays a role in transmitting electric energy. As shown in fig. 2, a branch bus is led out from the lower end of the main bus of the centrifugal closed bus, the branch bus is directly connected to the single-phase transformer for electrolytic hydrogen production, and the connecting part of the shell of the single-phase transformer for electrolytic hydrogen production is an aluminum corrugated sleeve for reducing the assembly errors of different devices. The electricity taking mode is suitable for the condition that the electrolytic hydrogen production system is close to a generator voltage system and the arrangement space is enough.
The branch bus bar type described above is equally applicable to bus bar types such as common box enclosed bus bar, compartment enclosed bus bar, tubular common box enclosed bus bar, as shown in fig. 4-7.
For the common-box enclosed bus, as shown in fig. 4, a copper bar is led out from the lower part of the common-box enclosed bus and is directly connected to an electrolytic hydrogen production transformer, and the outside of the three-phase copper bar is still protected by a metal box body.
As shown in fig. 5, the enclosed busbar of the compartment is different from the type a in that A, B, C three phases are separated by a metal partition plate, and other connection types are the same.
The tubular common-box enclosed busbar is of a type C and a type D. As shown in fig. 6, the type C directly adopts independent type tubular branch buses to be connected to each single-phase electrolytic hydrogen production transformer. As shown in fig. 7, the main body of the type D still adopts a common-box type tubular branch bus, and branches to each single-phase electrolytic hydrogen production transformer after approaching the single-phase electrolytic hydrogen production transformer.
(2) Cable type
As shown in fig. 3, the type of the branch bus is different from that of the branch bus (1), the branch bus led out from the main bus is not directly connected to the electrolytic hydrogen production transformer, but is connected with a high-voltage cable and is directly connected to the electrolytic hydrogen production single-phase transformer. By adopting the electricity taking mode, the power generation device is suitable for the conditions that the electrolytic hydrogen production system is far away from a generator voltage system, and the electric energy transmission path is complex or difficult to realize. The method has the lowest requirement on civil engineering, and can effectively reduce civil investment.
When the cable type is adopted, because the current consumption of the electrolytic hydrogen production system is large, a plurality of cables can be connected in parallel, and the cable type is a single-core cable, and a return conductor needs to be configured or a certain electromagnetic shielding measure needs to be adopted. The specific requirement is determined according to the actual distance and the cable path.
The cable type is suitable for the types of an isolated phase enclosed bus, a common box enclosed bus, a partition box enclosed bus, a tubular common box enclosed bus, an open type bus, a shielding insulation tubular bus, a cable enclosed bus and the like.
(3) Copper bar type
Similar to the type shown in fig. 3, the cable shown in fig. 3 is replaced by copper bars for connecting branch buses and the electrolytic hydrogen production transformer in a copper bar connection mode. The copper bar can be exposed, and can also be an insulating copper bar wrapped by an insulating layer and the like. When the copper bar is adopted for connection, the heat dissipation effect is optimal, but the problem of heating of metal components on the connection path of the copper bar needs to be particularly noticed.
The cable type is suitable for the types of an isolated phase enclosed bus, a common box enclosed bus, a partition box enclosed bus, a tubular common box enclosed bus, an open type bus, a shielding insulation tubular bus, a cable enclosed bus and the like.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.

Claims (5)

1. A hydropower station hydrogen production device power supply system based on a generator voltage system is characterized by comprising a high-voltage bus, wherein the high-voltage bus is electrically connected with the input end of a main transformer, the output end of the main transformer is electrically connected with a generator through a generator circuit breaker, and the generator is grounded through a neutral point grounding device; the output end of the main transformer is electrically connected with a generator voltage bus, the input end of the high-voltage station transformer is electrically connected with the generator voltage bus, and the output end of the high-voltage station transformer is electrically connected with the station high-voltage bus; the input end of the service transformer is electrically connected with a service high-voltage bus, and the output end of the service transformer is electrically connected with a 0.4kv bus; the input end of the hydrogen production energy storage device is electrically connected with a voltage bus of the generator.
2. The generator voltage system based hydropower station hydrogen plant power supply system of claim 1, wherein: the generator voltage bus main bus lower end leads out 3 branch buses, and the 3 branch buses are respectively and electrically connected with the power supply input end of the hydrogen production energy storage device through the corresponding single-phase transformers.
3. The hydropower station hydrogen production device power supply system based on the generator voltage system according to claim 1, further comprising three single-phase transformers, wherein 3 branch buses are led out from the lower ends of main buses of the generator voltage bus, the 3 branch buses are respectively electrically connected with the input ends of the corresponding single-phase transformers through high-voltage cables, and the output ends of the single-phase transformers are electrically connected with the power supply input ends of the hydrogen production energy storage devices.
4. The hydropower station hydrogen production device power supply system based on the generator voltage system according to claim 1, further comprising three single-phase transformers, wherein 3 branch buses are led out from the lower ends of main buses of the generator voltage bus, the 3 branch buses are respectively electrically connected with the input ends of the corresponding single-phase transformers through copper bars, and the output ends of the single-phase transformers are electrically connected with the power supply input ends of the hydrogen production energy storage devices.
5. The generator voltage system based hydropower station hydrogen production plant power supply system according to claim 3, wherein the high-voltage cable is in a form of a plurality of cables connected in parallel, and the cables are all single-core cables.
CN201921656149.XU 2019-09-30 2019-09-30 Power supply system of hydropower station hydrogen production device based on generator voltage system Active CN210577804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921656149.XU CN210577804U (en) 2019-09-30 2019-09-30 Power supply system of hydropower station hydrogen production device based on generator voltage system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921656149.XU CN210577804U (en) 2019-09-30 2019-09-30 Power supply system of hydropower station hydrogen production device based on generator voltage system

Publications (1)

Publication Number Publication Date
CN210577804U true CN210577804U (en) 2020-05-19

Family

ID=70634834

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921656149.XU Active CN210577804U (en) 2019-09-30 2019-09-30 Power supply system of hydropower station hydrogen production device based on generator voltage system

Country Status (1)

Country Link
CN (1) CN210577804U (en)

Similar Documents

Publication Publication Date Title
Humpert Long distance transmission systems for the future electricity supply–Analysis of possibilities and restrictions
Ray Electrical Power Systems: Concept, Theory and Practice
Furuse et al. Feasibility study of low-voltage DC superconducting distribution system
Hussein et al. Comparative study of HVDC and HVAC systems in presence of large scale renewable energy sources
CN210577804U (en) Power supply system of hydropower station hydrogen production device based on generator voltage system
Dai et al. Transmission technologies and implementations: Building a stronger, smarter power grid in China
Vasquez-Arnez et al. Tap-off power from the overhead shield wires of an HV transmission line
WO2017037640A1 (en) Enhancing collection of electrical power in an energy collection system
Asplund et al. A novel approach to providing on route power supplies to rural and urban communities in close proximity to the extra high voltage DC transmission line
McCall et al. Combining superconductor cables and VSC HVDC terminals for long distance transmission
Vitulano et al. HVAC-to-HVDC OHL conversion: a study case in the Sicilian transmission network
Joe-Uzuegbu et al. High Voltage Direct Current (HVDC) technology: An alternative means of power transmission
Parise et al. Prospected evolution for low voltage customers: Ecodesign of the electrical distribution system
Mutluer et al. A unified relocatable SVC for open-cast lignite mining in Turkey
Meridji et al. High-voltage dc conversion: Boosting transmission capacity in the grid
Naidoo et al. Investigations into the upgrading of existing HVAC power transmission circuits for higher power transfers using HVDC technology
ELSHERIF The application of superconducting technologies in future electrical power systems
CN106100571A (en) A kind of group string data photovoltaic DC-to-AC converter exchange wiring construction in parallel and grid-connected unit
Ren et al. Techno-economic feasibility study on HTS power cables
Oni et al. Technical performance and cost analysis of a 600kv HVDC link on South Africa's EHV network
Huang Study on the operation of a low-voltage AC microgrid with multiple distributed generations
CN210577820U (en) High-voltage station service power supply system of hydrogen production and energy storage device of hydropower station
CN210577805U (en) Hydropower station hydrogen production device power supply system based on 0.4kV station power system
CN205992745U (en) A kind of intelligent compact photovoltaic generation preassembled transformer station
CN218352256U (en) Power standby power supply circuit for extra-high voltage converter station

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant